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3 years ago

Can someone help me, please

Mathematics

1 answer:

katrin [286]3 years ago

5 0

Answer:

3. 108.982 feet per second

so yes faster than 100 feet per second

5. 46.336°

6. 31.999°

7. 73.301°

8. 18.435°

Step-by-step explanation:

3. tan(16)= 250/x

x=250/tan(16)

x= 871.853611

speed=871.853611/8

= 108.982 feet per second

so yes faster than 100 feet per second

4. I do not understand the formulation of the question

5. sinx= 3.4/4.7

asin*(to the power of -1)*(3.4/4.7)=x

x=46.336

6.tanx=4,532/7253

atan*(power -1)* (4,532/7253)=x

x=31.999

7.tanx=500/150

x=73.301

8. tanx=30/10

atan(30/10)=x

x=71.56505118

90-71.56505118=18.43494882(the final angle)

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The sum of the measures of three adjacent angles is 150°. The measures of the angles are in the ratio of 1:2:3. What is the mea

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Answer:

14•4°

step by step explanation:

ratio=1:2:3=6

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6/5°×12°

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Thanks hope it helps

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3 years ago

Explain how you find a unit rate when given a rate.

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3 years ago

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Usimov [2.4K]

Answer:

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3 years ago

Read 2 more answers

1 Find the value of C to that the function probability density function defined as follow, also calculate the man and variance /

Viefleur [7K]

Answer:

$c = \frac{1}{12}$

The mean of the distribution is 0.25.

The variance of the distribution is of 0.6875.

Step-by-step explanation:

Probability density function:

For it to be a probability function, the sum of the probabilities must be 1. The probabilities are 3c, 3c and 6c, so:

$3c + 3c + 6c = 1$

$12c = 1$

$c = \frac{1}{12}$

So the probability distribution is:

$P(X = -1) = 3c = 3\frac{1}{12} = \frac{1}{4} = 0.25$

$P(X = 0) = 3c = 3\frac{1}{12} = \frac{1}{4} = 0.25$

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Mean:

Sum of each outcome multiplied by its probability. So

$E(X) = -1(0.25) + 0(0.25) + 1(0.5) = -0.25 + 0.5 = 0.25$

The mean of the distribution is 0.25.

Variance:

Sum of the difference squared between each value and the mean, multiplied by its probability. So

$V^2(X) = 0.25(-1-0.25)^2 + 0.25(0 - 0.25)^2 + 0.5(1 - 0.25)^2 = 0.6875$

The variance of the distribution is of 0.6875.

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3 years ago

The distance between Cincinnati, OH and Charlotte, North Carolina is about 336 miles. The distance between Cincinnati and Chicag

ElenaW [278]

Cincinnati Ohio à<span> Charlote North CA = a total of 336 miles
Cincinnati </span>à<span> Chicago Illinois = a total of 247 miles
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=> 336 miles + 247 Miles
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Penny drove for a total of 583 miles from Charlotte to Cincinnati to Chicago.</span>

3 0

3 years ago