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Setler [38]
3 years ago
8

I don’t understand, please help

Mathematics
1 answer:
Gelneren [198K]3 years ago
5 0

Answer:

cosA=root8/3 is the answer

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What is the area of the shaded region?
kolezko [41]

Answer:

110 cm^2

Step-by-step explanation:

The first thing that you need to do is find the area of triangle AFE. The area of a triangle is always base*height/2. So in this case, that would be 10*6 divided by 2, which is 30 cm. Next, you will need to know the area of triangle ECB. Using that same formula, you will get 8*10/2, which is 40 cm. Finally, you will need to find the area of the whole rectangle. The area of a rectangle is always the length times the width. In this case, you would have 10*18, which is 180 cm. To get your final answer, you need to subtract the areas of the unshaded area from the whole area. That would be 180-(30+40), which is 110 cm. I hope this helped!

6 0
2 years ago
What is the simplified value of the expression below?-8 *(-3)
Readme [11.4K]

Answer: +24

Step-by-step explanation: To multiply (-8)(-3), remember that a negative times a negative is always a positive. So (-8)(-3) is +24.

7 0
3 years ago
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Which of the five measures of center (the mean, the median, the trimmed mean, the weighted mean, and the mode) can be calculated
almond37 [142]
Mean because it is the average
3 0
3 years ago
Hailey is knitting a scarf. Each half hour, she adds 3/7 inch to the scarf's length. How much length will she add to the scarf i
BARSIC [14]
Take 3/7 and multiply it by 2 to find out how much she knits in one hour. Then take that value and multiply by 12 to find out how much she knits in 12 hours.

3/7 x 2 = 6/7
6/7 x 12 = 72/7 or 10 2/7.
7 0
3 years ago
Solve for x.<br><br> -3x = 15
castortr0y [4]

Answer:

x = -5

Step-by-step explanation:

1.  Divide both sides by -3

2. Simplify 15/-3 to 5

( 15 divided by -3 is -5)  

5 0
3 years ago
Read 2 more answers
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