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2 years ago

Anybody know the answer ?

Mathematics

2 answers:

AlladinOne [14]2 years ago

8 0

I think its idfk…maybe?!?

ki77a [65]2 years ago

7 0

Answer:

The final speed after collision of the first ball that weighs 4 kg will be 8.5 m/s.

Step-by-step explanation:

M1 = 4

M2 = 2

V1 = 8

V2 = 6

V2f = 5

V1f = ?

Rep. Situation with Momentum formula:

M1*V1+M2*V2 = M1*V1f+M2*V2f

Rearrange:

((M1*V1+M2*V2)-M2*V2f) / M1 = V1f

Calculate:

((44) - 10) / 4 = V1f

V1f = 8.5

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3 years ago

Read 2 more answers

Sovle for x. 2x + 6 = - r - 15

Igoryamba

Answer:

$x = \frac{-r - 21}{2}$

Step-by-step explanation:

Isolate the variable, x. Note the equal sign, what you do to one side, you do to the other. Remember to do the opposite of PEMDAS.

PEMDAS =

Parenthesis

Exponents (& Roots)

Multiplication

Division

Addition

Subtraction

First, subtract 6 from both sides:

2x + 6 (-6) = -r - 15 (-6)

2x = -r + (-15 - 6)

2x = -r + (-21)

2x = - r - 21

Next, divide 2 from both sides:

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2 years ago

8,6,9,11,12,4,9,2 what is the mean the median and the mode and the range

ASHA 777 [7]

Mean: 7.625
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2 years ago

What is the area of the shaded sector ?

Zigmanuir [339]

Step-by-step explanation:

Find the area using a proportion.

A / (πr²) = θ / 360°

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