Mathematics Middle School

The volume of a right square pyramid is 7 yd.. If the lengths of the sides of the base are multiplied by 5 and the height does not change, what is the volume of the new pyramid?
A) 25 yd.
B) 35 yd.
C) 125 yd.
D) 175 yd.
Its D
I took the test

The radius of the base of a right circular cone is 7 times greater than the radius of another right circular cone. If the heights of both cones are the same, what is the volume of the larger cone divided by the volume of the smaller cone?
A) 7
B) 14
C) 28 It's D
D) 49

The surface area of a right circular cone is 15π in.. The cone is enlarged by multiplying both the radius of the base and the slant height by 4. What is the surface area of the new cone?
A) 80π in. It's D
B) 120π in.
C) 60π in.
D) 240π in.

A right circular cone has a volume of 25π ft.. If the radius of the cone is doubled but the height remains fixed, what is the volume of the resulting larger cone?
A) 400π ft.
B) 100π ft. It's B
C) 75π ft.
D) 50π ft.
The base of a right circular cone has a radius of 8 cm and a slant height of 12 cm. If the radius and the slant height of the right circular cone are each multiplied by 9, what is the surface area of the new cone divided by the surface area of the original cone?
A) 96
B) 81 It's B
C) 72
D) 18
The lengths of the sides of the base of a right square pyramid and its slant height are doubled. What is the surface area of the larger pyramid divided by the surface area of the smaller pyramid?
A) 16
B) 8
C) 4
D) 2 It's C

A right circular cone has a volume of 30π m. If the height of the cone is multiplied by 6 but the radius remains fixed, which expression represents the resulting volume of the larger cone?
A) 6 + 30π m
B) 6 x 30π m It's B
C) 6 x 30π m
D) 6 x (30π) m

A right square pyramid has a surface area of 80 m. If the lengths of the sides of the base and the slant height of the pyramid are multiplied by 5, what is the surface area of the new cone?
A) 2000 m It's A
B) 1600 m
C) 800 m
D) 400 m

The height of a right square pyramid is multiplied by 6, but the area of the base remains fixed. What is the volume of the taller pyramid divided by the volume of the shorter pyramid?
A) 3
B) 6
C) 9
D) 12 Don't know but it is not D


The radius of the base of a right circular cone is 4 in., and its slant height is 15 in. If the radius and the slant height are each multiplied by 6, by what factor is the surface area multiplied?
A) 6
B) 9
C) 12
D) 36 it's D

Answers

Answer 1
Answer:


Explanation

D
Answer 2
Hi I believe I know the answer it’s D because I remember doing a test on this .TIANA

Related Questions

THIS IS VERY ERGENT PLEASE HURRY

Answers

Answer:

96 - 3 would be 93 so i'd assume the percent change is 3%

Step-by-step explanation:

Just my head talking

Answer:

-3.125%

Step-by-step explanation:

[tex]\frac{(V^{2} -V^{2} )}{|V1|} x 100[/tex]

Referring to the figure, what is the slope of the
line?

Answers

[tex] \frac{(1120 - 0)}{(16 - 0)} = \frac{1120}{16} = 70[/tex]

70 is the slope

The answer would definitely 70 because the slope is 70

help.... I gotta turn in 28 minutes

Answers

Answer:

ask your teacher for help

Step-by-step explanation:

Apple bottom jeansss

AngieTheNobody, if you see this, pls answer, also FWEE POINTS Whats is 94657849 X 57494

Answers

Answer:

5,442,258,370,406 is the answer

Which equation represents the line through (4, -6) and (0, 2)?
Ill give brainlest to first RIGHT ANSWER.

Answers

Answer:

[tex]y=-2x+2[/tex]

Step-by-step explanation:

Hi there!

Linear equations are typically organized in slope-intercept form: [tex]y=mx+b[/tex] where m is the slope and b is the y-intercept (the value of y when x=0).

