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TiliK225 [7]
3 years ago
14

Andrew wants to build a slide for his daughter’s tree house. If the tree house is 5 ft off the ground and he wants the slide to

make a 30° angle with the ground, how long a sliding board does he need to buy? (Round to the nearest foot.)
Mathematics
1 answer:
Lapatulllka [165]3 years ago
3 0
Andrew is wanting to build a slide for his daughter's tree house in the backyard. The tree house is approximately 5 feet off the ground and he wants the slide to have a 30 degree angle with the ground. He will need to by 10 ft of sliding board. 
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Which methods will determine 70% of 42?
Dennis_Churaev [7]

Answer:

C

Step-by-step explanation:

Given

(3x + 7)(2x - 6)

Each term in the second factor is multiplied by each term in the first factor, that is

3x(2x - 6) + 7(2x - 6) ← distribute both parenthesis

= 6x² - 18x + 14x - 42 ← collect like terms

= 6x² - 4x - 42 → C

5 0
2 years ago
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A bag contains
UkoKoshka [18]

Step-by-step explanation:

10/20 per try, .2multiply by 100 tries = 20

5 0
3 years ago
Can someone help me with this and have it step by step please
Sladkaya [172]

Answer:

should also be 40

Step-by-step explanation:

the measure of angle 1 is equivelent to angle two, since they both lie ont he same line.

8 0
3 years ago
Five years ago I was 5 times older than my son. In 8 years’ time I will be 3 times older than my son. How old am I today?
o-na [289]

Let x = Parent's age now  y = son's age now

Then, x-5 = parent's age five years ago

        y-5 = son's age five years ago

     So, x-5 = 5(y-5)

          Simplify to get x - 5y = -20

Parent's age 8 years from now = x+8

Son's age 8 years from now = y+8

    So, x+8 = 3(y+8)

           Simplifying, we have x - 3y = 16

We have the system of equations:  x - 5y = -20

                                                  x - 3y = 16

Subtract the equations to obtain -2y = -36

                                                  y = 18

                                                  x = 70

Parent is 70 years old and the son is 18 years old.  

6 0
3 years ago
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Diego went out for a walk. He walked for 20 minutes East at a rate of 5km/hour. He then turned around and walked west for 10 min
iVinArrow [24]
Positive 20 and negative 10 is a net amount of 10. 10 minutes is 1/6 of an hour. 5*1/6=5/6km
3 0
3 years ago
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