your math teacher needs help and i am in 6th grade so i need help as well
Let the shorter leg = a.
The longer leg, b = a + 4.
The hypotenuse, c = a + 8
a^2 + b^2 = c^2
a^2 + (a + 4)^2 = (a + 8)^2
a^2 + a^2 + 8a + 16 = a^2 + 16a + 64
a^2 - 8a - 48 = 0
(a - 12)(a + 4) = 0
a - 12 = 0 or a + 4 = 0
a = 12 or a = -4
a = -4 is discarded because it is negative.
a = 12
b = 16
c = 20
The lengths are 12 m, 16 m, and 20 m.
Answer:
-3a^3 + 30a^2 - 75a
Step-by-step explanation:
Multiply 3 by what is inside the parentheses and add like terms.
Answer:
-105
Step-by-step explanation:
a negative times a negative makes it positive so -15(7) which would just equal -105
