CPhill

We  knpw an opposite side(20) ......the ladder forms the hypoteneuse of  right tringle... we can use the sine inverse to find this

Sin^-1(20/30)  = about 41.81 degrees

2x+9>25    subtract 9 from both sides

2x > 16      divide both sides by 2

x > 8

Set this up as a proportion

(1/6)d / (3/5 h)  = x / (1 hr)     cross-multiply

(1/6)d (1 hr)  = (3/5)hr (x)       cancel the "hr" on each side

(1/6)d  = (3/5) x       multiply by 5/3 on both sides

(1/6)(5/3)d = x   = (5/18)d   in one hour

I think you might be asking to graph y =4(3/2)^x     ???

The area of the square is (12in) ^2

The area of the triangle is (1/2)(12in)(8in)

Compute these separately...... then, add them together to get your answer.

Thanks, h7.........(I believe the answer should be in sq. yds. rather than sq inches)

To find the area, just multiply the width (12 yd) by the length (height) (7 yd).

23578246 minutes / 60 = 392970.7666666666666667 hours

392970.7666666666666667 hours / 24 = about 16,373.78 days

If we have

0 = e ^(x^2 / 2) ......this has no answer because an exponential (e raised to a power) can never  = 0

(3 /1) / (3 /4)      change to multiplication and  invert the second fraction

(3 /1) * (4 / 3)   = 4    ...... just as Anonymous found !!!