1) Determine the slope (m)

[tex]m=\displaystyle\frac{y_2-y_1}{x_2-x_1}[/tex] where two points that fall on the line are [tex](x_1,y_1)[/tex] and [tex](x_2,y_2)[/tex]

Plug in the given points (4, -6) and (0, 2):

[tex]m=\displaystyle\frac{-6-2}{4-0}\\\\m=\displaystyle\frac{-8}{4}\\\\m=-2[/tex]

Therefore, the slope of the line is -2. Plug this into [tex]y=mx+b[/tex]:

[tex]y=-2x+b[/tex]

2) Determine the y-intercept (b)

The y-intercept occurs when x=0. We are given that (0,2) falls on the line, so therefore, 2 is the y-intercept. Plug this into [tex]y=-2x+b[/tex]:

[tex]y=-2x+2[/tex]

I hope this helps!

Answer:

y = - 2x + 2

Step-by-step explanation:

The equation of a line in slope- intercept form is

y = mx + c ( m is the slope and c the y- intercept )

Calculate m using the slope formula

m =

with (x₁, y₁ ) = (4, - 6) and (x₂, y₂ ) = (0, 2 )

m =  =  =  = - 2

The line crosses the x- axis at (0, 2 ) ⇒ c = 2

y = - 2x + 2 ← equation of line

Find the Factors of 18 and 30

A
18: 1, 2, 3, 6, 9, 18

30: 1, 2, 3, 5, 6, 10, 15, 30

B
18: 18, 24, 36, 42, 56

30: 30, 40, 50 ,60, 70

C
18: 2, 4, 5, 7, 9

30: 2, 4, 5, 6, 7, 8, 9, 10, 11

Answers

Answer:

A

Step-by-step explanation:

18=1×18=18

2×9=18

. 3×6=18

6×3=18

9×2=18

18×1=18

30=1×30=30

2×15=30

3×10=30

5×6=30

6×5=30

10×3=30

15×2=30

30×1=30

plz help im an idiot

Answers

Answer:

3.)138

4.) 149

Step-by-step explanation:

you add the two inside measures together.

Answer:

3- 42, 4- 137

Step-by-step explanation:

<1+<2+x=180

93+45+x=180

x=180-93-45

x=42

<1+<2+<3=180

43+106+<3=180

<3=180-106-43

<3=31

<3+x=180

43+x=180

x=180-43

x=137

A square room has an area of 14,400 square
inches. What is the length of a side of the
room in inches?

Answers

Answer:

120 inches

Step-by-step explanation:

The area for formula is [tex]A=l*w[/tex], where A is area, l is the length, and w is the width.

However, since it's square room, you can just multiply the length times itself. This makes the formula [tex]A=l^{2}[/tex].

Now you can substitute 14,400 for A, since that's the area. this brings us to [tex]14400=l^{2}[/tex]. To solve the equation, just find the square root of both sides.

The square root of [tex]l^{2}[/tex] is l.

The square root of 14400 is 120. (I used a calculator for this.)

(BTW, a square root is the number that can be squared to get to a number. For example, the square root of 25 is 5, because 5 times 5 is 25. The square root of 14400 is 120, because 120 times 120 is 14400.)

Answer:

120 INCHES IS THE SIZE OF THE ROOM.

Step-by-step explanation:

120 is the answer because A(Area) = L(Length) x W(Width)

The area for formula is , where A is area, l is the length, and w is the width.

However, since it's square room, you can just multiply the length times itself. This makes the formula .

Now you can substitute 14,400 for A, since that's the area. this brings us to . To solve the equation, just find the square root of both sides.

The square root of  is l.

The square root of 14400 is 120. (I used a calculator for this.)

(BTW, a square root is the number that can be squared to get to a number. For example, the square root of 25 is 5, because 5 times 5 is 25. The square root of 14400 is 120, because 120 times 120 is 14400.)

