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ohaa [14]
3 years ago
13

A 15 foot board rest against a wall. The angle that the board makes with the ground is 60 degrees. How far is the base of rhe bo

ard away from the wall
Mathematics
1 answer:
Iteru [2.4K]3 years ago
5 0

Answer:

7.5'

Step-by-step explanation:

Use trigonometry.

Draw it out.

the hypotenuse is 15.

You want to find the adjacent side.

Use cosine (the adjacent over hypotenuse)

cos60=A/15

15cos60=A

7.5=A

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The vertices of a parallelogram are A(x1,y1), B(x2,y2), C(x3,y3), D(x4,y4)
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3 years ago
Read 2 more answers
LITERAL EQUATIONS: A literal equation is one consisting of all letters (or at least mostly letters). The Latin word literalis me
Crank

Answer:

D. b = r+z

Step-by-step explanation:

Given the expression b-r = z, we are to solve for b. To do this, we will add 'r' to both sides of the equation as shown;

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Since -r+r = 0, substitute:

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Hence the resulting equation when r is added to both sides of the equation is b = z+r

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Step-by-step explanation:

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