Answer: she made a sign error when multiplying and should have had 256 as a final answer
Step-by-step explanation:
When multiplying negatives, it you multiply an even number of negatives, the answer is a positive. And vise versa.
Answer:
I'm pretty sure it is the 4th answer (15.24)
Step-by-step explanation:
Answer:
roots: 2 ± (1/2)√42
-8
axis of symmetry: x = -b/(2a) is x = ---------------- = 2
2(-2)
vertex: (2, f(2) ) = (2, -2(2)^2 + 8(2) + 13 ), or (2, 21)
Step-by-step explanation:
First, let's determine the roots of this quadratic, using the quadratic formula. Here the coefficients are -2, 8, 13.
Thus, the discriminant b^2 - 4ac is 8^2 - 4(-2)(13), or 64 + 104, or 168. Because the discriminant is positive, we know that there are two different real roots.
They are:
-8 ± √168 -8 ± 2√42
x = --------------------- or x = --------------------- = 2 ± (1/2)√42
-4 -4
The rate should be $35. The agency would be able to rent 175 cars. The maximum income= 35 * 175 = $6125
Answer:
y = (1/4)x + 0
or
y = (1/4)x
the (1/4) is supposed to be a fraction of 1 in the numerator and 4 in the denominator
Step-by-step explanation:
