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Lapatulllka [165]
3 years ago
13

A. Find the number of the dinner orders B. Find the experimental probability

Mathematics
1 answer:
astraxan [27]3 years ago
6 0

Answer:

All I know is that A is 120 And For B, 39 is on the top and 120 is on the bottom.

Step-by-step explanation:

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Wolfrich lived in Portugal and Brazil for a total period of 14 months in order to learn Portuguese. He learned an average of 130
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He lived 9 months in Portugal and 5 months in Brazil. This is because 130*9 + 150*5 = 1920.
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3 years ago
A body moves s metres in a time t seconds so that s = t3 – 3t2 + 8. Find:
Lady bird [3.3K]

Using derivatives, it is found that:

i) v(t) = 3t^2 - 6t

ii) 9 m/s.

iii) a(t) = 6t - 6

iv) 6 m/s².

v) 1 second.

<h3>What is the role of derivatives in the relation between acceleration, velocity and position?</h3>
  • The velocity is the derivative of the position.
  • The acceleration is the derivative of the velocity.

In this problem, the position is:

s(t) = t^3 - 3t^2 + 8

item i:

Velocity is the <u>derivative of the position</u>, hence:

v(t) = 3t^2 - 6t

Item ii:

v(3) = 3(3)^2 - 6(3) = 27 - 18 = 9

The speed is of 9 m/s.

Item iii:

Derivative of the velocity, hence:

a(t) = 6t - 6

Item iv:

a(2) = 6(2) - 6 = 6

The acceleration is of 6 m/s².

Item v:

t for which a(t) = 0, hence:

6t - 6 = 0

6t = 6

t = \frac{6}{6}

t = 1

Hence 1 second.

You can learn more about derivatives at brainly.com/question/14800626

7 0
2 years ago
A salesman will earn a commission equal to 1/10 of the total amount sold. If he sells a car with a price of $24,000 what is his
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Answer:

The answer would be c

Step-by-step explanation:

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(i will give brainliest for the first answer)
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Answer:  X"  ( -3,2)    Y" (-1,0)   Z" (1,6)

Step-by-step explanation:

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2 years ago
Square root of 90 minus r equals r
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Answer:

r=sqrt45

Step-by-step explanation:

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3 years ago
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