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wariber [46]
3 years ago
10

Which of the following number sentences is an example of the identity property of addition?

Mathematics
1 answer:
Paladinen [302]3 years ago
3 0

Answer:

Option C is correct

8 + 0 = 8

Hope this helps!

:)

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What is the equation of the line that passes through the points (1, –1) and (3, –7)
Akimi4 [234]

Answer:

y = -3x + 2

Step-by-step explanation:

To find the slope of an equation you can do (y2-y1)/(x2-x1). Plug the values in from the equation and you get (-1+7)/(1-3), or 6/-2. This means the slope is -3. Then you plug the values of y and x into an equation y = -3x + b, and you get -1 = (-3)1 + b. Solve for b. -1 = -3 + b, (add 3 to each side) 2 = b. Then plug b back into your equation and you get y = -3x + 2

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3 years ago
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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\\

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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
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What is the following sum?<br> 4(^5sqrtx^2y) + 3(^5sqrtx^2y)
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Answer:

option 3

Step-by-step explanation:

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Answer:

slope : 1/15

Step-by-step explanation:

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Directions: Show ALL work. NO WORK=NO CREDIT!
Savatey [412]

Answer:

$18.75

Step-by-step explanation:

75 divided among the 4 sisters equally

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