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Sergeu [11.5K]
2 years ago
15

Which of the following statements are true regarding functions? Check all that apply.

Mathematics
1 answer:
Alex2 years ago
3 0

Answer:

The horizontal line test may be used to determine whether a function is one-to-one.
The vertical line test may be used to determine whether a relation is a function.

Step-by-step explanation:

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Simplify the expression by combining like terms<br>4r+3c-2r+9c​
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2r+12c

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3 years ago
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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
3 years ago
We are learning about angle
neonofarm [45]

Answer:

Step-by-step explanation:

If you cut the square apart along a diagonal, you'll then have two isosceles triangles.  Each such triangle will have 3 sides and 3 angles.  

Next time, please type in a more descriptive title for your question.

7 0
3 years ago
How are rational exponents and roots similar
stellarik [79]

They are similar in basically everything because they're inverse operations.

Inverse operations are operations that do the smae thing, but the opposite way. If one multiplies, the other one divides. If one sums the other one subratcts.


→ Exponents multiply the same number by itself a given amount of times to obtain the answer.

→ Roots get a number and look for another one that multiplied by itself a given amount of times reult in the initial number.


Hope it helped,


BioTeacher101

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PLZ, help me with this question..
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detection

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Because detection means "finding"

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