Mathematics Middle School

GIVING BRAINLIEST BRAINLIEST!!!! Easy mathhh

Answers

Answer 1

Answer:

is D i had this on my math test

Step-by-step explanation:

Answer 2

Answer:

the area is 20 units

Step-by-step explanation:

if you plot the points then draw the rectangle then you count the amount on each side and multiply 4 times 5

Related Questions

Multiply the pairs of numbers and match them with their products. Tiles (-5)(4.2) (-7)(-3) (4) (5) (2.5)(-9) Pairs 22.5 21 -22.5 -21 111

Answers

Here are the pairs matched with their products:

- (-5)(4.2) matches with -21

- (-7)(-3) matches with 21

- (2.5)(-9) matches with -22.5

Pairs (4) and (5) do not have corresponding products in the given options.

The products of the given pairs of numbers are:

(-5)(4.2) = -21

(-7)(-3) = 21

(4)(5) = 20

(2.5)(-9) = -22.5

So, the pairs of numbers and their products are as follows:

(-5)(4.2) = -21 matches with -21.

(-7)(-3) = 21 matches with 21.

(4)(5) = 20 matches with 20.

(2.5)(-9) = -22.5 matches with -22.5.

I hope this helps!

A class is choosing a president, a vice president, and a treasurer.
There are three students running for president: Linda, Ann, and Maria.
There are two students running for vice president: John and Bob.
There are two students running for treasurer: Jessica and Amanda.

Answers

A 12
B 2
C 12.

Hope this helps

(a) twelve
(b) eight
(c) three

What is the probability of rolling a number less than or equal to 5 on a fair number
cube? Justify your answer.

Answers

Answer:

Step-by-step explanation:

The probability of rolling a number less than or equal to 5 on a fair number cube (also known as a fair six-sided die) is 5/6.

Justification: A fair number cube has six sides, numbered 1 through 6. Out of these six numbers, there are five numbers (1, 2, 3, 4, and 5) that are less than or equal to 5. Therefore, the favorable outcomes are 5, and the total possible outcomes are 6. Thus, the probability is 5/6.

The probability is 5/6

help !!!
write the equation of the line.

Answers

Answer:

y = -x + 60

Step-by-step explanation:

From point (0, 60) to point (60, 0), the rise is -60, and the run is 60.

slope = m = rise/run = -1

The y-intercept, b, is 60.

y = mx + b

y = -x + 60

Line is going down so we know x is negative. And it starts at 60

Y= -x+60

what point below is the solution to the expression 2x+y=12
A) (4,2) C) (8,-1)
B) (3,6) D) (0,6)

Answers

The answer is B. If you substitute 3 for x and 6 for y, you get 2(3)+(6)=12, and that simplifies to 6+6=12, which then adds up to 12=12. Hope this helps!

Answer:

Step-by-step explanation:

It's B.

Let's rewrite the expression like this :

2x+y=12 ⇒ y=12-2x

and try given values for x :

if x=4 ⇒ y=12-(2×4)=12-8=4 ( so it is not 2 ) ⇒ wrong if x=3 ⇒ y=12-(2×3)=12-6=6 (it is 6) ⇒ right if x=8 ⇒ y=12-(2×8)=12-16=-4 (so it is not -1) ⇒ wrong if x=0 ⇒ y=12-(2×0)=12-0=12 (so it is not 6) ⇒ wrong

Which circle graph accurately describes the information in the tally chart?

Answers

Answer:

Step-by-step explanation:

Cause the people with more than 30 mins take up 50% of the pie chart your welcome can i get brainlest i need 4 more

The answer is D!! :)

Zoe is 6 years old. Her brother, Langston is 3 years more than twice her age. Write a numerical expression for Langston´s age. can you solve it? give me a like if you solved it and pls friend request me.

Answers

Answer: x 2 + 3 = 15

6 * 2 + 3 which comes to = 15

Write an equation representing the relationship of 10:20 shown in the graph

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10 seed packets grows 20 flowers so 1 seed packet will grow 2 flowers

Answer:

y/2=x

Step-by-step explanation:

if you take the Y axis and dived it by two it will give you your X-axis

please help me, and have a great day!

