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Nastasia [14]
2 years ago
8

A particle travels along the x-axis such that its position at time t is given by the function x(t)= 2t^2+t. What is the average

speed of this particle over the interval 2 is less than or equal to t which is less than or equal to 10
A-4

B-200

C-32

D-25
Mathematics
1 answer:
Lapatulllka [165]2 years ago
8 0

Answer:

4: A

Step-by-step explanation:

Mathematically, the average speed over a particular range will be;

f’(b)-f’(a)/(a-b)

In this case; a = 2 and b = 10

So we have the following;

f’(x) = 4t + 1

f’(10) = 4(10) + 1 = 41

f’(2) = 4(2) + 1 = 9

So we have the average speed change as;

(41-9)/(10-2)

= 32/8 = 4

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2.4 cause 0.24×10=2.4
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Which expression is equivalent to 4x+20?
max2010maxim [7]

Answer:

4x+20=

6x-10

Step-by-step explanation:

Simplifying: 4x + 20 = 6x + -10

Reorder the terms: 20 + 4x = 6x + -10

Reorder the terms: 20 + 4x = -10 + 6x

Solving: 20 + 4x = -10 + 6x

Solving for variable 'x'.

Move all terms containing x to the left, all other terms to the right.

Add '-6x' to each side of the equation: 20 + 4x + -6x = -10 + 6x + -6x

Combine like terms: 4x + -6x = -2x: 20 + -2x = -10 + 6x + -6x

Combine like terms: 6x + -6x = 0: 20 + -2x = -10 + 0: 20 + -2x = -10

Add '-20' to each side of the equation: 20 + -20 + -2x = -10 + -20

Combine like terms: 20 + -20 = 0: 0 + -2x = -10 + -20: -2x = -10 + -20

Combine like terms: -10 + -20 = -30: -2x = -30

Divide each side by '-2': x = 15

Simplifying: x = 15

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3 years ago
Refer to the table above. Which event is independent of gender?
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Answer:

A randomly chosen female voter is Other.

Step-by-step explanation:

Well, you just have to read it and ask yourself which one is specific to only one gender, or which one talks about only one gender, so the answer here is:

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Answer:

3/8

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