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nlexa [21]
3 years ago
12

Simplity 9(2.6x + 5y + 5.6x)

Mathematics
1 answer:
gregori [183]3 years ago
7 0

Answer:

73.8x+45y

Step-by-step explanation:

1. Distribute 9 to the numbers inside the parenthesis

23.4x + 45y + 50.4x

2. Combine like terms( in this case the numbers with the x)

73.8x + 45y

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Pi/6 is the reference angle for:
Ksju [112]
Option B. 13π/6 and Option D. 5π/6

To get the reference angle π/6 for the given angles we will check each angle given in the options.
A. 8π/6
Since 8π/6 means 240° which lies in 3rd quadrant. Therefore reference angle of 240°= 240-180 = 60° or π/3
B. 13π/6
13π/6 means 390° which lies in first quadrant.
Therefore reference angle = 390-360 = 30° or π/6
C. 3π/6
Since 3π/6 means 90° therefore reference angle of 90° is the same as 90°.
Or the reference angle is = π/2
D. 5π/6
5π/6 means angle is 150° which lies in second quadrant therefore reference angle of 150° = 180-150 = 30° or π/6
answer is Option B and D.
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2 years ago
What is the perimeter inyards of aroom that is 10 yards wide and 18 yards long​
dimulka [17.4K]
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4 0
3 years ago
If it is April, then there are 30 days in the month.
dimaraw [331]

Answer:

C.

Step-by-step explanation:

It does not have to be April if there are 30 days. If its not April, it can still have 30 days. April does have 30 days.

6 0
3 years ago
Can anyone please help me with this?
dolphi86 [110]

Answer:

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Step-by-step explanation:

6 0
3 years ago
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For students who first enrolled in two year public institutions in a recent​ semester, the proportion who earned a​ bachelor's d
kondaur [170]

Answer:

Null hypothesis =  H_0:p=0.395

Alternate hypothesis =H_a:p>0.395

Step-by-step explanation:

Given : In a recent​ semester, the proportion who earned a​ bachelor's degree within six years was 0.395.

The president of a certain college believes that the proportion of students who enroll in her institution have a higher completion rate.

To Find : Determine the null and alternative hypotheses.

Solution:

In a recent​ semester, the proportion who earned a​ bachelor's degree within six years was<u> 0.395. </u>

Claim : the proportion of students who enroll in her institution <u>have a higher completion rate.</u>

So,null hypothesis =  H_0:p=0.395

Alternate hypothesis =H_a:p>0.395

6 0
3 years ago
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