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Setler [38]
3 years ago
15

If a sample of 66 employees were taken from a population of 820 employees,

Mathematics
1 answer:
ozzi3 years ago
7 0

Answer:

b. 66

Step-by-step explanation:

s2 Could refer to the variance of the 66 employees' salaries

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So the problem ask to find the relationship between the set C and set D and the best answer would be letter C. It states the union of the two relationship base on the set of data given in each set

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What is 4 divided by 1/8
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32

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4/(1/8)

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Let a equal measure of a angle a. The equation 360゚= a + 90゚+ 135゚+ 75゚ represents the sum of the angles in the quadrilateral. F
lina2011 [118]

Answer:

A = 60°

Step-by-step explanation:

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A batman costume costs $20. A harlequin costume costs twice as much as the batman costume. How much does a harlequin costume cos
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Let u = (1, 2 -2), v= (2, 1, 3) and w = j + 4k. a) Find cos theta, where theta is the angle in degrees between u and w.
vodka [1.7K]

Answer: The value of cos theta is -0.352.

Step-by-step explanation:

Since we have given that

\vec{u}=1\hat{i}+2\hat{j}-2\hat{k}\and\\\\\vec{w}=\hat{j}+4\hat{k}

We need to find the cos theta between u and w.

As we know the formula for angle between two vectors.

\cos\ \theta=\dfrac{\vec{u}.\vec{w}}{\mid u\mid \mid w\mid}

So, it becomes,

\cos \theta=\dfrac{2-8}{\sqrt{1^2+2^2+(-2)^2}\sqrt{1^2+4^2}}\\\\\cos \theta=\dfrac{-6}{\sqrt{17}\sqrt{17}}=\dfrac{-6}{17}=-0.352\\\\\theta=\cos^{-1}(\dfrac{-6}{17})=110.66^\circ

Hence, the value of cos theta is -0.352.

8 0
3 years ago
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