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2 years ago

Using addition formulas for sine and cosine to simplify the expression:

Mathematics

1 answer:

luda_lava [24]2 years ago

6 0

Are these the answer choices. If so I would say D

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A. A person's height is positively associated with their arm span (the distance between the

stiv31 [10]

Answer:

I didn't Sanderstead sorry

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2 years ago

Which situation could this graph represent?

faltersainse [42]

I think it’s a ) running up a hill then walking up a hill be b would mean it would have to be more horizontal to explain constant if i’m not mistaken and c would have to be negative

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2 years ago

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I need the answers is really hard i have to solve each system of equation by graphing 5-13

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3 years ago

A sales analyst listed the probabilities of profits and losses in dollars for a certain company. Find the mean for the probabili

kakasveta [241]

Answer: The mean for the probability distribution will be 69.25.

Explanation:

Since we given that

$At\ x_1= -500 ,P(x) = 0.076\\$

$At\ x_2= -250,P(x)= 0.191\\$

$At\ x_3=0, P(x)= 0.265\\$

$At\ x_4=250 , P(x)= 0.316\\$

$At\ x_5=500 , P(x)= 0.152\\$

As we know the formula for expectation of x i.e. known as mean for the probability distribution,

$E(x)=x\sum_{1}^{5} P(x)$

So, we apply this formula in our case,

$-500\times 0.076+(-250)\times 0.191+0\times 0.265+250\times 0.316+500\times 0.512=69.25$

$\mu = 69.25$

Hence, the mean for the probability distribution will be 69.25.

4 0

3 years ago

Read 2 more answers

How to simplify 20/10

Andreyy89

In order to get the answer to this question you will have to find the common factor and then divide the numerator and denominator by the common factor to get the answer.

$\frac{20}{10}$

$CF=10$

$20\div10=2$

$10\div10=1$

$\frac{2}{1} =2$

$= \frac{2}{1} or2$

Therefore the answer is "2."

Hope this helps.

4 0

2 years ago