49w² -112w + 64
first, you have to find 2 numbers that add up to equal -112, but also multiply together to get a product of 3136 (49 * 64)
two numbers that add to -112 and multiply to equal 3136 is -56 and -56
we can add them into the equation by putting them in for -112x
49w²-56w-56w+64
we now look at what the first 2 numbers have in common and what the last two numbers have in common
49w² and -56w both have w and 7 in common so we can divide 7w
7w(7w -8)
-56w and 64 both have -8 in common so we can divide by -8
-8(7w-8)
now we take the 2 numbers on the outside and bring down the numbers in the brackets
(7w-8)(7w-8)
(7w-8)²
Answer:
< ABC = 80
Step-by-step explanation:
Inscribed Angle = 1/2 Intercepted Arc
< ABC = 1/2 ( 160)
< ABC = 80
Plug -6 in for x and solve.
y = (-1/3)(-6) + 5
y = 2 + 5
y = 7
the answer is c 0.81-0.46=0.35 hope this helps