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DochEvi [55]
2 years ago
8

39 28. If y = (1 - 3x), find the value of dy! dx at x = -1.​

Mathematics
1 answer:
rewona [7]2 years ago
6 0

Answer:

the answer to this question is 52.18

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The weekly incomes of a large group of executives are normally distributed with a mean of $2,000 and a standard deviation of $10
8_murik_8 [283]

Answer:

The z-score for an income of $2,100 is 1.

Step-by-step explanation:

If X \sim N (µ, σ²), then  Z=\frac{x-\mu}{\sigma}, is a standard normal variate with mean, E (Z) = 0 and Var (Z) = 1. That is, Z \sim N (0, 1).

The distribution of these z-variate is known as the standard normal distribution.

Given:

µ = $2,000

σ = $100

<em>x</em> = $2,100

Compute the <em>z</em>-score for the raw score <em>x</em> = 2100 as follows:

Z=\frac{x-\mu}{\sigma}=\frac{2100-2000}{100}=\frac{100}{100}=1

Thus, the z-score for an income of $2,100 is 1.

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2 years ago
Solve each equation. Use models if necessary. Check your solution.
morpeh [17]

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2 years ago
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Hello i need help with this question
scoundrel [369]

Answer:

4pf

Step-by-step explanation:

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The perimeter of a regular pentagon is 41.5 cm. Write and solve an equation to determine the length of each side of the pentagon
Sveta_85 [38]

Answer:

41.5÷5= the answer 8.3 cm

5 0
3 years ago
There are 20 nickels in one dollar. Write an equation to find the number of nickels n in any number of dollars d
n200080 [17]

5+5+5+5+5+5+5+5+5+5+5+5+5+5+5+5+5+5+5+5

20 nickles

20•5=1.00

4 0
2 years ago
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