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Ugo [173]
3 years ago
11

A polar bear swims 390 meters at a constant rate in 150 seconds. what is the speed of the polar bear?

Mathematics
1 answer:
worty [1.4K]3 years ago
5 0
The answer is 2.6 m/s

The speed (v) is distance (d) through time (t).
v = d/t

We know:
d = 390 m
t = 150 s

v = d/t
v = 390 m / 150s
v = = 2.6 m/s
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Kayla is a basketball player who makes 50 of her 2 point shots and 20 of her 3 point shots find Kayla expected value for a 2 poi
Mumz [18]

Kayla's expected value for a 2- point shot is 1 point.

What is expected value?

The expected value, also known as expectation, expectancy, arithmetical expectation, mean, average, first or moment, is a generalization of the weighted average in the field of probability theory. Informally, the estimation is the arithmetic mean of a significant number of values of a random variable that were independently chosen. A weighted average of all potential outcomes constitutes the expected value of the a random variable with such a finite number of outcomes. When there is a continuum of potential outcomes, integration defines the expectation. The expectation is provided by Lebesgue integration in the measure theory-based axiomatic foundation for probability.

Sol- The expected value is calcuated using the formula:

EV= x.P(x)

where x is the weight/value of the event, and P(x) is the probability of the event occurring.

For a 2-point shot, we have:

X=2

P(x) = 50/100 = 0.5

There for the expected value will be -

EV = 2×0.5 = 1

Thus,

The expected value will be 1 point.

To know more about expected value click-
brainly.com/question/843074
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4 0
1 year ago
Help please due in 20 minutes I will mark brainliest
navik [9.2K]

Answer:

its the second one down my dude. good luck!

6 0
3 years ago
HURRY!!
ankoles [38]

Answer: A. 8x+13

Step-by-step explanation:

9+4(2x-1)+8

Use distributive property

9+8x-4+8

Combine like terms

8x+13

4 0
3 years ago
Read 2 more answers
1+1? i'm just doing this to set up my acc lol
charle [14.2K]
2 ;) was this helpful? mark me as the best!
8 0
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Answer:

a bc I think it's right idk really

Step-by-step explanation:

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