400 cubic meters of gravel is needed to make 850 cubic meters of concrete.
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Answer:
m= -12
Step-by-step explanation:
ANSWER
1. No solution
2. 4 and 6
3. 81
EXPLANATION
1. The given quadratic equation is
This implies that:
There is no real number whose square is negative one.
This quadratic equation has no solution.
2. The given quadratic equation is
We split the middle term with -6,-4 because their product is 24 and their sum is -10
We factor by grouping
We have x=4 and x=6.
3. The given quadratic equation is
We the square of half the coefficient of x to both sides of the equation.
The correct choice is C.
Answer: 64 feet.
Explanation:
Perimeter formula: 2l + 2w
Area formula: l•w
Length = 3w
Area = 192 ft
192 = (3w) • w
192 = 3
192 ÷ 3 = 3
÷ 3
64 =
=
8 = w
Width = 8
Length = 3(8) = 24
Perimeter = 2(24) + 2(8) = 64 feet.