All categories

3 years ago

Solve the equation x3 = 8 A. 2 B. 2.7 C. 24 D. 512

Mathematics

1 answer:

murzikaleks [220]3 years ago

8 0

X=8/3
x=2.66
answer is B

You might be interested in

10 POINTS<br> Find x. Assume that segments that appear tangent are tangent.

mixas84 [53]

Answer:

Step-by-step explanation:

see explanation, use tangent property to solve question

4 0

3 years ago

Suppose the circumference of a circle is 4, pi. What is its diameter?

Vilka [71]

Your answer would be 4, because the equation for the circumference of a circle is π × diameter, so if you have 4 × π as the circumference, then 4 is the diameter.

I hope this helps!

3 0

2 years ago

Read 2 more answers

baherus [9]

Answer: see proof below

<u>Step-by-step explanation:</u>

Given: cos 330 = $\frac{\sqrt3}{2}$

Use the Double-Angle Identity: cos 2A = 2 cos² A - 1

$\text{Scratchwork:}\quad \bigg(\dfrac{\sqrt3 + 2}{2\sqrt2}\bigg)^2 = \dfrac{2\sqrt3 + 4}{8}$

Proof LHS → RHS:

LHS cos 165

Double-Angle: cos (2 · 165) = 2 cos² 165 - 1

⇒ cos 330 = 2 cos² 165 - 1

⇒ 2 cos² 165 = cos 330 + 1

Given: $2 \cos^2 165 = \dfrac{\sqrt3}{2} + 1$

$\rightarrow 2 \cos^2 165 = \dfrac{\sqrt3}{2} + \dfrac{2}{2}$

Divide by 2: $\cos^2 165 = \dfrac{\sqrt3+2}{4}$

$\rightarrow \cos^2 165 = \bigg(\dfrac{2}{2}\bigg)\dfrac{\sqrt3+2}{4}$

$\rightarrow \cos^2 165 = \dfrac{2\sqrt3+4}{8}$

Square root: $\sqrt{\cos^2 165} = \sqrt{\dfrac{4+2\sqrt3}{8}}$

Scratchwork: $\cos^2 165 = \bigg(\dfrac{\sqrt3+1}{2\sqrt2}\bigg)^2$

$\rightarrow \cos 165 = \pm \dfrac{\sqrt3+1}{2\sqrt2}$

Since cos 165 is in the 2nd Quadrant, the sign is NEGATIVE

$\rightarrow \cos 165 = - \dfrac{\sqrt3+1}{2\sqrt2}$

LHS = RHS $\checkmark$

4 0

3 years ago

5 pockets of potatoes R125,00. how much will 4 pockets cost?

dsp73

Cost of 1pocket of potatoes = 5/125
=25
só,
4pockets = 25 multiply by 4 = 100

your answer is 100

Hi! (◕‿◕)

5 0

2 years ago

A square pyramid is sliced in half, parallel to the base.

DIA [1.3K]

Answer:

I think the answer is a because it not getting any smaller

7 0

2 years ago

Read 2 more answers