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AnnZ [28]
3 years ago
11

HELP!!

Mathematics
1 answer:
Kazeer [188]3 years ago
6 0

Answer:

(D)Lucita's estimate is too high.

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45
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Decide whether the change is an increase or a decrease, and find the percent change. Original number = 35; New number = 16.... P
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Step-by-step explanation:

3 0
3 years ago
HELP!
maksim [4K]

<u>Part A</u>

<u />4x^2 -7x-15=0\\\\(4x+5)(x-3)=0\\\\x=-\frac{5}{4}, 3

So, the x-intercepts are \boxed{\left(-\frac{5}{4}, 0 \right), (3,0)}

<u>Part B</u>

The vertex will be a minimum because the coefficient of x^2 is positive.

The x-coordinate of the vertex is x=-\frac{-7}{2(4)}=\frac{7}{8}

Substituting this back into the function, we get f\left(\frac{7}{8} \right)=4\left(\frac{7}{8} \right)^2 -7\left(\frac{7}{8} \right)^2 -15=-\frac{289}{16}

So, the coordinates of the vertex are \boxed{\left(\frac{7}{8}, -\frac{289}{16} \right)}

<u>Part C</u>

Plot the vertex and the x-intercepts and draw a parabola that passes through these three points.

The graph is shown in the attached image.

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2 years ago
A blank is a fraction with a denominator of 1
Advocard [28]
A whole number is a fraction with a denominator of one
5 0
3 years ago
Find the diameter and radius of a circle with a circumference of 16 pi in
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16 pi?  well... 16 pi = 50.2654824574. So... the diameter would be 16 and the radius would be 8. I think!
4 0
3 years ago
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