$20.00 - 15.24 = 4.76
4.76 Is the change liz get back from a twenty dollar bill.
Answer:
C
Step-by-step explanation:
C: x + y = -4
Given:
bottom of the plank or ground is 9 feet from the wall
length of the plant is 41 ft
height of the wall is unknown.
Let us use the Pythagorean theorem.
a² + b² = c²
a² + (9ft)² = (41ft)²
a² + 81 ft² = 1,681 ft²
a² = 1,681 ft² - 81 ft²
a² = 1,600 ft²
√a² = √1,600 ft²
a = 40 ft
The height of the wall is 40 ft.
876.405, 887.053, 887.208
It is just the nearest number.