Answers

Answer: croos multiply=5/10

Step-by-step explanation:

multiply across

Answer:

49/4

12 1/4

Step-by-step explanation:

HELO WORLD PLS HELP ME I NEED HELP SOLVE ASAP

Answers

Answer:

2×(x+y)

Step-by-step explanation:

Graph the image of this figure after a dilation with a scale factor of 2 centered at (2, 2).

Answers

Answer:

(-6,6), (0,12), (4,8)

Step-by-step explanation:

To dilate an object, we need to multiply the x and y values by the given scale factor.

In this case the scale factor is 2 --> 2(x, y)

Before-> After dilation

2(-3,3) = (-6,6)

2(0,6) = (0,12)

2(2,4) = (4,8)

Please leave a 'thanks' if this helps!

An airplane takes 15 minutes to reach its cruising altitude. The plane cruises at that altitude for 90 minutes, and then descends for 20 minutes before it lands. Sketch the graph of the height of the plane over time.

Answers

pretty sure it’s 126

Rita is painting the walls in the playrooms at the daycare center. She estimates that she will need 1/4 gallon of paint for each wall. How many walls can she paint with 5 gallons of paint?

Answers

Answer:

20 walls can be painted.

Step-by-step explanation:

Rita needs to use ¼ a gallon per wall. So, using 1 gallon would result in painting 4 walls.

5 gallons times 4 would be 20.

So, with five gallons, 20 walls can be painted.

5 gallons divided by 1/4= 5 times 4 which equals 20 walls which can be painted with that amount. Hope this short answer helped!

please help!!!!!

Which of the following tables represents a linear relationship that is also proportional?

x y

0 0

4 2

8 4

x y

0 1

2 3

4 5

x y

0 2

3 5

6 8

x y

0 3

6 5

12 7

Answers

8 4
We have learned this about a month ago and from what I can recall 8 4 is the answer

the first table because they have 0,0 and both of them increase by the same amount on either side (0 4 8) and (0 2 4) which makes them proportional and also linear. :)

What is the angle made by the hour hand and the minute of the clock at 8:57

Answers

Answer:

85 degrees

Step-by-step explanation:

The answer to that is 87,5 degrees

HELP PLEASE!!!!!!!

1) A rectangle has a length that is 5 less than four times its width. Find what simplified expression represents the perimeter of this rectangle. (Show work)

Answers

Answer:

10x-10

x-width

Step-by-step explanation:

width-x

4x-5-length

formula for P of rectangle- (a+b)2

(x+4x-5)2

(5x-5)2

=10x-10

Please need help ASAP.

Answers

Answer: in this order angle d, e, f line de, ef, fd

Step-by-step explanation:

Here is your answer to your question

The stem-and-leaf plot displays data collected on the size of 15 classes at two different schools.

Mountain View School Seaside School
0 5, 8
9, 8, 2, 0 1 0, 1, 2, 5, 6, 8
8, 7, 6, 5, 5, 4, 4, 3, 1, 0 2 5, 5, 7, 7, 8
0 3 0, 6
Key: 2 | 1 | 0 means 12 for Mountain View and 10 for Seaside

Part A: Calculate the measures of center. Show all work. (2 points)

Part B: Calculate the measures of variability. Show all work. (1 point)

Part C: If you are interested in a smaller class size, which school is a better choice for you? Explain your reasoning. (1 point)

Answers

To calculate the measures of center, we need to find the mean and median for each school.

