Answer:
D
Step-by-step explanation:
since her test average for the first 8 tests is 80, the sum of all the scores for the first 8 tests is 640. Since her 9th test is 71, we do 640+71=711. To find the average of all 9 tests, we do 711/9 = 79
D
Parelell lines have the same slope
y=mx+b
m=slope
given
y=-3x+6
slope is -3
so
y=-3x+b is our equation
find b
use (-4,7)
x=-4 and y=7
7=-3(-4)+b
7=12+b
-5=b
y=-3x-5 is da equation
⭐x=7 because
10x+65=135
10x=70
x=7
28=4y-4
32=4y
⭐y=8
I hope this helps
Area of rectangle = length x width
so width = area / length = (<span>x^2-x-72) / (x+8); after factorizing
width = (x-9)(x+8)/(x+8)
= x - 9
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Answer:
6I a missed opportunity for this one and a missed period in hindi and I think its aaaaaaaeeeeeeee
Step-by-step explanation:
hhhhgggggg and in a statement to be more of the story