I got work on my B I got a A
Answer:
Step-by-step explanation:
the discriminat of each quadratic equation : ax²+bx+c=0 ....(a ≠ 0) is :
Δ = b² -4ac
1 ) Δ > 0 the equation has two reals solutions : x = (-b±√Δ)/2a
2 ) Δ = 0 : one solution : x = -b/2a
3 ) Δ < 0 : no reals solutions
in this exerice a = 1 b= -6 c=-5 continu......
Answer:
69cm
Step-by-step explanation:
pls mark this answer
Answer:
I believe The first one is 1.5 and the second one is 12
Step-by-step explanation:
3 divided by two is 1.5
If we multiply 1 by 1.5 we get 1.5
If we multiply 8 by 1.5 we get 12
The question asks for the unit rate when 1/4 of a kilometer is covered in 1/3 of an hour.
Recall that rate is the quotient of two quantities. In our case the numerator is the distance (1/4) of a kilometer, and the denominator is the time: 1/3 of an hour.
So, we perform the following division of fractions:
1/4 diided by 1/3 which is the same as: 1/4 times 3/1 = 3/4
and since we are asked for the UNIT rate, we do the actual division:
The unit rate is 0.75 km per hour.