Let:
the ladder length = l
the distance from the wall and the ladder = x
cos (39) = x / l
x = l * cos (39) = 14 * cos (39) = 10.88 ft
Hope that helps
Answer:
cos x = 16 ÷ 20
cross multiply
20 cosx = 16
Divide each side by 20
cos x =16 ÷ 20
x = cos inverse of 16 ÷ 20
x = 36.869
x = 37°
Step-by-step explanation:
x represents unknown angle
9514 1404 393
Answer:
20 minutes
Step-by-step explanation:
The trains are separating at the rate of 80 +70 = 150 km/hour. The time required to be 50 km apart is then ...
time = distance/speed = (50 km)/(150 km/h) = 1/3 h = 20 minutes
11 for $12
hope this helps!
Answer:
We would need to add 90+10 first instead of 10+4.8.
Step-by-step explanation:
When evaluating expressions, we follow the order of operations:
P (parentheses); E (exponents); M/D (multiplication/division from left to right); and A/S (addition/subtraction from left to right). The first thing we look for is parentheses.
When we use the associative property as Morgan did to rearrange the problem, this changes the order we begin in. It does not, however, change the answer.
