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kozerog [31]
3 years ago
15

How can 26 n − 7 m + 4 ( 10 n − 6 m ) be rewritten?

Mathematics
1 answer:
Karolina [17]3 years ago
5 0

Answer:

66n - 31m because we expand the parentheses and join like terms.

Hope this helps and brainliest please

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Can I please have help on 3, 4 will mark brainiest thank you.
777dan777 [17]

Answer:

4) Alternate angles

Step-by-step explanation:

Alternate angles are on the opposite corners of the line of the angle, and 10 and 14 are on opposite corners, so that makes them alternate angles. I hope this helped you!

7 0
2 years ago
A function has a constant doubling time. What type of function does this<br> represent?
SIZIF [17.4K]

Answer:

  an exponential function

Step-by-step explanation:

An exponential function has the characteristic that it increases by a constant factor when the independent variable increases by a constant increment. The function you describe is an exponential function.

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It can be written in the form ...

  f(t) = f(0)·2^(t/d) . . . . . where d is the doubling time

6 0
3 years ago
Kevin drew a triangle with angle measures of 30 degrees and 40 degrees and side measures of 5 cm, 7cm, and 8 cm. Explain, using
Pavel [41]

Answer:  

He drew a scalene triangle

Step-by-step explanation:

A scalene triangle is where all side measure and all angle measure are different.

8 0
2 years ago
Read 2 more answers
Describe how the variability of the distribution changes as the sample size increases. As the sample size increases, the variabi
wolverine [178]

Answer:

As the sample size increases, the variability decreases.

Step-by-step explanation:

Variability is the measure of actual entries from mean.  The less the deviations the less would be the variance.

For a sample  of size n, we have by central limit theorem the mean of sample follows a normal distribution for random samples of large size.

X bar will have std deviation as \frac{s}{\sqrt{n} }

where s is the square root of variance of sample

Thus we find the variability denoted by std deviation is inversely proportion of square root of sample size.

Hence as sample size increases, std error decreases.

As the sample size increases, the variability decreases.

7 0
3 years ago
Help me with this question
Ivan

B is the answer because none of the others will be right and b is the one you should always do when to solve a rea word problem

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