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olganol [36]
3 years ago
15

Factor the expression using 3 as one factor. 3x−30

Mathematics
1 answer:
posledela3 years ago
6 0

Answer:

3(x - 10)

Step-by-step explanation:

3x - 30 = 3(x - 10)

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Determine if the following statements are true or false, and explain your reasoning. If false, state how it could be corrected.
goblinko [34]

Answer:

a. True

b. False

c. False

d. True

e. True

Step-by-step explanation:

a.

True,

A 99% confidence interval covers more than a 95% confidence interval.

This is because, more potential values must be allowed within the interval, to be more confident that the true population value falls within the interval

b.

False,

Decreasing the significance level will decrease the probability of making a type 1 error because the probability of a Type I error is the same as α.

c.

False,

The evidence is not sufficient to make a conclusion that µ = 5.

d. True

The probability of making a type II error (failing to reject the null hypothesis when it is actually false) is called β (beta).

The probability of not making this error is 1 - β

1 - β + β = 1

e.

True,

Large sample sizes can decrease the margin of error.

Because the relationship between margin of error and sample size is simple is that when the sample size increases, the margin of error decreases and vice versa

7 0
3 years ago
Plz help I need help
klio [65]
Answer would be 5z + 1
4 0
3 years ago
Read 2 more answers
It’s for math pls help
Dmitrij [34]

Answer:

2x-60=180

Step-by-step explanation:

it's my view and I tackle this prob.

3 0
3 years ago
The water tank had a maximum capacity of 84 gallons. If the tank was 2/7 full, how many gallons of water did it have
larisa [96]
If the maximum capacity of the tank is 84 then do 84/7 which is 12 and if it's 2/7 full then your answer is 24
3 0
4 years ago
What restrictions must be made on x, y, and z so that the triple (x, y, z) will represent a point on the y axis? On the z axis?
Aneli [31]

Answer:i) The point on y-axis is (0,y,0)

            ii) The point on z-axis is (0,0,z)

            iii)  The point on x z plane is (x,o,z)

            iv) The point on y z plane is (0,y,z)

Step-by-step explanation:

Explanation:-

i) For every point on x-axis, y-co-ordinate is zero and z- co-ordinate is zero

i .e., y=0 and z=0

The point on x-axis is (x,0,0)

ii) For every point on y-axis, x-co-ordinate is zero and z- co-ordinate is zero

i .e., x=0 and z=0

The point on y-axis is (0,y,0)

iii) For every point on z-axis, x-co-ordinate is zero and y- co-ordinate is zero

i .e., x=0 and y=0

The point on z-axis is (0,0,z)

iv)  For every point on X Z plane then Y=0

The point on x z plane is (x,o,z)

v) For every point on Y Z plane then X=0

The point on yz plane is (0,y,z)

vi) For every point on X Y plane then Z=0

The point on x y plane is (x,y,0)

3 0
4 years ago
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