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Harrizon [31]
3 years ago
14

-13/20 - 7/5=? Its fractions.

Mathematics
1 answer:
Kipish [7]3 years ago
7 0

Answer: 41/20

Step-by-step explanation:

there is a possibility that this is incorrect bb srry

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Solve for x 4.5 (8 - x) + 36 = 102 - 2.5 (3x + 24)
CaHeK987 [17]

Answer:

x = -10

Step-by-step explanation:

expand

simplify 36 - 4.5x + 36 to -4.5x + 72

simplify 102 - 7.5x - 60 to -7.5x + 42

add 7.5x to both sides

simplify -4.5x + 72 + 7.5x to 3x + 72

subtract 72 from both sides

simplify 42 - 72 to -30

divide both sides by 3

simplify 30/3 to 10

Answer: x = -10

4 0
2 years ago
Variance is: Multiple Choice the average squared deviations about the mean of a distribution of values. an empirically testable
DENIUS [597]

Multiple choice answers are clearly defined as below for clarity:

A. the average squared deviations about the mean of a distribution of values.

B. an empirically testable statement that is an unproven supposition developed in order to explain certain phenomena.

C. the error made by rejecting the null hypothesis when it is true.

D. a statement that asserts the status quo; that is, any change from what has been thought to be true is due to random sampling order.

E. a statement that is the opposite of the null hypothesis

Answer:

A. The average squared deviations about the mean of a distribution of values.

Explanation:

A. the average squared deviations about the mean of a distribution of values. Correct

Standard deviation is how data is distributed around the mean. It is also the square root of the Variance. Therefore, the variance is the square of the standard deviation which is distributed around the mean.

B. an empirically testable statement that is an unproven supposition developed in order to explain certain phenomena. Incorrect

This is false as this is rather the definition for hypothesis.

C. the error made by rejecting the null hypothesis when it is true. Incorrect

This is false as this is the definition for the probability of committing a type I error

D. a statement that asserts the status quo; that is, any change from what has been thought to be true is due to random sampling order. Incorrect

This is false as this defines what a null hypothesis is.

E. a statement that is the opposite of the null hypothesis. Incorrect

The opposite of the null hypothesis is alternative hypothesis.

6 0
2 years ago
PLEASE HELP ILL GIVE BRAINLIEST
cestrela7 [59]
Yea I wanna say you have the right answer
8 0
3 years ago
What is 4x-18 rewritten 4 different ways?
nasty-shy [4]
-18+4x
2(2x-9)
4x=18
-4x=-18
x=18/4
-x=-18/4
7 0
3 years ago
What is the fourth term of the arithmetic sequence described by the explicit formula an = 2 + (n - 1)25?
Elis [28]

Answer:

52

Step-by-step explanation:

plug in 3 if we're going by 0,1,2,3

2+ (3-1)25

2+50

52

3 0
3 years ago
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