determine whether or not a triangle with side lengths 12, 35, and 37 is a right triangle and show work
1 answer:
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Answer:
The yearly rate of appreciation of the comic book is r=0.017 or r=1.7%
Step-by-step explanation:
we have
This is a exponential function of the form
where
a is the initial value
b is the base
In this problem
a=$1,350
b=1.017
Remember that
b=1+r
so
1+r=1.017
r=1.017-1=0.017
therefore
The yearly rate of appreciation of the comic book is r=0.017 or r=1.7%
Answer:
x ≈ 1.32, x ≈ - 5.32
Step-by-step explanation:
Given
x² + 4x - 7 = 0 ( add 7 to both sides )
x² + 4x = 7
To complete the square
add ( half the coefficient of the x- term )² to both sides
x² + 2(2)x + 4 = 7 + 4
(x + 2)² = 11 ( take the square root of both sides )
x + 2 = ± ( subtract 2 from both sides )
x = - 2 ±
Thus
x = - 2 - ≈ - 5.32 ( to 2 dec. places )
x = - 2 + ≈ 1.32 ( to 2 dec. places )