Answer:
(5,-4) and (-5,6)
Step-by-step explanation:
Given:
Solve it. First, express y in terms of x from the second equation:
Substitute it into the first equation:
Apply zero product property:
So,
When 
then 
When 
then 
We get two solutions: (5,-4) and (-5,6)
The rate of change of Pete's height from 3 to 5 years can be determined as,
Thus, the required rate of change from 3 to 5 years is 4 in/year.
X + 3x = 496
x = 496/4
X = 124
Another Number equal to 496-124 equal to 372
Sin is the measure of the opposite leg over the hypotenuse from the given angle:
opposite/hypotenuse
We must find the sin of Angle A, and in order to do so we must find the opposite leg and hypotenuse:
opposite leg/hypotenuse
8/10
Simplify:
8/10 = 4/5
Hence, the sin of <A is 4/5
