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Mandarinka [93]
3 years ago
11

How can you write the expression (-15)(-15)(-15)(-15) using exponents?

Mathematics
1 answer:
Katarina [22]3 years ago
5 0

Answer:B

Step-by-step explanation:

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Alex is creating an outdoor structure out of two 12 foot boards. The boards must have an angle of elevation
Whitepunk [10]

Answer:

5.0 ft - 5.6 ft

Step-by-step explanation:

Given that the structure is to be made using two 12 foot boards, then we expect the total perimeter to be equal to (2*12)= 24 ft.

Using the angle of elevation, 40° and the width of 8 ft then you can apply the formula for tangent of a triangle where ;

Tan α = opposite side length/adjacent length

Tan 40°= h/8

h= 8 tan 40° = 6.71 ft

Applying the cosine of an angle formula to find the length of the sliding side

Cosine β = adjacent length /hypotenuse

Cosine 40°= 8/ sliding side length

sliding side length = 8/cosine 40° =10.44 ft

Checking  the perimeter = 10.44 +8+6.71= 25.15 ft

This is more than the total lengths of the boards, so you need to adjust the height as;

24 - 18.44 = 5.56 ft ,thus the height should be less or equal to 5.56 ft

h≤ 5.6 ft

6 0
3 years ago
function represented by the table? What is the rate of change for the 1 2 -2 0 -1 -8 у 12 -3 2 7 A. 5 B. 1 C. i nin D. -5​
PSYCHO15rus [73]

Answer:A:0

Step-by-step explanation:hope this helps :)

5 0
3 years ago
215% of 41.8 is what number
salantis [7]
Ith Calculator

41.8 = 100%
215%/100% = 2.15
41.8 x 2.15 = 89.87

Without Calculator

41.8 = 100%

x2
83.6 = 200%

/10
4.18 = 10%

/20 
2.09 = 5%

200 + 10 + 5 = 215%
83.6 + 4.18 +2.09 = <span>89.87</span>
4 0
3 years ago
Read 2 more answers
Help me or you’re racist
devlian [24]

Answer:

club godzilla

Step-by-step explanation:

4 0
3 years ago
Now solve the equation 4(x+3)=8. Remember to: Build the equation on your Equation Mat with algebra tiles. Simplify the equation
Ymorist [56]

Answer:

x=-1

Step-by-step explanation:

4(x+3)=8

4x+12=8

4x=-4

x=-1

3 0
3 years ago
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