Answer:
20
Step-by-step explanation:
Since this is a right triangle, we can use the Pythagorean theorem
a^2 + b^2 = c^2, where a and b are the sides and c is the hypotenuse
15^2 + b^2 = 25^2
225 + b^2 = 625
b^2 = 625 -225
b^2 =400
Take the square root of each side
sqrt(b^2) = sqrt(400)
b = 20
Answer: 9 5/16
ANSWER
The solution is (-1,2)
EXPLANATION
The system is:
y = 2x + 4
and
y = 8x + 10
Equate the two:
2x + 4 =8x + 10
Group similar terms:
8x-2x=4-10
Combine similar terms,
6x=-6
Divide both sides by 6.
x=-1
This implies that ,
y=2(-1)+4
y=2