Answer:
choice f
Step-by-step explanation:
take ∆ abc
ab^2 = ac^2 + ab^2
400 = 225 + ab^2
ab =√ 175
∆aDB
bd = 20-x
ad^2 = 175 -(20-x)^2
∆acd
225 = x^2 + 175 - 400+ 40x - x^2
225 = -225 + 40x
450 = 40x
x = 45/4
Let's say that Bob is x and James is y
x + y = 180
x = 2y
2y + y = 180
y = 60.
James spent 60 dollars.
Answer:
Step-by-step explanation:
Sides opposite to equal angles are equal.
x = 8
Pythagorean theorem,
y² = 8² + 8²
= 64 + 64
y² = 128
y = √128
y = 11.31
The suquare root is 10. it is a rational number
Answer:
Step-by-step explanation:
