Sheila measured the water level in the swimming pool every week for 4 weeks and found that the water level decreased by 8 millimeters in the first week, 5 millimeters in the second week, 12 millimeters in the third week and 5 millimeters in the fourth week. The net result was a loss of 10 millimeters of water over the 4 week period.
Sheila wanted to track the changes in the water level of a swimming pool over time. She measured the level every week for 4 weeks. In the first week, the water level dropped by 8 millimeters. In the second week, the level dropped by 5 millimeters. In the third week, the level dropped by 12 millimeters. Finally, in the fourth week, the level dropped by 5 millimeters. The net result of these measurements was a loss of 10 millimeters of water over the course of the 4 week period. This indicates that the hot and dry spell had a negative effect on the water level in the pool.
Total Water Loss = 8 millimeters + 5 millimeters + 12 millimeters + 5 millimeters = 30 millimeters
Total Water Gain = 0 millimeters
Net Loss = Total Water Loss - Total Water Gain = 30 millimeters - 0 millimeters = -10 millimeters
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What is SSS SAS AAS RHS?
SSS, SAS, AAS, and RHS are the similarity theories that are used to prove that two triangles are similar.
RHS: In two right-angled triangles, if the length of the hypotenuse and one side of one triangle, is equal to the length of the hypotenuse and corresponding side of the other triangle, then the two triangles are congruent
SSS: In side side side postulate if all three sides of a triangle is equal to the respective three sides of the other triangle then we will use SSS postulate.
SAS: In side angle side postulate if two sides and one angle of a triangle is equal to the respective two sides and angle then we will use the SAS postulate.
AAS: In angle angle side postulate if two angle and one side of a triangle is equal to the other two angle and side of an another triangle respectively then we will use AAS postulate.
SSS,SAS,AAS,RHS are the similarity postulates that are use to prove two triangle is similar.
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How many terms are there in the expression 5xy +9yz 3zx+ 5x 4y?
Answer:
5
Step-by-step explanation:
there are five terms: 5xy, 9yz, 3zx, 5x, and 4y.
In mathematics, a term is a part of an expression that is separated by a plus or minus sign. In this expression, the terms are 5xy, 9yz, 3zx, 5x, and 4y. Note that the equation in the question is formatted a little awkwardly, so make sure to count how many terms you see yourself too!
What is a bar line mean?
Bar line is a notation used in place of repeating numbers. It is also graphical representation used in graphs.
Bar line is a simple notation used to express a repeating number by placing a line over the number that repeats. when numbers go on forever and when not to use bar notation.
Bar line is also used in graphs. A bar line in the graph is a graphical representation based on the different parameters. They are drawn in cases when the items are compared based on the multiple parameters or observations.
There is another bar line called the vertical bar ( | ) also called the vertical line, vertical slash or upright slash is a symbol used in mathematics, computing and other areas to represent a specific type of logic or operation, depending on its context. Even within a single area such as computing, the vertical bar is applied in multiple ways.
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Which transformations do not result in mapping $(-k,\ k)$ to $(k,\ -k)$ ?
Responses
Reflection in the line $y=x$
Reflection in the line y is equal to x
Reflection in the line y=-x
Reflection in the line y is equal to negative x
Reflection in the y -axis, followed by a reflection in the x-axis
Reflection in the y-axis, followed by a reflection in the x-axis
Translation k units right, followed by a reflection in the y -axis
The transformation of the (-k, k) about the line y = x will be (k, -k). Then the correct option is A.
What is a reflection of the point?It is the image of the point which is located in the opposite direction of a given point.
The rule of the refection will be given as,
Firstly, the rule for reflecting a point about the line y = x is;
While reflecting on the line y = x, we get the reflected points by swapping the coordinates.
Now, the rule for reflecting a point about the line y = -x is;
While reflecting on the line y = -x, we get the reflected points by multiplying '-1' with the swapped coordinates.
The change of the (- k, k) about the line y = x will be (k, - k). Then the right choice is A.
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Can you justify that all sides and all angles are equal in a equilateral triangle?
