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3 years ago

I think it is a and c, but I would feel better if I had confirmation lol

Mathematics

2 answers:

mars1129 [50]3 years ago

5 0

Answer:

A is correct and so is D (C = 64b + 16c, but it is meant to be -16)

Step-by-step explanation:

Hope this helps! Please mark as Brainliest!

Aleonysh [2.5K]3 years ago

5 0

It’s is A and D if u would really like two know

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PLEASE HELP FAST 15 POINTS ANDWER IF YOU ONLY KNOW!

DochEvi [55]

Answer:

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3 years ago

Write an equation in standard form that has a slope of –5/2 and a y-intercept of –2.

vova2212 [387]

Answer:

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Step-by-step explanation:

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3 years ago

A spinning giant star of initial radius R1 and angular speed ω1 suddenly collapses radially inward reaching a new radius R2 = 0.

tiny-mole [99]

Answer:

K1/K2=4

Step-by-step explanation:

The kinetic energy of a rotating sphere is given by:

$K=\frac{I*\omega^{2} }{2}$

The moment of inertia of a solid sphere is given by

$I=\frac{2MR^{2} }{5}$

The initial kinetic energy is therefore

$K_1=\frac{2MR^{2}*\omega^{2} }{10}$

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The final kinetic energy is given by

$K_2=\frac{MR_2^{2}*\omega^{2} }{5}$

Therefore the relation K1/K2 if R2 = 0.5R1

$\frac{K_1}{K_2} =\frac{5M(R_1)^{2}*\omega^{2} }{5*M(0.5R_1)^{2} \omega^{2}}$

The text says nothing about the final angular velocity just the collapse of the collapse of the radius

$\frac{K_1}{K_2} =\frac{1 }{(0.5)^{2} }=4$

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3 years ago

Did i get almost an entire lesson on math done in a day? Yes Was it hard? N o p e

lions [1.4K]

Good job!!!!!!!!!!!!!!!

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3 years ago

Read 2 more answers

Have the conditions for inference been met?

alekssr [168]

Answer: the answer is A

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youre welcome

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3 years ago