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gizmo_the_mogwai [7]
2 years ago
15

Simplify: 3a + 5a 20points

Mathematics
1 answer:
Ber [7]2 years ago
7 0

Answer: 8a

Step-by-step explanation:

3a + 5a

8a

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The standard deviation for a set of data is 9.5. The mean is 205.
Anon25 [30]

If the standard deviation for a set of data is 9.5. The margin of error is: 19.5.

<h3>Margin of error</h3>

Using this formula

Margin of error=Standard deviation×Mean

Let plug in the formula

Margin of error=205 × 9.5%

Margin of error = 19.475

Margin of error = 19.5 (Approximately)

Therefore If the standard deviation for a set of data is 9.5. The margin of error is: 19.5.

Learn more about margin of error here:brainly.com/question/14420824

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3 0
1 year ago
8x-6+2x=44 what does x equal
klio [65]

Answer:

x=5

Step-by-step explanation:

Isolate the variable by dividing each side by factors that don't contain the variable.

7 0
2 years ago
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A study of high school students in a college preparatory curriculum was designed to measure the effect of time spent doing homew
sammy [17]
C. grades in courses because it depends on how much the students study to get their grades
6 0
2 years ago
Can someone please help me ??
adelina 88 [10]

Answer:

C

Step-by-step explanation:

The values are not vectors so ST/SR should be 3

6 0
1 year ago
Which ordered pairs are solutions to the equation?
soldier1979 [14.2K]


To solve this you want to plug in your x's and y's to see if they match.

A. 3(11)-4=33-4=29 and 29 is not equal to 5 so A is not a solution

B.3(5)-4=15-4=11=11  3(3)-4=9-4=5 and 5 is not equal to 2 so B is not a solution

C. 3(2)-4= 6-4=2 2 is not equal to 3 so C is not a solution

D is the answer. 3(5)-4=11 and 3(2)-4= 2

6 0
3 years ago
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