Answer:
a, -b
Step-by-step explanation:
When x is a, the function becomes
as you see, a-a is 0, and as your whole function is multiplied by this, it makes it 0.
As you see -b+b is 0, and once again, this would make the whole function 0.
5[6+(3•8)]
5(6+24)
30+120
=150
E(1,-4) F(1,-6) G(-3,-5) H(-3,-3)
Answer:
Step-by-step explanation:
The two triangles are similar and therefore we can set up a proportion
9/(9 + 72) = (3x - 20)/(3x - 20 + 56) Combine like terms on the right
9/(81) = (3x - 20)/(3x + 36) Cross multiply
9(3x + 36) = 81 (3x - 20) Remove the brackets.
27x + 324 +1620 = 243x Add 1620 to both sides
27x + 324 + 1620 = 243x Subtract 27x from both
1944 = 216x divide both sides by 216
x = 9
If you feel comfortable canceling the size of the numbers can be reduced.
9/81 = 1/9
1/9 = (3x - 20)/(3x + 36)
3x + 36 = 9(3x - 20)
3x + 36 = 27x - 180
36 + 180 = 24x
216 = 24x
216/24 = x
x = 9
There is another cancelation possible, but this is simple enough.
Answer:
B
Step-by-step explanation:
It 4 times 2 = 8 and -2+10=8
