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trapecia [35]
3 years ago
7

Denise works for 3 hours and earns 19.50 How much does she earn in one hour?

Mathematics
2 answers:
Natasha2012 [34]3 years ago
8 0

Answer: $6.50

Step-by-step explanation:

lyudmila [28]3 years ago
5 0

Answer:

she earns 6.50 per hour

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Consider the function f(x)=2x2+7x−30.<br><br> What are the zeros of the function?
Nimfa-mama [501]

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Zeroes are: (-6, 0) and (2.5, 0)

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5 0
2 years ago
Is it A? If not, why?
Lostsunrise [7]

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2 years ago
A square pyramid has side lengths each measuring 8 centimeters. The height of the pyramid is 3 centimeters. What is the lateral
maks197457 [2]

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Step-by-step explanation:

8 0
3 years ago
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Y= 2.5x+ 5.8 when x = 0.6 pls find the function
adoni [48]
You’d plug in the 0.6 for x. so you’d multiple 0.6 times 2.5 then you’d get 1.5 then you’d add 1.5 plus 5.8 and get 7.3
6 0
3 years ago
Random samples of size 81 are taken from an infinite population whose mean and standard deviation are 200 and 18, respectively.
TiliK225 [7]

Answer:

d. 200 and 2

Step-by-step explanation:

The Central Limit Theorem estabilishes that, for a normally distributed random variable X, with mean \mu and standard deviation \sigma, the sampling distribution of the sample means with size n can be approximated to a normal distribution with mean \mu and standard deviation s = \frac{\sigma}{\sqrt{n}}.

For a skewed variable, the Central Limit Theorem can also be applied, as long as n is at least 30.

In this problem, we have that:

Mean = 200

Standard deviation = 18

Sample size: 81

Standard error: s = \frac{18}{\sqrt{81}} = 2

So the correct answer is:

d. 200 and 2

7 0
3 years ago
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