The length of the hypotenuse of a right triangle can be found using the Pythagorean theorem, which states that the square of the length of the hypotenuse equals the sum of the squares of the lengths of the other two sides.
Answer: -5x - 2
Step-by-step explanation:
Combine like terms: (3x - 8x) + (3 - 5) → -5x - 2 :)
Step-by-step explanation:
20+8+5=33
33×3=99
hope it helps broo
The answer is 156 because 50% of 104 is 52, and if you add the two together it's 156
To prove that Amy's answer to the equation is correct, we can use two methods:
First, we can use the quadratic formula and find the solutions. Then compare these with Amy's answer.
Second, we can perform checking on which we substitute each in the problem and result should be equal to zero.
Let us use the second option, perform checking for x=7/2.
2X²+ 5X-42=0
2*(7/2)² +5(7/2) - 42=0
24.5+15.5 - 42=0
42-42=0
0=0
Perform checking for x= -6
2(-6)²+5*(-6) -42=0
72-30-42=0
42-42=0
0=0
Therefore, Amy's answer is correct.
