Answer:
294cm^2
Step-by-step explanation:
0.7*0.7=0.49
0.49*6=2.94m
294cm^2
6x2+1<
6x2<-1
=×2<=-1/6 B is the answer
Answer: B, C, E
Step-by-step explanation:
For us to know if the options are correct, we just have to multiply the length the rope was cut into by the number of pieces and check if it equals 504 centimeter.
A. 12 pieces of 42.3 centimeter long rope.
= 12 × 42.3
= 507.6
This is wrong
B. 15 pieces of 33.6 centimeter long rope
= 15 × 33.6
= 504cm
This is correct
C. 16 pieces of 31.5 centimeter long rope
= 16 × 31.5
= 504cm
This is correct
D. 20 pieces of 25 centimeter long rope
= 20 × 25
= 500cm
This is incorrect
E. 35 pieces of 14.4 centimeter long rope
= 35 × 14.4
= 504cm
This is correct
Therefore, the correct option are B, C and E.
Answer:
Part 1) The square root of b^2-4ac
Part 2) 25
Step-by-step explanation:
Part 1.
In order to determine whether the quadratic equation can be solved by factoring, the square root of b^2-4ac has to be a real number, or else the quadratic can’t be factored. (Not a real number)
Part 2.
Plugging b, a, and c in,
We have 49-24 or 25.
