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yKpoI14uk [10]
3 years ago
8

Find the exact value of cos(-pi/12)

Mathematics
2 answers:
Verizon [17]3 years ago
7 0

Answer:

0.96592582628

Step-by-step explanation:

dezoksy [38]3 years ago
5 0

Answer:

0.96592 or 0.97

Step-by-step explanation:

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Please tell me !!!!!!
vlada-n [284]

Answer:

H

Step-by-step explanation:

Its H because a square has 4 sides and 58 divided by 4 is 14.5

8 0
3 years ago
If the mean of 25, 28, a, 30 and 32 is 27, then find the value of a.
Anna11 [10]

Answer:

a = 20

Step-by-step explanation:

The mean is calculated as

mean = \frac{sum}{count}

          = \frac{25+28+a+30+32}{5}  = \frac{115+a}{5}

Then

\frac{115+a}{5} = 27 ( multiply both sides by 5 to clear the fraction )

115 + a = 135 ( subtract 115 from both sides )

a = 20

6 0
3 years ago
Erica solved the equation −5x − 25 = 78; her work is shown below. Identify the error and where it was made. (5 points) −5x − 25
Fofino [41]

Answer:

x = -20.6

Step-by-step explanation:

Step 1: −5x − 25 − 25 = 78 − 25

Should be

Step 1: -5x-25+25=78+25

Step 2: -5x=103

Step 3: Divide both sides by -5: x = -20.6

5 0
3 years ago
The answer because I don’t knkw
Veseljchak [2.6K]

wssss

Step-by-step explanation:

ssss

3 0
3 years ago
What is the area of the polygon
Rina8888 [55]
The easiest way to do this is find the area of the large rectangle and subtract the two missing pieces. The length of the large rectangle is 24 and its height is 16. 24x16=384. The area is each of the two missing pieces is 2x2=4. Since there are two of them multiply by two 4x2=8. Then subtract eight from the first area calculated. 384-8=376 square meters
5 0
3 years ago
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