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3 years ago

Write 2³ in simplified form

2 answers:

8 0

The answer is: 8
The 3 will represent how many times you need to multiple 2.
Example: 2x2x2=
First multiple 2x2=4
Then multiple 4x2= 8

DIA [1.3K]3 years ago

6 0

Answer:

Step-by-step explanation:

2^1 = 2×1 = 2

2^2= 2×2= 4

2^3= 2×2×2= 8

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Find the angle of rotation about the center of the regular pentagon that maps A to E

pav-90 [236]

Answer:

C 288

Step-by-step explanation:

using counter clockwise rotation

360/5 x 4 =288

6 0

4 years ago

Sin(cos^-1 x)<br><br> how to solve?

tatiyna

Answer:

$sin(cos^{-1}x)=\sqrt{1-x^2}$

Step-by-step explanation:

let us assume

$cos^{-1} x=\theta\\x=cos\theta\\$

now

$sin(cos^{-1}x)$ can be written as $sin\theta$

we know $sin^2\theta+cos^2\theta=1$

so $sin^2\theta=1-cos^2\theta$

$sin\theta=\sqrt{1-cos^2\theta}$

now from above equation we can say that

$sin\theta=\sqrt{1-x^2}$

$sin(cos^{-1}x)=\sqrt{1-x^2}$

7 0

3 years ago

The area of a circle, in terms of π, is 80π m2. Find the value of the radius. Give your answer as a simplified surd.

jolli1 [7]

Answer:

$r=4\sqrt{5}\:\: \sf m$

Step-by-step explanation:

$\textsf{Area of a circle}=\pi r^2 \quad \textsf{(where r is the radius)}$

Given:

Area = 80π m²

Substitute the given value into the formula and solve for r:

$\implies 80 \pi = \pi r^2$

$\implies \dfrac{80 \pi}{\pi} = \dfrac{\pi r^2}{\pi}$

$\implies 80=r^2$

$\implies \sqrt{r^2}=\sqrt{80}$

$\implies r=\sqrt{80}$

$\implies r=\sqrt{16 \cdot 5}$

$\implies r=\sqrt{16}\sqrt{5}$

$\implies r=\sqrt{4^2}\sqrt{5}$

$\implies r=4\sqrt{5}$

4 0

2 years ago

Read 2 more answers

D. Perform the indicated operation showing steps and simplify completely. Be sure to include

Effectus [21]

Answer:

10/63

Step-by-step explanation:

no common factors between 2 & 9

no common factors between 5 & 7

thus no simplification at the end

5*2 / 7*9 = 10/63

6 0

3 years ago

10 cm equal to cm can you help me.

Olenka [21]

Answer:

1000cm

Step-by-step explanation:

there are 100cm in a meter. so we multiply 10 by 100 to get the amount of centimeters in 10 meters which is 1000cm

4 0

3 years ago

Read 2 more answers

Write 2³ in simplified form​

Write 2³ in simplified form