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4 years ago

7v=2v-20 what is the answer

1 answer:

7 0

7v = 2v - 20

First, subtract 2v from both sides. / Your problem should look like: 7v - 2v = -20
Second, simplify 7v - 2v to 5v. / Your problem should look like: 5v = -20
Third, divide both sides by 5. / Your problem should look like: v = $- \frac{20}{5}$
Fourth, simplify $\frac{20}{5}$ to 4. / Your problem should look like: v = -4

Answer: v = -4

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Select the solid whose cross sections are dilations of some two-dimensional shape using a point directly above the shape as a ce

s2008m [1.1K]

Answer:

Cone

Step-by-step explanation:

Options:

a) Cone b) Cube c) Cylinder d) Triangular prism

From the given options (a) to (d), option (a) is true.

This is so, because.

The volume (V) of a cone is:

$V_1 = \frac{1}{3}\pi r^2h$

This is as a result of dilating the cylinder by 1/3 whose volume is:

$V_2 = \pi r^2h$

In other words:

$V_1 = \frac{1}{3}V_2$

<em>i.e. the cross-section of the cylinder (V2) being dilated by 1/3 (which is between 0 and 1) gives the cone (V1)</em>

6 0

3 years ago

Please help me ASAP

ryzh [129]

the answer is the 3rd opiton

5 0

3 years ago

Read 2 more answers

If e || f and a || b, what is the value of y. *

Blizzard [7]

Answer:

y = 90

Step-by-step explanation:

Since, e || f and a || b

Therefore, quadrilateral so formed is a rectangle.

Each angle of a rectangle is right angle.

$\therefore \: y \degree = 90 \degree \\ \\ \huge \red{ \boxed{ \therefore \: y = 90}} \\ \\$

3 0

3 years ago

Correct answers only please!

alina1380 [7]

Answer:

10.50 is the interest

Step-by-step explanation:

B = p(1 + r)^t

P = 50

r = .10

t = 2

B = 50(1 + .1)^2

= 50(1.1)^2

= 50(1.21)

= 60.5

But we want to know the interest and this is the balance

60.5- 50 = 10.5

4 0

4 years ago

What is the slope of the linear equation represented by the table. NEEDED PLSS

kramer

Answer:28/4

Step-by-step explanation:

Change of y over the change of x.

Y is +28

X is +4

4 0

3 years ago