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3 years ago

5

Which of the following sets of points forms a linear function?

1 answer:

sukhopar [10]3 years ago

7 0

A. x=0, y=a*0+b=5, b=5
x=1, y=a*1+5=8, a=8-5, a=3
x=2, y=2*3+5=11
x=3, y=3*3+5=14

A is the answer

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3 years ago

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Complete 2,3 for 38 points.

d1i1m1o1n [39]

Answer:

(2) The number is 75 :-

2-No

3-Yes

4-No

5-Yes

6-No

8-No

9-No

10-No

25-Yes

(3) The number is 42 :-

2-Yes

3-Yes

4-No

5-No

6-Yes

8-No

9-No

10-No

25-No

$✌ Hope it helps!$

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3 years ago

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A business major wants to determine whether the variation in advertising costs of hair salons is different from the variation in

olchik [2.2K]

Answer:

Test value = 3.49

Step-by-step explanation:

We are given the following in the question:

$S_1 = \$ 23, n_1 = 12\\S_2 = \$ 43, n_2 = 8$

Alpha, α = 0.05

First, we design the null and the alternate hypothesis

$H_{0}: \sigma_1^2 = \sigma_2^2\\H_A: \sigma_1^2 \neq \sigma_2^2$

We use F-test to determine the difference in variation between the two samples.

Formula:

$F_{stat} = \displaystyle\frac{S_2^2}{S_1^2}\\\\(As ~S_2 > S_1)$

Putting all the values, we have

$F_{stat} = \displaystyle\frac{1849}{529} = 3.49$

Now, $F_{critical} \text{ at 0.05 level of significance, degree of freedom(8-1,12-1)} = 3.01$

Comparison:

$F_{stat} > F_{critical}$

We reject the null hypothesis and accept the alternate hypothesis.

Thus, there is variation in advertising cost of salon and the advertising cost of nails.

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3 years ago

What is the standard form of this complex number?

lianna [129]

Answer:

b is the answer

Step-by-step explanation:

3/5+sqrt-2/5

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On a horizontal number line, -43 is to the left of -35. Enter an inequality that represents this statement

hichkok12 [17]

Answer:

$-43 < -35$

Step-by-step explanation:

Given

-43 to the left of -35

Required

Represent as inequality

-43 to the left of -35 implies that -43 is less than 35.

In inequality, less than <

So: $-43 < -35$

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