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mihalych1998 [28]
3 years ago
15

Solve for f. -f +2+4f =8 -3f

Mathematics
2 answers:
Hitman42 [59]3 years ago
5 0

Answer:

f=1

Step-by-step explanation:

sammy [17]3 years ago
4 0

Answer:

F=1

Step-by-step explanation:

-f+2+4f=8-3f

Collect like terms

-f+4f+3f=8-2

6f=6

Divide both sides by 6

f=1

Therefore the answer is f=1

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A set of data items is normally distributed with a mean of 400 and a standard deviation of 60. Find the data item in this distri
Softa [21]

Answer:

The data item is X = 580

Step-by-step explanation:

Normal Probability Distribution:

Problems of normal distributions can be solved using the z-score formula.

In a set with mean \mu and standard deviation \sigma, the z-score of a measure X is given by:

Z = \frac{X - \mu}{\sigma}

The Z-score measures how many standard deviations the measure is from the mean. After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X. Subtracting 1 by the p-value, we get the probability that the value of the measure is greater than X.

Mean of 400 and a standard deviation of 60.

This means that \mu = 400, \sigma = 60

z=3

We have to find X when Z = 3. So

Z = \frac{X - \mu}{\sigma}

3 = \frac{X - 400}{60}

X - 400 = 3*60

X = 580

The data item is X = 580

6 0
3 years ago
Use the distributive property to remove the parentheses.<br> -6(4u-2y-3)
PilotLPTM [1.2K]
Using the distributive property it would be -24u12y18
4 0
3 years ago
YALL HELP!!!!!!!!!!!!!!
QveST [7]

Answer:

The second choice

Step-by-step explanation:

In most cases, the dependent variable is the y value in the graph.

The dependent variable is the thing that is being measured or changing.

In this example it can't be the time because time is always moving at a constant rate and there is nothing that can be done to change it.

8 0
3 years ago
Help me simplify 7x-(x-y) and 9a-(2b-a)
jonny [76]
7x-(x-y) = 7x - x + y = 6x + y

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hope it helped
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3 years ago
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I really really need help
balu736 [363]

Answer:

i have no idea

Step-by-step explanation:

8 0
3 years ago
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