X^2(2y+5)=240
x^2(2(5)+5)=240
x^2+(10+5)=240
x^2+15=240
minus 15 both sides
x^2=225
sqrt both sides
x=15
Answer: x/2-y^3=1 & x^2+y=4
Step-by-step explanation:
Answer:
incorrect
Step-by-step explanation:
To determine if the triangle is right
If the square of the longest side is equal to the sum of the squares on the other 2 sides then the triangle is right, that is
longest side = 10 and 10² = 100
6² + 8² = 36 + 64 = 100
Thus the triangle is right.
She should have added 6² and 8² and compared that to 10²
