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2 years ago

Complete the fraction that is equivalent to . = ¯¯¯¯¯ 24

Mathematics

1 answer:

wariber [46]2 years ago

4 0

Answer:

24 is equivalent to 24/1

Step-by-step explanation: Hope this helped you feel free to ask questions in comments.

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Mr Diaz decreased the speed of his car by 30 miles per hour over a period of 10 seconds. What is the average change in the speed

Allisa [31]

Divide 30 by 10. 30mph/10seconds = 3mph/seconds

4 0

2 years ago

I need help on this question

Ainat [17]

x-axis is y=0, so the answer is D.

but not D. Luffy

7 0

2 years ago

4. Which is the better value? Show your work and explain your choice.

Tems11 [23]

Option B

I think its opinion B because its cheaper

3 0

2 years ago

Suppose that lithium calculator battery with a charge of 3 volts, actually has a voltage with uniform distribution between 2.93

Dmitrij [34]

Answer:

b. E(X) = 3.015, STDEV(X)= 0.049, P (X ≤ 2.98) = 0.2941

Step-by-step explanation:

An uniform probability is a case of probability in which each outcome is equally as likely.

For this situation, we have a lower limit of the distribution that we call a and an upper limit that we call b.

The mean of the uniform probability distribution is:

$M = \frac{a + b}{2}$

The standard deviation of the uniform distribution is:

$S = \sqrt{\frac{(b-a)^{2}}{12}}$

The probability that we find a value X lower than x is given by the following formula.

$P(X \leq x) = \frac{x - a}{b-a}$

Uniform distribution between 2.93 and 3.1 volts

This means that $a = 2.93, b = 3.1$ . So

Mean:

$M = \frac{2.93 + 3.1}{2} = 3.015$

Standard deviation:

$S = \sqrt{\frac{(3.1 - 2.93)^{2}}{12}} = 0.049$

What is the probability that a battery has a voltage less than 2.98?

$P(X \leq 2.98) = \frac{2.98 - 2.93}{3.1 - 2.93} = 0.2941$

So the correct answer is:

b. E(X) = 3.015, STDEV(X)= 0.049, P (X ≤ 2.98) = 0.2941

6 0

2 years ago

Answer YES if is a Right Triangle or NO if is not

Vilka [71]

Answer:

Part A: yes

Part B: yes

Part C: yes

Step-by-step explanation:

Part A:

77² + 420² = 427²

5,929 + 176,400 = 182,329

182,329 = 182,329

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Part B:

279² + 440² = 521²

77,841 + 193,600 = 271,441

271,441 = 271,441

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Part C:

39² + 760² = 761²

1,521 + 577,600 = 579,121

579121 = 579,121

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7 0

2 years ago