For Mountain View School:
Data: 0, 0, 0, 0, 1, 2, 3, 4, 4, 5, 5, 5, 5, 6, 7, 8, 8, 8, 9
Mean: (0 + 0 + 0 + 0 + 1 + 2 + 3 + 4 + 4 + 5 + 5 + 5 + 5 + 6 + 7 + 8 + 8 + 8 + 9) / 19
= 100 / 19
≈ 5.26

To find the median, we need to arrange the data in ascending order: 0, 0, 0, 0, 1, 2, 3, 4, 4, 5, 5, 5, 5, 6, 7, 8, 8, 8, 9.
The median is the middle value, which is the 10th value in this case.
Median: 5

For Seaside School:
Data: 0, 0, 0, 1, 1, 2, 2, 4, 5, 5, 5, 5, 6, 7, 7, 8, 8, 8, 9
Mean: (0 + 0 + 0 + 1 + 1 + 2 + 2 + 4 + 5 + 5 + 5 + 5 + 6 + 7 + 7 + 8 + 8 + 8 + 9) / 19
= 80 / 19
≈ 4.21

To find the median, we need to arrange the data in ascending order: 0, 0, 0, 1, 1, 2, 2, 4, 5, 5, 5, 5, 6, 7, 7, 8, 8, 8, 9.
The median is the middle value, which is the 10th value in this case.
Median: 5

Now let's calculate the measures of variability, specifically the range and interquartile range (IQR).

Range: The range is the difference between the largest and smallest values in the dataset.

For Mountain View School:
Range: 9 - 0 = 9

For Seaside School:
Range: 9 - 0 = 9

Interquartile Range (IQR): The IQR is the difference between the third quartile (Q3) and the first quartile (Q1) and measures the spread of the middle 50% of the data.

For Mountain View School:
Q1 = 3
Q3 = 7
IQR = Q3 - Q1 = 7 - 3 = 4

For Seaside School:
Q1 = 2
Q3 = 7
IQR = Q3 - Q1 = 7 - 2 = 5

To determine which school is a better choice for a smaller class size, we can consider both the mean and the median.

Both the mean and median for Mountain View School are higher than those for Seaside School. This suggests that, on average, the class sizes at Mountain View School are larger than those at Seaside School. Therefore, if you are interested in a smaller class size, Seaside School would be a better choice

Part A:

For Mountain View School:
- Median: The median class size is the middle value, which is 25.
- Mean: The mean class size is the sum of all the class sizes divided by the total number of classes, which is (29 + 28 + 28 + 27 + 25 + 24 + 24 + 23 + 21 + 20 + 19 + 18 + 15 + 13 + 10) / 15 = 21.27.

For Seaside School:
- Median: The median class size is the middle value, which is 20.
- Mean: The mean class size is the sum of all the class sizes divided by the total number of classes, which is (25 + 25 + 27 + 27 + 28 + 28 + 28 + 30 + 31 + 35 + 36 + 38 + 40 + 43 + 45) / 15 = 31.13.

Part B:

For Mountain View School:
- Range: The range is the difference between the largest and smallest values, which is 29 - 10 = 19.
- Interquartile Range (IQR): The IQR is the difference between the third quartile (Q3) and the first quartile (Q1). From the stem-and-leaf plot, we can see that Q1 is 20 and Q3 is 28. Therefore, the IQR is 28 - 20 = 8.

For Seaside School:
- Range: The range is the difference between the largest and smallest values, which is 45 - 25 = 20.
- Interquartile Range (IQR): The IQR is the difference between the third quartile (Q3) and the first quartile (Q1). From the stem-and-leaf plot, we can see that Q1 is 27 and Q3 is 38. Therefore, the IQR is 38 - 27 = 11.

Part C:

If you are interested in a smaller class size, Mountain View School is a better choice for you because it has a lower mean and median class size than Seaside School.

Quadrilateral PQRS is plotted in the coordinate plane. The quadrilateral is dilated by a scale factor of 2/3 to create quadrilateral P’Q’R’S’. Write three statements that compare quadrilateral PQRS and quadrilateral P’Q’R’S’.

Answers

Answer:

They are similar to each other.They are not congruent.the surface area is different for each one.

Step-by-step explanation:

Q -> Q' (-3,4) -> (-2,2.666666)

-3*2/3=-2 $4*\frac{2}{3} = 2\frac{2}{3}$

P -> P' (-5,1) -> (-3.333333, .666666

$-5 *\frac{2}{3} = -3\frac{1}{3}$ $1*\frac{2}{3} = \frac{2}{3}$

R -> R' (-3,-3) -> (-2,-2)

$-3*\frac23 = -2$

S -> S' (-5,-1) -> (-3.333333,-.666666)

$-5*\frac23 = -3\frac13$ $-1 *\frac23 = -\frac23$

Please help me out here!

