Answer: 
Step-by-step explanation:
By the geometric mean theorem,
So, by the Pythagorean theorem,
Answer:
x > -5
Step-by-step explanation:
4-x < 9
-x < 9-4
-x < 5
x > -5
Answer:
y = 3
Step-by-step explanation:
Combine like terms
Move all terms not containing y to the right side of the equation.
Divide both sides by 2
y = 3
Plz mark me brainliest!
It's ok if u don't...lol
I hope this helped!!
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%
Square root of 324 = 18 inches.
Perimeter = 18 inches x 4 = 72 inches.
18 times 4 because each side of square tile equals to 18 inches and there's 4 sides.
The answer is 72 inches.
Hope this helps.
