7) If a random variable X has mean 3 and variance 4, then E (X2 + 3X + 2) is: a) 12 (b) 36 (c) 24 (d) 6

Q: 5. If a number plus 4 equals two times 6, what is the number?

A:

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A: It is an important part of statistics . It is widely used .

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A: given equations are…

Q: Graph. y = - x² + 2x - 8 Use the graphing tool to graph the equation. Click to enlarge graph

A: Hello! Thank you for the question. We'll able to solve only one question as per our honor code.

Q: 0 + 1 Ve + 20 op=

A: To determine the integral.

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Q: 1. Solve for x: x + 3 = 15 2. Solve for x: x – 3 = -1 3. Solve for y: 2y = 38

A: We have to find the value of x and y

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Q: You gave me the same answer for two different questions with different values?

A:

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A:

Q: -4x-y=1 -9x+9=Y

A: Given : The equations are-4x - y = 1-9x + 9 = y

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A: Given     h= ab + rh We can solve for a by separating it

Q: For step three, how did you replace the h?

A: Let's solve.

Q: solution is typed off the page

A:

Q: How did you figure out the answers? Can you show your work

A: Doubt: How did you figure out the answers.

Q: How do I solve this question?

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A: The mean SAT score in mathematics is 486.

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A: We have to solve for x, y.

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A: Given,

Q: ADEFAWVU 18x+6 D 156

A: