2 years ago

Factor: 9x^2 + 15x.

Mathematics

1 answer:

slega [8]2 years ago

6 0

Answer:

3(3x^2 + 5)

Step-by-step explanation:

step 1: find out the greatest common factor (GCF) of the number 9 and 15

ex: 9x^2 + 15x (3 * 3x^2 + 3 * 5)

step 2: factor out the common term 3

ex: 3 * 3x^2 + 3 * 5 (3 * 3x^2 + 5)

step 3: simplify the equation

3 * 3x^2 + 5 [3(3x^2 + 5)]

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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

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

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

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3 years ago

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Jobisdone [24]

Answer:

f. none of the above

Step-by-step explanation:

90 + 63 = 153

180 - 153 = 27

∠A = 27°

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3 years ago

What is the solution to the system of equations?

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