If the given triangle has all three sides as congruent and the angles are same then the triangle is an equilateral triangle.
We will use the figure given below to prove the triangle as an equilateral triangle.
In the above figure,
Given, vertices of a triangle are A(X1, Y1), B(X2, Y2), and C(X3, Y3).
According to the properties of the equilateral triangle, the sides of an equilateral triangle should be equal in measure.
So, we use the distance formula:
d = √((x2 - x1)^2+(y2 - y1)^2 to verify if all three sides are congruent and equal to each other
If AB = BC = CA.
⇒ √((x(2) - x(1))^2 + (y(2) - y(1))^2) = √(x(3) - x(2))^2 + (y(3) - y(2))^2 = √(x(1) - x(3))^2+ (y(1) - y(3)) ^2
If the given triangle satisfies the above condition then the triangle is an equilateral triangle.
If the given triangle has all three sides as congruent then the triangles angles are also equal.
Hence, if the given triangle has all three sides as congruent and the angles are same then the triangle is an equilateral triangle.
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a local school board wants to determine if the proportion of households in the district that would support starting the school year a week earlier has changed from the previous year. last year, the school board determined that 65% of households supported starting school earlier. they ask a random sample of 100 households this year, and 70% state they would support starting the school year earlier. which hypotheses would determine if the proportion of households that support starting school earlier has changed this year? h 0: p
The hypotheses that would determine if the proportion of households that support starting school earlier has changed this year is C. H 0: p = 0.65, H alpha: p greater-than 0.65.
What is a null hypothesis?A statistical hypothesis known as a null hypothesis asserts that no statistical significance can be found in a given set of observations.
It is tested to see if there has been no change at the null hypothesis, which means that the proportion is still 0.65 = 65%.
It is tested whether there has been a change at the alternative hypotheses, that is, whether the proportion is no longer 0.65 = 65%.
Therefore, the correct option is C.
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Complete options
Group of answer choices
H 0: p not-equals 0.70, H alpha: p = 0.70
H 0: p = 0.70, H alpha: p not-equals 0.70
H 0: p = 0.65, H alpha: p greater-than 0.65
H 0: p = 0.65, H alpha: p not-equals 0.65
Why is IT important to integrate information?
Data integration combines data collected from various platforms to increase its value for your company. It enables your staff to collaborate more effectively and provide more for your clients.So IT is important to integrate information.
The combining of data from diverse sources with various conceptual, contextual, and typographic representations is known as information integration. It is utilised for data aggregation and mining from unstructured or partially organised sources. You may connect all of your data, people, and processes in a single solution by using an integrated solution. Today's top HSEQ management teams regard this strategy as best practise. The justification for this is straightforward: it improves reporting, efficiency, uniformity, speed, and ease of use. An integrated report's main goal is to describe to financial capital providers how a company builds, protects, or loses value over time. As a result, it includes pertinent information, both financial and otherwise.
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Im giving 80 points and i will mark brainliest!!
The table shows the multiplication of two linear expressions. Select the correct reason for each step.
Reason 1:
Reason 2:
Reason 3:
here are the answer choices for the 3 reasons
(A)associative property of multiplication
(B)commutative property of multiplication
(C)istributive property
(D) simplify
Answer:
1. (C) Distributive property | 2. (A) Associative property | 3. (D) Simplify
Step-by-step explanation:
Here's my attempt:
Reason 1:
The first reason is (C) distributive property of multiplication because you're taking the previous step and spreading it out (distributing it). Here's an example of the distributive property of multiplication:
3(4+7) = 3*4+3*7=12+21=33
This will be the same as solving 3(4+7) using PEMDAS
In this step, you're spreading out the problem the same way as the example shown is doing.
Reason 2:
The second reason is (A) the associative property of multiplication. The associative property of multiplication says that changing the grouping of the numbers in a multiplication problem doesn't change the product.
Here's an example:
(6*7)*8 = 6*(7*8)
This way, the step groups together two pairs of factors to solve the last step without changing the product.
