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aliina [53]
2 years ago
8

It costs $74 per hour plus a $65 service fee to have a home theater system set up for you. Let t represent the number of hours.

Which expression represents the total cost?
Mathematics
1 answer:
ki77a [65]2 years ago
8 0

Answer:

74t + 65= total cost

Step-by-step explanation:

74 is the amount per hour, so you would need to multiply that by the number of hours they work (74t) and the 65 is a set fee (does not change based on the amount of service) so you just add that on

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Given = 1/(−3), what is ((+ℎ)−())/ℎ ?
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Answer:

-(1/(x+h-3)(x-3))

Step-by-step explanation:

y=1/(x-3)

(f(x+h)-f(x))/h=(1/(x+h-3)-1/(x-3))/h=-(1/(x+h-3)(x-3))

6 0
3 years ago
Random samples of size 64 are taken from an infinite population whose mean and standard deviation are 24 and 6.4, respectively.
umka2103 [35]

Answer:

Mean 24, standard error 0.8

Step-by-step explanation:

The Central Limit Theorem estabilishes that, for a random variable X, with mean \mu and standard deviation \sigma, the sample means with size n of at least 30 can be approximated to a normal distribution with mean \mu and standard deviation, also called standard error s = \frac{\sigma}{\sqrt{n}}

In this problem, we have that:

\mu = 24, \sigma = 6.4, n = 64

What are the mean and the standard error of the sample mean?

By the Central Limit Theorem, mean 24 and standard error s = \frac{6.4}{\sqrt{64}} = 0.8

7 0
2 years ago
What is the d value of the following arithmetic sequence? 5, 2, -1, -4, -7,…
Andrew [12]
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6 0
3 years ago
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What is the name of the shape of the graph of a quadratic function?
dimaraw [331]
Is this a multiple choice or no
6 0
3 years ago
What is 42÷(15-2 by the power of 3<br><img src="https://tex.z-dn.net/?f=42%20%5Cdiv%2815%20-%202%20%7B%7D%5E%7B3%7D%20%29" id="T
tigry1 [53]
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4 0
3 years ago
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