Find my number, if it is a two-digit one, one of its digits is 9.
and it has remainder O when divided by 6.

Answers

Answer:

96?

Step-by-step explanation:

96/6=16 remainder 0

has a 9 in it

2 digit

Answer:

the number is 90

Step-by-step explanation:

It is a two digit number

it has nine

and leaves a remainder 0 when divided by 6

5 + 7 x 7 + 8
( f233 p01n75)
(1k 7h1s b7w)

Answers

Answer:

Step-by-step explanation:

62

I don’t know the answer to this pls help

Answers

Answer: B Explanation: B

Could someone please help me with this problem?
Graph the equation y=-x^2+4x-3 on the accompanying set of axes. You must plot 5 points including the roots and the vertex.

Answers

Start by making a table.. it makes getting the vertex, roots, and graph easier :)

Find two fractions that are equivalent to 1/9=2/18

Answers

Answer:

4/36 and 8/72

Step-by-step explanation:

4/39 and 8/72. Hope this help

Caroline has a discount card that gives her 4% off the purchase of each pizza.If p is the cost of a regular pizza, how much does caroline pay for her pizza?

A. p - 0.4
B. 0.96p
C. p - 0.04
D. 1 - 0.04p

Answers

Answer:

C.

Step-by-step explanation:

When you transfer 4% into a decimal, it equals 0.04, and p is the cost of a regular pizza, so you subtract 0.04 from p!

Please mark me as brainliest if this was helpful.

C. p-0.04 sana makatulong

Create a two step inequality that includes a rational number (fraction) with a solution set of x greater than 7. thanks

Answers

Answer:

fjhgfdygigg4ihjtr

Step-by-step explanation:

4x + 1/2 > 57/2
subtract 1/2 from both sides
4x > 28
divide by four
x > 7

Below is a magic square, meaning that the sum of the numbers in each row, in each column, and in each of the 2 main diagonals are equal. What is the value of n?

Answers

Basically, in a 3 × 3 magic square, the sum of the numbers in each row, in each column, and in each of the 2 main diagonals, is 15.So, let us consider the first row.(n + 2) + 1 + n = 15or, 2n + 3 = 15or, 2n = 15 - 3or, 2n = 12or, n = 6

Answer:

The value of n is 6.

Hope you could get an idea from here

Doubt clarification - use comment section.

At the mini-mart, Kathy spent $1.39 for a muffin, $2.99 for milk, and $0.99 for a bag of chips. About how much did he spend?

Answers

He spent $5.37 in total for the muffin, chips, and milk.

Answer:

He spent $5.37 in total.

A supermarket had bags of red apples for $27.09 for 7. The also had bags of green apples priced at $14.96 for 4. Which type of apple is most expensive?

Answers

Answer:

Red

Step-by-step explanation:

RED:

$27.09 / 7 = $3.87

GREEN:

$14.96 / 4 = $3.74

$3.87 > $3.74

write an expression to show the total volume of the two boxes i-ready

Answers

Answer:

The answer is 512 in³.

Step-by-step explanation:

The formula for the volume of the box is V = s³.

Since 8 is the side length, substitute s for 8 in the formula: V = 8³.

8³ is the same as 8×8×8, which is equal to 512.

Therefore, the answer is 512 in³.

Hope this helps!

The expression to show the total volume of the two boxes is 512 in.³

What is volume of cube?

The volume of a cube is defined as the total number of cubic units occupied by the cube completely. A cube is a three-dimensional solid figure, having 6 square faces. Volume is nothing but the total space occupied by an object.

a) In the given figure, volume of bigger box is s³ and the volume of smaller box is 100 in.³

Total volume =s³+100

b) The volume of larger box has a side length of 8 inches

Now, s³

Where, s is edge, s=8

Volume =8³

= 512 in.³

Therefore, the expression to show the total volume of the two boxes is 512 in.³

Learn more about the volume of a cube here:

https://brainly.com/question/11168779.

