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3 years ago

1. 1 5/8 divided by - 1 3/5 2. -5 1/3 divided by 2 3/4

Mathematics

1 answer:

KengaRu [80]3 years ago

6 0

1. 1 5/8 / -1 3/5 = -25/24 = -1 1/24

2. -5 1/3 / 2 3/4 = 10/9 = -1 1/9

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2 years ago

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Answer:

The average cost is $E(C) = 66$

The standard deviation of cost is $\sigma = 9.798$

Step-by-step explanation:

From the question we are told that

$E(X) = 4$

$E(Y) = 2$

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V(X) = $E(X^2) - [E(X)]^2$

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The variance of Y is mathematically represented as

V(Y) = $E(Y^2) - [E(Y)]^2$

Substituting values

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The average of replacing the two component is

$E(C) = 2 * E(X) + 4* E(Y)$

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$E(C) = 50 + 2 * (4) + 4* (2)$

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$\sigma = \sqrt{V(C)}$

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2 years ago

Question<br> Determine the number of solutions to the quadratic equation: 572 + 62 – 2 = 0.

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We know: 572 + 62 – 2 ≠ 0

So there is no solution the quadratic equation: 572 + 62 – 2 = 0

ok done. Thank to me :>

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