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3 years ago

HELP ASAP IM STUPIDDDDD Write the power as a product of factors: 9^7

Mathematics

2 answers:

algol [13]3 years ago

7 0

Answer:

9x9x9x9x9x9x9, theres your answer

Anvisha [2.4K]3 years ago

7 0

Answer:

Da Answer Is : 9 × 9 × 9 × 9 × 9 × 9 × 9

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Please help me with precalculus??<br>linear and angular speed

Anit [1.1K]

13)

there are 2π radians in 1 revolution, and there are 60 seconds in 1 minute, so keeping that in mind, then,

$\bf \cfrac{4\underline{\pi} }{5~\underline{s}}\cdot \cfrac{rev}{2\underline{\pi} }\cdot \cfrac{60~\underline{s}}{min}\implies \cfrac{4\cdot 60~rev}{5\cdot 2~min}\implies \cfrac{240~rev}{10~min}\implies 24\frac{rev}{min}$

14)

$\bf \textit{linear velocity}\\\\
v=rw\quad 
\begin{cases}
r=radius\\
w=angular~speed\\
----------\\
v=32\frac{m}{sec}\\
w=100\frac{rev}{min}
\end{cases}\\\\
-------------------------------\\\\
\textit{let's convert \underline{w} to }\frac{radians}{sec}$

$\bf \cfrac{100~\underline{rev}}{\underline{min}}\cdot \cfrac{2\pi }{\underline{rev}}\cdot \cfrac{\underline{min}}{60~sec}\implies \cfrac{100\cdot 2\pi }{60~sec}\implies \cfrac{10\pi }{3~sec}\implies \cfrac{10\pi }{3}\frac{radians}{sec}\\\\
-------------------------------\\\\
v=rw\implies \cfrac{v}{w}=r\implies \cfrac{\frac{30~m}{sec}}{\frac{10\pi }{3~sec}}\implies r=\cfrac{30~m}{\underline{sec}}\cdot \cfrac{3~\underline{sec}}{10\pi }
\\\\\\
r=\cfrac{90}{10\pi }m$

15)

what is the radians per seconds "w" in revolutions per minute? just another conversion like in 13)

$\bf \cfrac{\underline{\pi} }{3~\underline{sec}}\cdot \cfrac{rev}{2\underline{\pi }}\cdot \cfrac{60~\underline{sec}}{min}\implies \cfrac{60 ~rev}{3\cdot 2 ~min}\implies \cfrac{60 ~rev}{6 ~min}\implies 10\frac{rev}{min}$

4 0

4 years ago

A circle has a radius of 3. An arc in this circle has a central angle of 20°. What is the length of the arc? Either enter an exa

Semenov [28]

Answer:

$\frac{\pi }{3}$

$2 * \pi * 3 * \frac{20}{360}$

120 $\pi$ /360 = $\frac{\pi }{3}$

Step-by-step explanation:

5 0

2 years ago

Helpppppppppppppppppppp

Ivan

I believe the answer is B and E

7 0

3 years ago

I'm taking my final please answer this and wish me luck

Tema [17]

Answer:

B 7feet

Step-by-step explanation:

Side a = 24

Side b = 25

Side c = 7

Angle ∠A = 73.74° = 73°44'23" = 1.287 rad

Angle ∠B = 90° = 1.5708 rad = π/2

Angle ∠C = 16.26° = 16°15'37" = 0.28379 rad

C=16.26°B=90°A=73.74°b=25a=24c=7

Area = 84

Perimeter p = 56

Semiperimeter s = 28

Height ha = 7

Height hb = 6.72

Height hc = 24

3 0

3 years ago

Read 2 more answers

lions [1.4K]

Answer:

$2ft^{3}$

Step-by-step explanation:

V = length × width × height

SO...

V = 1ft × 1ft × 2ft

V = $2ft^{3}$

5 0

2 years ago