Answer:
x = 4
Step-by-step explanation:
7x + 8 = 5x + 16
- 8 = - 8
7x = 5x + 8
-5x = -5x
2x = 8
/2 = /2
x = 4
Y=3/4(8)-5
y=24/4-5
y=6-5
y=1
To calculate how high the ladder is off the ground we shall use he formula:
sin θ=opposite/ hypotenuse
from the information given:
from angle of elevation we shall have θ=90-70=20°
hypotenuse=length of the ladder=32 ft
opposite,x= distance off the ground
thus plugging the values in the formula we get:
sin 20=x/32
thus
x=32 sin 20
x=10.94465 ft
x~10.9 ft
the correct answer should be 30.1 ft
Answer:
a
Step-by-step explanation:
18 is my answer. You should still try to do the work yourself just to make sure its correct
Happy studying ^-^
