Let the ladder length be L, then
sin 70 = 20/L, L = 20/sin70 = 21.3 feet
the length of ladder is 21.3 feet
Answer:
-0.4 = −2/5
Step-by-step explanation:
Rewrite the decimal number as a fraction.
-0.4/1
Multiply to remove 1 decimal places.
-0.4/1 x 10/10 =4/10
Find the GCF.
4 ÷ 2/10 ÷ 2 = 2/5
x = 2/5
-2/5
Get unknowns on one side and know on other side.
Divide both sides by -2
X= -7
Answer:
Step-by-step explanation:
x
=
0
Answer:
y=150+50x
Step-by-step explanation:
Given data
Repair= $150
weekly charge = $50
X=#of weeks and y=total cost.
Hence the expression in slope-intercept form is
y=150+50x
