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3 years ago

Solve for x. 2x-4 = 2x ------ ------- 10 20

1 answer:

8 0

Well this is the way i found an answer.

2x+-4=2x
--------- -----= -2x 2x
----- ---- = -5x+ 10x= 5x
10 20 10 20

So im pretty sure the answer will be x=5 but im not 100% sure.

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The object below was made by placing a cone on top of a cylinder. The base of the cone is congruent to the base of the cylinder.

Ber [7]

Answer:

Part 1) The volume of the object is $32\pi\ cm^{3}$ or $100.48\ cm^{3}$

Part 2) see the procedure

Step-by-step explanation:

The picture of the question in the attached figure

Part 1) What is the volume, in cubic centimeters, of the object?

we know that

The volume of the object is equal to the volume of the cylinder plus the volume of the cone

Find the volume of the cone

The volume of the cone is equal to

$V=\frac{1}{3}\pi r^{2} h$

we have

$r=4/2=2\ cm$ -----> the radius is half the diameter

$h=3\ cm$

substitute the values

$V=\frac{1}{3}\pi (2^{2})(3)=4\pi\ cm^{3}$

Find the volume of the cylinder

The volume of the cylinder is equal to

$V=\pi r^{2} h$

we have

$r=4/2=2\ cm$ -----> the radius is half the diameter

$h=(10-3)=7\ cm$

substitute the values

$V=\pi (2^{2})(7)=28\pi\ cm^{3}$

Part 2) Then explain how you found the volume of the total shape

The volume of the total shape is equal to the volume of the cylinder plus the volume of the cone

$4\pi\ cm^{3}+28\pi\ cm^{3}=32\pi\ cm^{3}$ ------> exact value

Find the approximate value of the volume

assume

$\pi=3.14$

$32(3.14)=100.48\ cm^{3}$

7 0

3 years ago

Read 2 more answers

What is the opposite of the opposite of the opposite of 29?

Bond [772]

Answer:

-29

Step-by-step explanation:

First opposite: -29

Second opposite: 29

Third opposite: -29

3 0

3 years ago

If 5x +1/2_< 25 what is x?

Rudiy27

Answer:

x ≤ 4.9

Step-by-step explanation:

5x +1/2≤ 25

Multiply each side by 2 to get rid of the fractions

2(5x +1/2)≤ 25*2

10x +1 ≤ 50

Subtract 1 from each side

10x+1-1 ≤50-1

10x ≤ 49

Divide by 10 on each side

10x/10 ≤ 49/10

x ≤ 4.9

8 0

4 years ago

Determine the slope of the line that contains the points A(0, 2) and B(7,3). *

IgorC [24]

<h3>Given points:-</h3>

A (0,2)
B (7,3)

We know that

${\boxed{\sf Slope_{(m)}=\dfrac {y_2-y_1}{x_2-x_1}}}$

Substitute the values

$\qquad\quad {:}\longrightarrow\tt m=\dfrac {3-2}{7-0}$

$\qquad\quad {:}\longrightarrow\tt m=\dfrac {1}{7}$

$\therefore \sf Slope\:of\:the\:line\:is\:\dfrac {1}{7}$

5 0

3 years ago

A Crayon has a mass of 10.0 g and volume of 5.0mL. What is the density?

valentinak56 [21]

Answer:

2 gram/milliliter or 2000 kilogram/cubic meter

Step-by-step explanation:

ρ = m/ V

= 10 gram/ 5.0 milliliter

= 2 gram/milliliter

= 2000 kilogram/cubic meter

4 0

3 years ago