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ArbitrLikvidat [17]
2 years ago
5

Ron earns x dollars per hour. He regularly works 40 hours per week. Express his annual salary algebraically.

Mathematics
1 answer:
zysi [14]2 years ago
7 0

Answer:

I believe this answer is 40x.

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The standard deviation of a population is known to be 7.8. If the sample size I'd 85, what is the standard error of the mean
12345 [234]

Answer:

The standard error of the mean is 0.85.

Step-by-step explanation:

The given standard deviation of a population (σ) = 7.8

sample size (N) = 85

We have to find standard error of the mean.

The formula to find standard error of the mean

= (standard deviation of the distribution) / (square root of sample size)

= (σ) / (√N)

= 7.8 / (√85)

= 7.8 / 9.219544457

= 0.8460

= 0.85 (approximately taken to two decimal places)

We have got the required answer.

The standard error of the mean is 0.85.



3 0
4 years ago
Help I need help 7/2/3-5/5/8
Amiraneli [1.4K]

Answer:

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8 0
3 years ago
Solve with explanation (3)
grin007 [14]

Answer:

a = 66⁰

b = 33⁰

Step-by-step explanation:

Given;

∠ABC = 114⁰

To calculate a⁰;

a + 114 = 180⁰ (opposite angles of a quadrilateral are supplementary)

a = 180 - 114

a = 66⁰

To calculate b⁰;

Line AB = Line BC, thus, ∠BAC = ∠BCA

∠BAC = b,      then  ∠BCA = b

b + b + 114 = 180 (sum of angles in a triangle)

2b = 180 - 114

2b = 66

b = 66/2

b = 33⁰

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3 years ago
Find the slope of the graph
Pani-rosa [81]

Answer:

Step-by-step explanation:

-2/5

5 0
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patriot [66]

Answer:

The answer is D

Step-by-step explanation:

6 0
3 years ago
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