Answer:
side is 35
Step-by-step explanation:
use pythagoream theroem
21^2 +28^2 = c^2
441+784=c^2
1225 = c^2
take the square root
c=35
the side is 35
Answer:
Step-by-step explanation:
y=k
60=k
=k6
k=60/6 =10
This is your equation
y=10
Put the numbers in
80=10
80/10=8 then you have to square this so
=64
x=64
Step-by-step explanation:
(x^3 - 9x) divided by (x^3 + x^2 - 6x)
= x(x^2 - 9) divided by x(x^2 + x - 6)
= x(x + 3)(x - 3) divided by x(x - 2)(x + 3)
= (x - 3)/(x - 2).
ANSWER: 8/21
Step:
1. Find the GCF (Greatest Common Factor)
The two denominator which is the bottom number have to be the same ALWAYS when adding and subtracting the fraction. So to find the GCF, you keep multiplying until you see the same number, only use the bottom number to find the GCF
7: 7, 14, 21, 28
3: 3, 6, 9, 12, 15, 18, 21, 24, 27
GCF= 21
2. 5/7 -1/3
Multiple both to get 21
5/7 x 3/3 = 15/21
1/3 x 7/7 = 7/21
3. Sove
15/21 - 7/21
= 8/21
