Answer:
D
Step-by-step explanation:
Using the Pythagorean Theorem, the side needs to be found by subtracting a to c then square root b to get rid of the square. Round 12.96 to 13
Answer:
C
Step-by-step explanation:
5 more than twice a number
(A number)=variable=x
2x+5<20
Subtract 5 from both sides
2x<15
Divide by 2
x<7.5
Any number below 7.5 (can't be 7.5 though)
Answer:
x-1 = 0 or x-7 =0
x=1 or x=7
Step-by-step explanation:
(x-1) (x-7) =0
Using the zero product property
x-1 = 0 or x-7 =0
x-1+1 =0 +1 or x-7+7 =0+7
x=1 or x=7
Answer:
X=4,4
Step-by-step explanation:
2 x^2 – 16 x + 32 = 0
2(x^2-8x+16)=0
X^2-(4+4)X+16=0
x^2-4x-4x+16=0
x(x-4)-4(x-4)=0
(x-4)(x-4)=0
X=4,4
So the solution is X=4,4
