Answer:
<h3>11.8 feet</h3>
Step-by-step explanation:
Given
Length of the ladder = 12foot
angle of elevation = 80 degrees
Required
Height of the wall (opposite side)
The set up will form a right angled triangle where
length of the ladder is the hypotenuse
height of the wall is opposite;
Using SOH, CAH, TOA trig identity
According to SOH
sin 80 = opp/hyp
sin80 = opp/12
opp = 12sin80
opp = 11.82 feet
Hence the height of the wall is 11.8feet (to the nearest tenth)
D. 12 inches
hope this helps
The correct answer is D) 4x + 3y = 90.
x = pairs of socks
y = pairs of shoes
90 = total cost of the sum of socks and shoes
Combining these with the given quantities for each variable:
4x + 3y = 90
