Cosα=x/L
L=x/cosα, we are told that the ladder base is 48 ft from the base of the wall and α=39° so:
L=48/cos39 ft
L≈61.76 ft (to nearest hundredth of a foot)
In step 3, Mark forgot to multiply 5 · 5, so he ended up with 5 in the denominator instead of 5 · 5 = 25
So the difference of speed will be 25-17 = 8 mph the last one choice
hope helped
It would be smarter to buy it for 3.39 because you will spend money on gas drive Ig to the other store and you will spend more money
just multiple the numbers.
for example 7×7 is - 49y
and 3×16 is - 48y