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kvasek [131]
3 years ago
6

Evaluate -3^2+(2-6)(10)

Mathematics
2 answers:
maksim [4K]3 years ago
7 0
-3^2+(2-6)(10)
9+-4(10)
9+-40
-31
V125BC [204]3 years ago
4 0
Use order of operations (PEMDAS)

-3^2 + (-6)(10)

= -9 +(-4)(10)

= -9 - 40

= -49  (answer).
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Answer:

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Step-by-step explanation:

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b)

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d)

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e)

E(3X^{2} +2) = 3E(X^{2} ) + 2\\E(3X^{2} +2) = (3*57.25) + 2 \\E(3X^{2} +2) = 173.75

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g)

E(X+1) = E(X) + 1\\E(X+1) = 6.45 + 1\\E(X+1) =7.45

h)

V(X+1) = 1^{2} V(X)\\V(X+1) = 15.648

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