Answer:
B -9(9x-3)
Step-by-step explanation:
b/c -9(9x-3) means -9×9x-(-3)
= -81x+27
if you say why -(-3) is +27, I will say b/c negative times negetive it give us positive. and if you they why we don't add -81x and 27, I will say b/c they are not like terms.
like terms : are terms with the same variable and same exponent.
example:2x and 3x,5xy and 9yx and etc....
if it helpful ❤❤
THANK YOU
Answer:
206
Step-by-step explanation:
What do you need help with
Answer:
Step-by-step explanation:
She ran on 2 weekends.
<u>We need to add:</u>
<u>Solve:</u>
- 2 + 3 = 5
- = 4/5 + 1/5 = 1
- = 5 + 1
- = 6.
Alexandra ran 6 miles in total.
The midpoint of BC = D
x(mid) = (x(B) + x(C)) / 2 = (-2 + 4) / 2 = 1
y(mid) = (y(B) + y(C)) / 2 = ( 3 + 1) / 2 = 2
=> D(1,2)