Reason 3:
The final reason is (D) Simplify because the step doesn't use the commutative property of multiplication. Why not? Because the commutative property of multiplication states that changing the order of factors in a multiplication problem doesn't change the product (note that this is different than the associative property of multiplication). Instead, the last step just simplifies the problem.
Hopefully, you read through my explanation, and it helped. Have a good day :D
The table shows the multiplication of two linear expressions. Select the correct reason for each step.
Reason 1:
✔ distributive property
Reason 2:
✔ commutative property of multiplication
Reason 3:
✔ associative property of multiplication
Reason 4:
✔ simplify
How do you prove AAS congruence rule?
AAS (Angle-Angle-Side): If two angles and a non-included side of one triangle are congruent to two angles and the corresponding non-included side of a second triangle, then the two triangles are congruent. Hence proved
AAS (Angle-Angle-Side):
Suppose we have two triangles from figure ABC and DEF, where,
∠B = ∠E [Corresponding angles] ∠C = ∠F [Corresponding angles] And
AC = DF [Adjacent sides]
By angle sum property of triangle, we know that;
∠A + ∠B + ∠C = 180 ………(1)
∠D + ∠E + ∠F = 180 ……….(2)
From equation 1 and 2 we can say;
∠A + ∠B + ∠C = ∠D + ∠E + ∠F
∠A + ∠E + ∠F = ∠D + ∠E + ∠F [Since, ∠B = ∠E and ∠C = ∠F] ∠A = ∠D
Hence, in triangle ABC and DEF,
∠A = ∠D
AC = DF
∠C = ∠F
Hence, by ASA congruency,
Δ ABC ≅ Δ DEF
So AAS (Angle-Angle-Side) congruence rule is hence proved.
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If you are a male student, what qualities should you look for in a future wife, according to proverbs 31? if you are a female student, what qualities should you strive to display as a godly woman, according to proverbs 31? (your total response should be between 50-100 words. ).
According to Proverbs 31, She should look for a man after God's heart a man who fears the Lord and has his life fixated on the principles of the Lord. A man with a godly wisdom. A man whose belief is in the Lord.
According to Proverbs 31, He should look for a lady of noble character, who nurtures and provides for her family, who brings pride to her man as she works graciously with her hands and knows the ways to provide for her family even during hard times, and mostly the women who fear the Lord. A woman of value and virtue in the Lord.
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She should seek for a man who has the heart of God, one who reveres the Lord and bases his actions on the rules of the Lord, according to Proverbs 31. a wise man who comes from God. a person who trusts in the Lord.
According to Proverbs 31, He should look for a woman of noble character, who nurtures and provides for her family, who offers honor to her spouse as she works chastely with her hands and knows the ways to care for her family even through hard times, and most of all the ladies who fear the Lord. a lady of worth and virtue before the Lord.
Simplify the fraction in it lowest terms
44/60
Answer:
11/15
Step-by-step explanation:
Answer:
Step-by-step explanation:
44/60=22/30=11/15
11/15
What are the 3 types of discontinuity?
The three types of discontinuity are listed as follows:
Jump Discontinuity.
Infinite Discontinuity.
Removable Discontinuity.
The term discontinuity is referred as if a function is referred to as the point at which a Mathematical object is discontinuous.
The function will be discontinues if they meet the following conditions,
If the function is not defined at the given point.Where as if the function has no limit at the given point.Otherwise if the function is defined and it has a limit at that point.There are 3 type of discontinuity in math and they are listed as jump, infinite and removable.
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What characteristics change during rigid transformations?
During rigid transformations, the shape, size, and orientation of an object remain the same, while its position in space changes. This means that the distance between any two points on the object remains constant, as does the angle between any two lines. Additionally, the orientation of the object's axes (length, width, and height) remain the same.
What are transformations, exactly?Transformations are a general term for four different methods of changing the location and/or shape of a point, line, or geometric figure. The shape of the object is revealed in its pre-image, while its final form and position are revealed in the image following transformation.
