Answer:
<em>A negative correlation is when one variable increse as the other decreases.</em> Is represented with a -1 value in contrast with +1 that represents positive correlations.
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The prime factorization of 400 is
<span>
2 x 2 x 2 x 2 x 5 x 5
</span>
In exponent form:
2^4 x 5^2
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Answer:
$0.55
Step-by-step explanation:
1.5+4.50=6
1.75+4.80 =6.55
6-6.55=0.55
Answer:
f(x) = -1(x+1)² + 9
Step-by-step explanation:
f(x) = -x² - 2x + 8
This is a down-opening parabola. Put the equation into vertex form. The y-coordinate of the vertex is the maximum.
factor out the leading coefficient
f(x) = -1(x²+2x) + 8
Complete the square
coefficient of x term: 2
divide in half: 1
square it: 1²
use 1² to complete the square:
f(x) = -1(x²+2x+1²) + 1² + 8
f(x) = -1(x+1)² + 9
vertex (-1,9)
maximum value of f(x) = 9