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geniusboy [140]

3 years ago

8

What is the slope of the line?

1 answer:

miskamm [114]3 years ago

5 0

Answer:

zero slope

Step-by-step explanation:

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What is the zero in the quadratic function f(x)= 9x^2-54x-19?

Alex17521 [72]

Answer:

6.33... and 0.333...

Step-by-step explanation:

The quadratic formula is

$x=\frac{-b+\sqrt{b^2-4ac} }{2a}$ .

It is important because while some quadratics are factorable and can be solved not all are. The formula will solve all quadratic equations and can also give both real and imaginary solutions. Using the formula will require less work than finding the factors if factorable. We will substitute a=9, b=-54 and c=-19.

$x=\frac{-b+/-\sqrt{b^2-4ac} }{2a}\\x=\frac{-(-54)+/-\sqrt{(-54)^2-4(9)(-19)} }{2(9)}\\x=\frac{54+/-\sqrt{2916+684} }{18}$

We will now solve for the plus and the minus.

The plus,,,

$x=\frac{54+\sqrt{3600}}{18}\\x=\frac{54+60}{18}\\x=\frac{114}{18}\\x=6.3$

and the minus...

$x=\frac{54-\sqrt{3600}}{18}\\x=\frac{54-60}{18}\\x=\frac{-6}{18}\\x=-0.333...$

8 0

3 years ago

PLEASE HELP IF YOU ARE GOOD AT ALGEBRA 2 MATH

REY [17]

Answer:I think a is:78.3 since it would be the same and since 0 doesn't have a value.

I think b is: 139.5 because all you are doing is subtracting 287.1-147.6

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3 years ago

Multiple {5 0 3-5}×[2-1 2-2]

erma4kov [3.2K]

Do you by any chance have a photo of the problem?

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The correct answers are A, D, and E.

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After taking the first exam, 15 of the students dropped the class. The value 15 describes _____ .

Bess [88]

Answer:

After taking the first exam, 15 of the students dropped the class. The value 15 describes a characteristic of a population - first choice.

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3 years ago