Answers

1.25

4•1.25 = 5

Hope this helps!

Answer: 1.25

Step-by-step explanation:

Scale factor means how much it has enlarged.

4 to 5 means you have to divide 5 by 4/

5/4=1.25

That means the scale factor has enlarged by 1.25

Hope that helps! Please make me Brainliest!

please help me
What are the coordinates of the vertex of the function f(x) = x2 − 12x + 5?

(6, 31)
(−6, 31)
(6, −31)
(−6, −31)

Answers

Answer:

This means that the coordinates of the vertex of the function are $(6,-31)$

Step-by-step explanation:

To find the x-coordinate of the vertex of a quadratic function, we can use the formula:

$x=\frac{-b}{2a}$

We are given the function $f(x)=x^2-12x+5$

In this function, $a=1$ and $b=-12$

Now we can input these values into our formula

$x=\frac{-(-12)}{2(1)} \\\\x=\frac{12}{2} \\\\x=6$

This means that the x-value of the vertex is located at $x=6$. To find the other half of the coordinate pair, we can now plug $x=6$ into the given function

$f(6)=(6)^2-12(6)+5\\\\f(6)=36-72+5\\\\f(6)=41-72\\\\f(6)=-31$

This means that the coordinates of the vertex of the function are $(6,-31)$

Can anyone make an explaination?

Answers

Answer:

It is point c

Step-by-step explanation:

ok so the coordinates are always (x,y) so therefore if X is 0 then it stays in the middle of the graph and doesn't go anywhere. since Y is -3, y always goes down or up. so if it goes down then it is negative. up is always positive. same with x. X is always horizontal so if it moves right, it is positive and left (backwards) is negative. hope this helps and isn't confusing. *Also, since it's -3, then it goes down negative 3 units. *

Answer:

Step-by-step explanation:

In the coordinate (x,y), x refers to the place of point above the horizontal line while y represents the place of point in the side to its vertical lines.

Here, x is 0, that means it is lying on y line and y is -3, that means it's lying in 3rd quadrant. So, point C matches them completely. That's why the correct answer is C.

Hope it helped. Pls mark me the BRAINLIEST! Any questions ask in comments :)

if ximena eats 2/3 of a pizza and lola eats 1/2 of a pizza,how much did they eat together

Answers

Step-by-step explanation:

2/3 = 4/6

1/2 = 3/6

3/6+ 4/6 = 7/6

7/6= 1 ⅙

Answer: 1 1/6 pizzas

Step-by-step explanation:

the sum of two numbers is 66 and their difference is 4. find the numbers

Answers

31 & 35

x + (x+4) = 66
2x + 4 = 66
2x = 62
x = 31

one number is x and the other is x+4
31 & 35

Pls explain how to do this i need to find the years.

Answers

Answer:

4 years

Step-by-step explanation:

8.75% of 15,500 is 1,356.25

1,356.25 x 4= 5,425

hope this helped

4 years look at symbolab we can help

Pls help me it’s due tomorrow

Answers

Here is an example of how to draw an isosceles trapezoid:

_______

/ \

/_________\

In this trapezoid, the two parallel sides (the top and bottom sides) are of equal length, and the two non-parallel sides (the left and right sides) are also of equal length. The angles between the top and left sides and between the top and right sides are equal, as are the angles between the bottom and left sides and between the bottom and right sides.

What is an isosceles trapezoid?

An isosceles trapezoid is a type of trapezoid where the two non-parallel sides of the trapezoid are of equal length. This means that the trapezoid has a line of symmetry through its mid-point, which divides the trapezoid into two congruent triangles. The two parallel sides of an isosceles trapezoid are also referred to as bases, and the height of the trapezoid is the perpendicular distance between the two bases.