What is a good example of transformation?A transformation is characterized by a significant alteration in appearance or form. Your life may change as a result of a significant event, such earning your driver's license, beginning college, or getting married. A significant, abrupt transformation is called a metamorphosis.
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A pilot was scheduled to depart at 4:00 p.m., but due to air traffic, her departure has been delayed by 16 minutes. air traffic control approved a new flight plan that will allow her to arrive four times faster than she calculated in her original flight plan. let x represent the time, in minutes, of her original flight. create an equation that can be used to predict the number of minutes after 4:00 p.m. she will arrive at her destination.
a. y equals one fourth times x minus 16
b. y = 4x − 16
c. y equals one fourth times x plus 16
d. y = 4x 16
The equation that can be used to calculate how many minutes after 4:00 p.m. she will arrive at her location is y = 4x - 16.
The correct equation is:
y = 4x - 16
This equation represents the number of minutes after 4:00 p.m. the pilot will arrive at her destination. The variable x represents the time, in minutes, of her original flight, and y represents the number of minutes after 4:00 p.m. she will arrive at her destination. The expression "4x" represents the time the pilot will arrive at her destination if she had traveled at her original speed, and the "-16" represents the delay caused by air traffic.
To solve this equation, you would substitute the value of x into the equation and solve for y. For example, if the pilot's original flight time was 60 minutes, the equation would be:
y = 4(60) - 16
= 240 - 16
= 224
This means that the pilot will arrive 224 minutes after 4:00 p.m., or at 6:24 p.m.
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What is the factored form of this expression 6x2 5x − 6 )(?
The factored form of the expression 6x² - 5x - 6 is (3x + 2)(2x - 3) .
The Factored form of quadratic equations means expressing the polynomial as a product of its linear factors. This process allows to simplify quadratic expressions, find their roots and solve further .
The expression is given ; 6x² - 5x - 6 .
= 6x² - 9x + 4x - 6 ,....by using split the middle term method ;
= 3x(2x - 3) +2(2x - 3) ;
= (3x + 2)(2x - 3)
Therefore , the factored form is (3x + 2)(2x - 3) .
The given question is incomplete , the complete question is
What is the factored form of this expression 6x² - 5x - 6 ?
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In ΔQRS, s = 5.2 inches, ∠S=129° and ∠Q=30°. Find the length of r, to the nearest 10th of an inch.
The length of r is 2.4 inches.
What is the law of sines ?
The law of sines specifies how many sides there are in a triangle and how their individual sine angles are equal. The sine law, sine rule, and sine formula are additional names for the sine law.
Given, In ΔQRS, s = 5.2 inches, ∠S=129° and ∠Q=30°
We know that, The sum of all angles of a triangle is 180°.
So, ∠Q + ∠R + ∠S = 180°
∠R = 180° - 129° - 30°
= 21°
Now, We also know that the law of sines specifies how many sides there are in a triangle and how their individual sine angles are equal.
So, q/Sin Q = r/Sin R = s/Sin S
Or, we can say
r/Sin R = s/Sin S
r/Sin 21° = s/Sin129°
r/Sin 21° = 5.2 / Sin 129°
r = 5.2 × Sin 21°/Sin 129°
= 5.2 × 0.46
= 2.4 inches.
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in a class of 240 students at a certain school learn mathematics or English or both.150 learn mathematics and 120 learn English. A.how many students like both subjects. B.find the number of students like mathematics only. C.how many students learn English only.
Answer:
a- 30
b- 90
Step-by-step explanation:
150 learn math
120 learn english
150+120 is 270
270 - 240 = 30
so 30 students learn both.
120 - 30 = 90
so 90 learn english only
get it?
What grade should a 18 year old be in?
According to the given question, we can say that - 18 year old be in the 12th grade as per school requirement .
What is grade?Grading may be done using letters, numbers, percentages, points, or descriptions. The most prevalent grades are in the form of letters, and they usually correspond to a variety of percentages or points. Many people consider "A" and "B" grades to be "good." D and F grades are referred to as "poor grades." Commonly regarded as average is a "C."
