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aleksklad [387]

3 years ago

7

In the right triangle below, tanA = 0.45. What is the approximate length of AB?

2 answers:

mina [271]3 years ago

7 0

Answer:

the correct answer is D: 22 units

garik1379 [7]3 years ago

6 0

In the right triangle ABC wherein AB is the hypotenuse, BC is the opposite and CA is the adjacent tanA=0.45. The approximate length of AB which is the hypotenuse is 22, Opposite (BC) is 9 and Adjacent (CA) is 20. You need to use pythagorean formula in getting the length of AB.

YOUR ANSWER IS (22).

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nikitadnepr [17]

Answer:

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Step-by-step explanation:

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2 years ago

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the sum of −2x2 + x + 31 and 3x2 + 7x − 8 can be written in the form ax2 + bx + c, where a, b, and c are constants. What is the

Kitty [74]

Answer:

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Step-by-step explanation:

we have

$(-2x^{2} +x+31)+(3x^{2}+7x-8)$

Adds the terms

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$(-2x^{2}+3x^{2})+(x+7x)+(31-8)$

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3 years ago

The number of employees per department are normally distributed with a population standard deviation of 198 employees and an unk

cricket20 [7]

Answer:

EBM = +-54.126

Step-by-step explanation:

In this question we have confidence interval to be 80%

The formula to solve this is in the attachment.

Bar X = 1460

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n = 22 departments

After we have inserted all values in to the formula we have:

1460 +-(1.282*198/√22)

= 1460+-(54.12604)

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= +-z-alpha/2 x (sd/√n)

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2 years ago