Because an isosceles trapezoid has two congruent triangles, the angles opposite these sides are also congruent. Therefore, an isosceles trapezoid has two pairs of congruent angles, with each pair containing one acute angle and one obtuse angle. The acute angles are located adjacent to the parallel sides, while the obtuse angles are located adjacent to the non-parallel sides.

Isosceles trapezoids have several interesting properties, including that the diagonals of an isosceles trapezoid are congruent, and that the diagonals bisect each other. Additionally, the length of each diagonal can be found using the Pythagorean theorem, and the area of an isosceles trapezoid can be determined using the formula:

Area = ((a + b) / 2) * h

Where "a" and "b" are the lengths of the two parallel sides (bases) and "h" is the height of the trapezoid.

PART B:

An isosceles trapezoid is a quadrilateral with two parallel sides (the bases) and two non-parallel sides of equal length. A parallelogram is also a quadrilateral with two pairs of parallel sides.

An isosceles trapezoid can be thought of as a special case of a parallelogram where one pair of opposite sides is shorter than the other pair. In fact, if you extend the non-parallel sides of an isosceles trapezoid until they intersect, you will get a parallelogram with the same base and height as the original trapezoid.

Conversely, if you take a parallelogram and draw a line segment parallel to one pair of opposite sides, you will get an isosceles trapezoid. This means that every isosceles trapezoid can be thought of as a parallelogram with a missing piece, and every parallelogram can be thought of as an isosceles trapezoid with extra pieces added on.

So, in summary, isosceles trapezoids and parallelograms are related in that isosceles trapezoids can be thought of as special cases of parallelograms, and parallelograms can be thought of as isosceles trapezoids with extra pieces added on.

PART C:

No, we cannot use the term "isosceles" to describe a rectangle because a rectangle, by definition, has four right angles and opposite sides that are parallel and congruent to each other. An isosceles trapezoid, on the other hand, has only one pair of parallel sides and two non-parallel sides that are congruent to each other.

The term "isosceles" is typically used to describe triangles or trapezoids where two sides are congruent to each other. In an isosceles triangle, two sides are equal in length, while in an isosceles trapezoid, two non-parallel sides are equal in length. However, in a rectangle, all four sides are equal in length, not just two.

Therefore, while we can describe a rectangle as having all sides congruent to each other, we cannot describe it as an isosceles rectangle because "isosceles" implies only two sides are congruent, which is not the case for a rectangle.

Learn more about Isosceles triangles/shapes:

https://brainly.com/question/29618252

#SPJ1

PartB. The parallelogram is a quadrilateral that has both pair of opposite sides parallel. The isosceles trapezoid whose legs have the same length. Long story short, parallelograms can’t be be and aren’t isosceles trapezoids.
PartC, No, a triangle can because the “legs” are the same size and aren’t parallel.
PartA

Solve the equation.
c²=41

Answers

Answer:

5:12

Solving quadratics by taking square roots examples (video)

Step-by-step explanation:

just watch the video, should help

5:12 will be your answer to the question

A store pays $2 per pound for popcorn kernels. One cubic foot of kernels weighs about 45 pounds. What is the selling price of the container shown when the markup is 30%?

Answers

It would be 117 because 45x2 is 90 and 30% of 90 is 27 so 90+27 is 117

117 is the correct answer.

Which number sentence is true?

Answers

Change your answer to b, the square root of 32 is 6 which is more than 4.8

B, the square root of 32 is like 5.6, which is heater than 4.8

Tisha and her academic team are working to go to state finals. They must have a certain number of points, T, to advance. They have had three local matches, b, c and d, and will attend a district match. District match points count for four times the number of points than local matches do. Choose the equation that would help Tisha find how many points they need to earn in the district match, a, to advance. a equals T over 4 minus b minus c minus d a equals T minus b minus c minus d all over 4 a equals T plus b plus c plus d all over 4 a = 4(T − b − c − d)

Answers

4.0/5

Ashraf82

b equals T minus a minus c minus d all over 3 ⇒ 3rd answer

Step-by-step explanation:

* Lets explain how to solve the problem

- Tisha and her academic team have had three local matches

# Assume that the points of the local matches are a , c , d

- They will attend a district match

- District match points count for three times the number of points

than local matches do

# Assume that the points of the district match is b

- T is the total points they will earned in the four matches

∵ The points in the local matches are a , c , d

∵ The point in district mach is 3b

∴ T = a + c + d + 3b

* Lets find b in terms of a , c , d , T

∵ T = a + c + d + 3b

- Subtract a from both sides

∴ T - a = c + d + 3b

- Subtract c from both sides

∴ T - a - c = d + 3b

- Subtract d from both sides

∴ T - a - c - d = 3b

Other Questions

Complete the following definition in French:Quand beaucoup de personnes se rassemblent (get together) dans la rue pour protester quelque chose, ils organisent une __________________. What is a voting-eligible population? mga pangyayari sa akdang nagpapakita ng pagpapahalaga sa mga kaugalian at kulturang pilipino mula sa iba't ibang rehiyon Ob) False13. Which statement(s) about the rolling technique is/are true?a) The forward motion of the blade cuts the food.b) The backward motion of the blade cuts the food.c) The blade moves in a circular motion.d) Both a) and b) are true.e) Both a) and c) arba true.14. The up and down technique is more appropriate than the rolling technique forfoods that are: P7-1: Dime a Dozen Diamonds makes synthetic diamonds by treating carbon. Each diamond can be sold for $170. The materials cost for a synthetic diamond is $110. The fixed costs incurred each year for factory upkeep and administrative expenses are $1,250,000. The machinery costs $1.21 million and is depreciated straight-line over 10 years to a salvage value of zero.a. What is the accounting break-even level of sales in terms of number of diamonds sold?b. What is the NPV break-even level of sales assuming a tax rate of 35%, a 10-year project life, and a discount rate of 12%? (Do not round intermediate calculations. Round your final answer to the nearest whole number.) Please help I will give brainliest Identify the slope using thefollowing two points: (-1, 6) and(-3, 10) Use the claim history data below to answer the questions below. Assume all claims are paid by the end of the 3rd year following the accident year (so, for example, there will be no further paid claims for the 2017 Accident Year after 2020).Accident Cumulative PAID claims history through end of:Year 2017 - 20202017200 450 1000 11002018150 350 12002019300 7502020250Consider which format is shown here and how to format for analysis. This is the format usedmore often by health actuaries.a. What was the total amount of claims payments during 2019?b. What is the 2nd to 3rd period link ratio for the 2017 accident year?c. What is the estimate of ultimate loss for accident year 2019?d. Assuming these are the only paid claims (i.e., the company did not existbefore 2017), use the paid development method discussed in class to determine the loss reserves at the end of 2020 for each accident year and in total for all accident years combined. Which two-digit year will excel identify as in the twenty-first century and not the twentieth? Although both eukaryotes and prokaryotes are capable of causing infectious diseases in humans, eukaryotes are unique because they have a/an: Wild & Scenic River Tours, Inc., is a corporation. Wild & Scenic has the implied power to a. issue stocks and bonds. b. execute contracts and negotiable instruments. c. buy and sell (or lease) property. d. perform all acts reasonably appropriate and necessary to accomplish its corporate purposes. an integer , with , is to be chosen. if all choices are equally likely, what is the probability that at least one digit of is a ? who was king of basketball true or false? your crm database is available to only the marketing team so that contact information is not shared between the sales and service teams. 1. In both the male and female cath, identify structures that hure a urogcritil function. a. Male cat b. 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Note 2: On August 1 of the current year, to meet a cash shortage, Warren Corporation obtained a $36,000,5 percent loan from a local bank. The principal of the note and interest expense are payable at the end of six months. Required: For the relevant transaction dates of each note, indicate the amounts and direction of effects on the elements of the statement of financial position and the statement of earnings. (Reminder: Assets = Liabilities + Shareholders' equity; Revenues - Expenses = Net earnings; and net earnings accounts are closed to retained earnings, a component of shareholders' equity) (Do not round intermediate calculations. Enter any decreases to account balances with a minus sign.)