We can say that
10th grade = 16 or 17 year old ,
11th grade is = 17 or 18 and 12th grade is = 18 or 19.
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Tess wants to make throw pillows for her couch.she has 6 yards of fabric.each pillow uses 2 over 3 of a yards of fabric.How many pillows can she make?
Tess can make 9 throw pillows from the 6 yards of fabric.
What is an expression?The mathematical expression combines numerical variables and operations denoted by addition, subtraction, multiplication, and division signs.
Mathematical symbols can be used to represent numbers (constants), variables, operations, functions, brackets, punctuation, and grouping. They can also denote the logical syntax's operation order and other properties.
Given that Tess wants to make throw pillows for her couch. she has 6 yards of fabric. each pillow uses 2 over 3 yards of fabric.
The number of pillows will be calculated as,
Number of pillows = 6 ÷ ( 2 / 3 )
Number of pillows = ( 6 x 3 ) / 2
Number of pillows = 9
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[tex](4x + 8) = ...........(x + ............)[/tex]
Some one help me please
Answer:
( 4x + 8) = 4 (x + 2)
Step-by-step explanation:
We have to factor out the GCF
We see that ( 4x+8) have the GCF is 4, so 4 will go outside, and we have left x + 2
So the answer is
(4x+8) = 4 ( x +2)
Is f/x )= 3x² a function?
Answer:
yes.
Step-by-step explanation:
The definition of a function: "A function is defined as a relation between a set of inputs having one output each."
This means each x can only have 1 y value. You can check if this is a function using the vertical line test. To do the vertical line test draw vertical lines through the graph of the expression. If you even hit 2 points with a vertical line it is NOT as function.
The graph is of an upward facing parabola so it will be a function. We can graph and check this with the VLT which it passes.
What is population function?
The term "population regulation" refers to biological mechanisms that balance off disruptive occurrences, such as weather changes, alterations in the environment, the occurrence of disease epidemics, etc.
What role does population growth play?A straightforward equation that depicts population growth is as follows: Expression of Population Changes as a Percentage: Change in Population Size = (Births + Immigration) - (Deaths + Emigration). Let's say we had a population of 100,000 people.
The relative size of two functions' values for big values of the independent variable is what is meant when a term like "function growth" is used.
The term "population regulation" refers to biological mechanisms that balance off disruptive occurrences, such as weather changes, alterations in the environment, the occurrence of disease epidemics, etc.
What role does population growth play?A straightforward equation that depicts population growth is as follows: Expression of Population Changes as a Percentage: Change in Population Size = (Births + Immigration) - (Deaths + Emigration). Let's say we had a population of 100,000 people.
The relative size of two functions' values for big values of the independent variable is what is meant when a term like "function growth" is used.
The term "population regulation" refers to biological mechanisms that balance off disruptive occurrences, such as weather changes, alterations in the environment, the occurrence of disease epidemics, etc.
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Total Monthly Cost ($)
Kyle's Monthly Website Costs
y
160
140
120
100
80
60
40
20
0
2 4 6 8 10 12 14 16
Number of Hours of Video Stored
Which equation shows the relationship between the
number of hours of video Kyle has stored on the
website and his total monthly cost in dollars?
y=10x +4
y = 4x+10
y-10x+0.25
Y=0.25x+10
Answer:
[tex]y=4x+10[/tex]
Step-by-step explanation:
Using the points [tex](8,40)[/tex] and [tex](0,10)[/tex],
[tex]m=\frac{40-10}{8-0}=4.5 \\ \\ \therefore y=4.5x+10[/tex]
This matches most closely with the second option.
When the digits of a two digit numbers are reversed number obtained is 9?
Consequently, the original number is 27 and the reversal is 72.
What are numbers?A number is a numerical unit of measurement and labeling in mathematics.
The natural numbers 1, 2, 3, 4, and so on are the first examples.
Number words are a linguistic way to express numbers.
