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hichkok12 [17]
3 years ago
9

How to find excluded values ?

Mathematics
1 answer:
Inessa [10]3 years ago
5 0
Hello,

The method is to find the roots of the denominator.

x²-2x-15=x²+3x-5x-15=x(x+3)-5(x+3)=(x+3)(x-5)

Roots are x=-3 and x=5

Answer C
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Can you help on number 2 please
REY [17]

Hi!

The sum of all angles on a line is 180 degrees.

y = 180 - 2x

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3 years ago
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9y = 3y Combine the like terms
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3 years ago
Henry was thinking of a number Henry halves it and gets a an answer of 12.4 what was the original number
jeka94
Answer: 24.8
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3 years ago
find the value of r so that the line that passes through (5, r) and (2, -3) has a slope of 4/3. a. 1 b. 7 c. (13/9) d. -1
Margaret [11]
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Slope = <span>(-3 - r) / -3 = 4/3

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4 0
3 years ago
Find the area of the regular polygon. Round to the nearest tenth.
mojhsa [17]

Given:

Side length = 12 in

To find:

The area of the regular polygon.

Solution:

Number of sides (n) = 6

Let us find the apothem using formula:

$a=\frac{s}{2 \tan \left(\frac{180^\circ}{n}\right)}

where s is side length and n is number of sides.

$a=\frac{12}{2 \tan \left(\frac{180^\circ}{6}\right)}

$a=\frac{6}{ \tan (30^\circ)}

$a=\frac{6}{ \frac{1}{\sqrt{3} }}

$a=6\sqrt{3}

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A=216 \sqrt{3}

A=374.1 in²

The area of the regular polygon is 374.1 in².

4 0
4 years ago
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