3 years ago

Please somebody help me and solve this problem

Mathematics

1 answer:

pychu [463]3 years ago

5 0

Answer:

this is the equation for the graph y=(x+3)(x-2)

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If f=3,8 = 5, h= 10 find the value of<br>2f-g + h

Viktor [21]

That makes no sense. Can you rephrase the question?

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3 years ago

2. 90 rock CD's out of 125 CD's.

lidiya [134]

Answer:

72%

Step-by-step explanation:

90/125 is .72

out of 125 CD's there are 72% of rock CD's and 28 of unknown CD's

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3 years ago

A wheel initially has an angular velocity of 18 rad/s, but it is slowing at a constant rate of 2 rad/s 2 . By the time it stops,

Kaylis [27]

Answer:13 revolution

Step-by-step explanation:

Given data

Wheel initial angular velocity $\left ( \omega \right )$ =18 rad/s

Contant angular deaaceleration $\left ( \alpha \right )$ =2 $rad/s^2$

Time required to stop wheel completely=t sec

$\omega =\omega_0 + \aplha t$

0 =18 + $\left ( -2\right )t$

t=9 sec

Therefore angle turn in 9 sec

$\theta$ = $\omega_{0} t$ + $\frac{1}{2}$ $\left ( \alpha\right )t^{2}$

$\theta$ = $18\times 9$ + $\frac{1}{2}$ $\left ( -2\right )\left ( 9\right )^2$

$\theta$ =81rad

therefore no of turns(n) = $\frac{81}{2\times \pi}$

n=12.889 $\approx$ 13 revolution

3 0

3 years ago

Please help asap !!!

Firlakuza [10]

I believe that the answer is B. y=-7x+41

7 0

2 years ago

DaniilM [7]

Just took this test on k12. The answer is 260cm. Hope this helps!!

5 0

3 years ago