#SPJ2

i need help on this 4

Answers

Answer:

5 gallons

31.05 dollars

jon

free shipping

Answer:

So do I

Step-by-step explanation:

Referring to the Fig. in Question #38, find the unknown
length y. (Do not use a calculator to
approximate your answer. Give the exact answer.)

Answers

Answer:19

Step-by-step explanation:

both sides are equal

It is 19 because both sides are equivalent

Determine a área total e perímetro da figura a seguir:

Apresente os cálculos.

Answers

Answer:

Área: 6x2=12, 2x3=6, 10x3=30, 30+6+12=48; área = 48

Perímetro: 10+3+6+2+6+5+2+3+2+3=42; perímetro = 42

2. Put the following fractions in order of size, starting with the one with the least value:
3 /4, 9 /16, 3 /16, 7/ 8, 3/ 8

Answers

Answer:

3/16, 3/8, 9/16, 3/4, 7/8

if you convert all this fractions into 16's you'll be able to see that this is the order from least to greatest.

3/8=6/16

3/4=12/16

7/8=14/16

Answer:

ok

Step-by-step explanation:

3/16    9/16    3/8  3/4   7/8

Jamar works at Jay's Jeweler. He earns $385 a week plus commission. Last week his sales totaled $1,680. If his commission is 25%, how much did he earn, in total, last week?

Answers

$805

25% of $1,680 is $420 .
$420+$385= $805
Answer
$710.75
Explanation
$1,680 - $385 = $1,295
25% of $1295 = $323.75

Sarah babysits her neighbor's son to make money. Her earnings can be represented by the equation
M = 9h
where M is the money she earns and h is the hours she babysits.

Samara babysits her cousin to make money. Her earnings can be represented by the graph.

Answers

Answer:

27

Step-by-step explanation:

Due to the fact that M=9h you must do M=9(3).

M stands for the amount of money that Sarah will receive for babysitting. H stands for the amount of hours Sarah is babysitting. $9 is the amount of money Sarah makes per hour.

You get the number 3 by seeing where the blue dot is and scrolling down.

Therefore, M=9(3)

The answer is 27

Naomi works in a music shop and earns $42 per day. She earns an extra $2 for each CD she sells. If Naomi wants to earn at least $80 per day, which inequality shows the minimum number of CDs, n, that she should sell?

42 + 2n ≤ 80, so n ≤ 19
42 + 2n ≥ 80, so n ≥ 19
42 + 2n ≥ 80, so n ≥ 36
42 + 2n ≤ 80, so n ≤ 36

Answers

42 + 2n < 80, so < 36 I think…
number 3 is the answer


What fraction is represented in the picture below?



A.
B.
C.
D.


Pls help quick

Answers

Answer:

C

Step-by-step explanation:

Each of the circles are cut into 1/4 pieces. when we have 9 1/4 pieces, our fraction is 9/4, which simplifies into 2 1/4.

I really need help on this assessment!

It says: in Texas, three armadillos ate 50 pounds of insects in one night. I have this rate, how many pounds of insects could 18 armadillos eat and one night?

Answers

Answer: In one night, 18 armadillos could eat 300 pounds of insects.

Step-by-step explanation: Knowing that 18 divided by 3 is equal to 6, you have to multiply the pounds of insects eaten by 3 armadillos by 6.

What is the value of 4 squared + (5-2) (-6)?
a)–34
b) –2
c) 10
d) 34

Answers

The correct answear is b) (-2). Hope I helped u!

I need help plssssssssssssssssssssss

Answers

Answer:

Step-by-step explanation:

Given:

325 pages

90,000 words

Recommended  reading: 200 words/ 1 minute

How many words on each page ?

90,000 words /325 pages ≈ 277 words / 1 page

Now see the picture.

The numbers for the difference I round them to the nearest word.

Answer:

it is blurry

Step-by-step explanation:

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