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malfutka [58]
3 years ago
9

Emme swims for 45 minutes. How many calories does she burn? _ calories

Mathematics
1 answer:
Alenkasestr [34]3 years ago
6 0

Answer:

375 calories.

Step-by-step explanation:

500calories/hr *x/45min= 375 calories.

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Identify which properties are being used in each step
olga55 [171]
The first one is distributive property
I think the 2nd and last are associative
and the last is commutative
3 0
4 years ago
3.) You are wrapping a present in shape of a tube,
sertanlavr [38]

Answer:

56π = 175.929, so no.

Step-by-step explanation:

Surface area formula: 2B+Ph (where B is area of the base, P is perimeter of the base, and h is height.)

2(4π) + 4π(12)

8π +48π

56π = 175.9 ft^2

5 0
3 years ago
How to expand<img src="https://tex.z-dn.net/?f=in%28%20x%5E%7B2%7D%20y%20%5E%7B2%7D%20%29" id="TexFormula1" title="in( x^{2} y ^
maksim [4K]
You have to, use distributive property my dood
5 0
3 years ago
What is the equation of the line, in point-slope form, that passes through the points (-7, -10) and (-6, -8)?
Masja [62]

Answer:

not sure if that is the Answers

The equation of a line is y = mx where m is the slope. That line passes through the origin. If you want it to pass through some point (a, b) you subtract the coordinates like this: y - b = m (x - a). That is the point-slope form, and you can rewrite it in other forms if it is convenient. You may do this with any point on the line.

Step-by-Answers

8 0
3 years ago
A random sample of 121 checking accounts at a bank showed an average daily balance of $280. The standard deviation of the popula
klasskru [66]

Answer:

False

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

Sample of 121, which is higher than 30.

So we do not need to know anything about the shape of the distribution in order to make an interval estimate of the mean of all the account balances.

So the answer is False

8 0
4 years ago
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