3 years ago

Find the cube roots of 125(cos 288° + i sin 288°).

Mathematics

1 answer:

Nesterboy [21]3 years ago

8 0

5 and -5 cube roots, cube roots are just what to the power of three is X

You might be interested in

Why did the SDS build a case against the university?

Readme [11.4K]

This isn’t a math equation

7 0

2 years ago

12/19 - 1/2<br> 5/7 + 3/8<br><br> Solve these two I will mark you brainliesat

olga_2 [115]

Answer:

5/38

61/58

Step-by-step explanation:

Answer in the attachment

5 0

2 years ago

Read 2 more answers

The time it takes you to go a certain distance varies inversely with the speed of travel. Suppose it takes you 4 hours to get to

fgiga [73]

$\bf \qquad \qquad \textit{inverse proportional variation}
\\\\
\textit{\underline{y} varies inversely with \underline{x}}\qquad \qquad y=\cfrac{k}{x}\impliedby 
\begin{array}{llll}
k=constant\ of\\
\qquad variation
\end{array}\\\\
-------------------------------$

$\bf \textit{time it takes varies inversely with the speed rate}\qquad \stackrel{time}{t}=\cfrac{k}{\stackrel{rate}{r}}
\\\\\\
\textit{we also know that }
\begin{cases}
t=\stackrel{hrs}{4}\\
r=\stackrel{mph}{50}
\end{cases}\implies 4=\cfrac{k}{50}\implies 200=k
\\\\\\
\boxed{t=\cfrac{200}{r}}
\\\\\\
\textit{if your rate r = 40, what is your distance \underline{t}?}\qquad t=\cfrac{200}{40}$

3 0

2 years ago

One angle of a triangle measures 65°. The other two angles are in a ratio of 3:20. What are the measures of those two angles?

Nataly_w [17]

Answer:

15° and 100°

Step-by-step explanation:

$65 + 3x + 20x = 180$