3 years ago

A rectangle has a base of 5 cm and a height of (x + 2)cm. Its area is 20 cm ^ 2. What is the value of x?

Mathematics

1 answer:

Len [333]3 years ago

3 0

So area is base x height:
5(x+2)=20
5x+10=20
5x=10
x=2
its A

You might be interested in

I need a answer to equation -2x=8

valkas [14]

Answer:

x = -4

Step-by-step explanation:

Divide both sides by -2.

x= - 8/2

Simplify - 8/2 to -4.

4 0

3 years ago

Which statement best describes how to create the graph below from parent function? Help please

stealth61 [152]

Answer:

Step-by-step explanation:

6 0

2 years ago

Read 2 more answers

Select the correct answer. What are the intercepts of y = 4x − 2?

ValentinkaMS [17]

x-intercept(s): (1/2, 0) or (0.5, 0)

y-intercept(s): (0, −2)

8 0

3 years ago

Read 2 more answers

Chris ran two miles in physical education class. How many feet did Chris run? A. 15,840 ft B. 11,560 ft C. 10,560 ft D. 2,640 ft

Arada [10]

Answer:

10,560

Step-by-step explanation:

7 0

3 years ago

Read 2 more answers

Find the cube roots of 8(cos 216° + i sin 216°).

Tomtit [17]

$z^3=8(\cos216^\circ+i\sin216^\circ)$
$z^3=2^3(\cos(6^3)^\circ+i\sin(6^3)^\circ)$
$\implies z=8^{1/3}\left(\cos\left(\dfrac{216+360k}3\right)^\circ+i\sin\left(\dfrac{216+360k}3\right)^\circ\right)$

where $k=0,1,2$ . So the third roots are

$z=\begin{cases}2(\cos72^\circ+i\sin72^\circ)\\2(\cos192^\circ+i\sin192^\circ)\\2(\cos312^\circ+i\sin312^\circ)\end{cases}$

5 0

3 years ago