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vfiekz [6]
3 years ago
15

Please help Use the expression 8a + 16c.

Mathematics
2 answers:
gtnhenbr [62]3 years ago
7 0

Answer

Step-by-step explanation:   your answer would be -42  so heres how i did it: Evaluate for a=−5,c=−1

(8)(−5)+(2)(−1)

(8)(−5)+(2)(−1)

=−42

alexdok [17]3 years ago
3 0

Answer:

C  89a + 2c)

Step-by-step explanation:

The largest factor of both 8 and 16 is 8.  So, 8 = GCF

factor out an 8 and you get 8(a + 2c)

To check if you are correct, multiply and see if you get what you started with.

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divide both sides by 12

so we get

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now add 2 to both sides

x < 4

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3 years ago
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8 0
3 years ago
The time to fly between New York City and Chicago is uniformly distributed with a minimum of 120 minutes and a maximum of 150 mi
lara [203]

Answer:

a) 33.33%)

b) 135 minutes

c) 8.66 min

d) 50%

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a) the probability for a uniform distribution is

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therefore the probability that the flight is more than 140 minutes ( and less than 150 since it is the maximum value)

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b) the mean (expected value) for a uniform probability distribution is

E(X) = (c+d)/2 = (120+150)/2 = 135 minutes

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σ²(X)= (c-d)²/12 = (150-120)²/12 = 75 min²

σ = √75 min² = 8.66 min

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4 0
3 years ago
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