So, let the ones and tens places' digits be y and x, respectively.
initial value = 10x+y
number in reverse = 10y plus x
In response to the query:
3(10x+y)-9 = 10y+x
30x+3y-9-10y-x= 0
29x-7y-9 = 0 ...(1)
Since the reversed number is greater:
10y+x-(10x+y)=45
10y-y-10x+x-45 = 0
9y-9x-45=0
y-x-5=0
y= x+5 ...(2)
Place equation (2) into equation (1) immediately:
29x-7(x+5)-9=0
29x-7x-35-9=0
22x=44
x = 2
Now enter x=2 into equation (2):
y= 2+5= 7
Therefore, consequently, the original number is 27 and the reversal is 72.
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Correct question:
On reversing the digits of a two-digit number obtained is 9 less than three times the original number. If the difference between these two numbers is 45 find the original number.
How do you insert a 4 quadrant graph in Word?
Open the Word document. then Go to the Insert tab on the ribbon and click on the Chart option under the Illustrations group.
When does a graph represents a function?
A graph represents a function if it has no vertically aligned points, that is, each value of x is mapped to only one value of y.
How do you insert a 4 quadrant graph in Word?
Open the Word document.
Go to the Insert tab on the ribbon and click on the Chart option under the Illustrations group.
An Insert Charts dialog box will appear on the screen.
Select the XY (Scatter) option from the left pane
and pick a line graph that you want to insert.
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−10x−56=4 Solution: x =
Answer:
Step-by-step explanation:
x= -6
Please help AFSP!!!
15 points
I need this by tmrw please
Answer:
Bias from using a convenience sample (C)
Step-by-step explanation:
This sampling method is an example of taking a convenience sample because the mobile phone service provider is only taking samples from the people that responded. The availability of certain people causes a bias in the data drawn from this sampling method.
someone please help, need to finish before finals.
Answer:
Step-by-step explanation:
3. collinear = on the same line. Answer: C
4. A
5. If two lines intersect, they intersect at a point. Answer: Point C
6. B
7. AB + BC = AC
AB + 9 = 22
AB = 13
8. EF + FG = EG
2 + 3 = EG
EG = 5
9. m<MNP + m<PNO = m<MNO
20 + m<PNO = 85
m<PNO = 65
10. m<GHK + m<KHJ = m<GHJ
90 + 31 = m<GHJ
m<GHJ = 121
11. AM = MB = 10
AM = 10
12. EM = MF = (1/2)EF = 14
MF = 14
13. GM + MH = GH
GM = MH = 3.4
3.4 + 3.4 = GH
GH = 6.8
14. m<CAB = m<BAD = (1/2)m<CAD
m<CAD = 40; (1/2)m<CAD = 20
x = m<BAD = 20
15. m<CAB = m<BAD
2y + 25 = 3y
25 = y
y = 25
PLEASE QUICK! What is the sum of 4 3/5+7 8/15?
Enter your answer in the box as a mixed number in simplest form.
Answer: 12 2/15
Step-by-step explanation:
4 3/5 = 23/5
7 8/15 = 113/15
So, we have 23/5 + 113/15. The common factor is 15, so we have
69/15 + 113/15 = 182/15
182/15 = 12 2/15
What property of congruence is used for the statement AB ≅ AB?
The congruence's reflexive characteristic is applied to the statement AB ≅ AB.
In algebra, a number is always equal to itself according to the reflexive property of equality. The equality's reflexive quality. Assuming that an is a number, a = a. a=a. We discovered that anything is equal to itself thanks to the reflexive characteristic of equality. This characteristic's formula is a = a. All numbers are equal to one another, according to this property. For instance, three is three.
In mathematics, a set X's elements are considered to be reflexive if there is a relationship between each one of them. This can be expressed in terms of relations as (a, a) R a X or as I R, where I is the identity relation on A. As a result, it is said to hold reflexivity and to have a reflexive feature. Every angle, every line, and every figure or shape in geometry are congruent to one another according to the reflexive characteristic of congruence. This characteristic is typically employed in proofs of parallel lines and the congruence of two triangles.
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