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JulsSmile [24]
3 years ago
15

Please help! Brainliest answer! thank you!1

Mathematics
2 answers:
kobusy [5.1K]3 years ago
5 0

Answer:

I think it's A

Step-by-step explanation:

because none of the others appear to be correct

Snowcat [4.5K]3 years ago
3 0

Answer:

A. AB = CB

Step-by-step explanation:

If you compare all the lines shown, you can see that options B,C and D are all incorrect, therefore, the last remaining option, option A, is correct.

A. AB = CB

Hope this helps :)

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If f(x) =3x-5 them find values of f(3) and f(-7). please explain step by step​
LenKa [72]

Answer:

f(3) = 4

f(-7) = -26

Step-by-step explanation:

Hi there!

f(x) =3x-5

To find f(3), replace every x with 3:

f(3) =3(3)-5\\f(3) =9-5\\f(3) =4

Therefore, f(3)=4.

f(x) =3x-5

To find f(-7), replace every x with -7:

f(-7) =3(-7)-5\\f(-7) =-21-5\\f(-7) =-26

Therefore, f(-7)=-26.

I hope this helps!

8 0
2 years ago
Please help and explain how to solve these! Thanks
spin [16.1K]
2. C
Slope = 40/8 = 5
Slope of graph c = 5/1 = 5

3. D
Slope = 9/3 = 3
Slope of graph d = 81/27 = 3
3 0
3 years ago
Read 2 more answers
What is 42 decreased by twice some number
harina [27]
Well 42 divided by 2 is 21. than to double check you can do 21 plus 21 equals 42.
5 0
3 years ago
The manager of a factory wants to compare the mean number of units assembled per employee in a week for two new assembly techniq
antoniya [11.8K]

Answer:

The most appropriate inferential statistic test in the present situation is the;

b. Two-sample t-test

Step-by-step explanation:

From the question, we have;

The number of subjects in each sample, n₁ = 100

The number of samples = 2

The nature of the test = To compare the two means

The value of the population standard deviation, σ = Unknown

From the given parameters, we have;

The t-test is a method of inferential statistics for determining whether the difference between the mean of two groups is significant, that is if the observed difference are due to chance, where the groups are likely to have some characteristics that are related

The t-test is utilized when testing an hypothesis, and it is used for small samples, where the population standard deviation is unknown

The types of t-test used are;

a) One-sample t-test

b) Two-sample t-test

c) Paired Sample t-test

Therefore, a two-sample t-test is most appropriate.

3 0
3 years ago
Line a ∥ line b. Find the value of x and y. Please show all work for credit.
olasank [31]

Answer:

x = 12, y =

Step-by-step explanation:

a || b

5x - 7 = 3x + 17   Alternative Interior Angles

x = 12   Algebra

Angle 3x + 17 = 53   Substitution

53 + 4y + 3 = 180   Supplementary Angles

y = 31

5 0
3 years ago
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