Answer:
A
Step-by-step explanation:
Given
x² + 3x - 4 = 6 ( subtract 6 from both sides )
x² + 3x - 10 = 0 ← in standard form
Consider the factors of the constant term (- 10) which sum to give the coefficient of the x- term (+ 3)
The factors are + 5 and - 2, since
5 × - 2 = - 10 and 5 - 2 = + 3, thus
(x + 5)(x - 2) = 0 ← in factored form
Equate each factor to zero and solve for x
x + 5 = 0 ⇒ x = - 5
x - 2 = 0 ⇒ x = 2
solution set is { - 5, 2 } → A
Answer:
9 units
Step-by-step explanation:
The complete question in the attached figure
we know that
If two figures are similar, then the ratio of its corresponding sides is proportional
so
substitute the given values
solve for MV
Multiply in cross
We know that
scale factor=2.5
volume larger warehouse=scale factor³*volume smaller warehouse
volume larger warehouse=2.5³*volume smaller warehouse
volume larger warehouse=[15.625]*volume smaller warehouse
that means
the volume of the larger warehouse is 15.625 times the volume smaller warehouse
the energy and cost is proportional to the volume
so
the new cost is 15.625*$125-----> $1953.12------> $1953
the answer is
$1953
I would say that if the ones add up to 10 or more, they will regroup and put a 1 above the tens column to show the 10
