Lydia read 1/5 of her book last week. this week she read 3 times as much as she read last week. write an expression to show how
1 answer:
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Answer:
The volume is 196 cubic yards
Step-by-step explanation:
Given
Required
The volume
The volume is given as:
Where:
So, the equation becomes
Answer:
2, -6
Step-by-step explanation:
x^2 + 4x - 12
A = 1
B = 4
C = -12
i used the "X" method to solve for the solutions. i think it's easier than using the quadratic formula but it doesn't always work
for the "X" method you have to multiply your A value and your C value together so 1 x (-12) = -12. that is going to be the top part of the X
the bottom part of the x will be your B value which is 4
we have to find multiples of -12 that will also add to 4
so -2 and 6 multiply to -12 but also add to 4 so we know these numbers will work
i added added two drawings to show how i found the solutions using the "X" method and the quadratic formula
