Average: about 87%
Her english grade affects her average because it is the lowest out of all of the grades which brought her average grade down.
not sure about this: To bring her average higher, she should probably try more in english or study. (not sure about this one)
Step by Step:
Add up all of her scores:
86 + 72 + 93 + 87 + 93 + 100 + 80
it equals 611
Since we added up 7 scores, we divide 611 by 7
611 divided by 7 is 87.285...
So her average is about 87%
<span>8x^2-50
= 2(4x^2 - 25)
= 2(2x + 5)(2x - 5)
hope it helps</span>
Answer: 8 root 2 or 11.3
Step-by-step explanation:
square 16 and divide by two to find square of other sides. Then root it to find answer
So PEMDAS so first you distribute the -30(2-x) and get -120-(-60x) or -120+60x
then you do the rest
300-120+60x
180+60x
factor out the 60
60(3+x)
but the simplest form is 180+60x but both should work
