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2 years ago

Help please Geometry test

Mathematics

1 answer:

ahrayia [7]2 years ago

6 0

Step-by-step explanation:

To find x,

$21x - 9 = 117$

$21x = 126$

$x = 6$

To find arc AB,

$21(6) - 9 = 117$

To find Arc AE,

$117 + x = 180$

$x = 63$

Arc ABC,

$117 + 63 = 180$

ACE

$180 + 27 + 90 = 297$

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2 years ago

Find (f+g)(x) if f(x)=5x-2 and g(x)=2x+1 A. 7x-1 B. 7x-3 C. 3x-1 D. 4x-3

guajiro [1.7K]

This is an addition problem.

Rearrange the given equations as

+ f(x)=5x-2
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5 0

2 years ago

Read 2 more answers

Write an equation in slope-intercept form of the line that passes through (6,-2) and (12,1)

yarga [219]

Equation in slope-intercept form of the line that passes through (6,-2) and (12,1) is:

$y =\frac{1}{2}x-5$

Step-by-step explanation:

Given points are:

(x1,y1) = (6,-2)

(x2,y2) = (12,1)

The slope intercept form is:

$y=mx+b$

We have to find the slope first

$m =\frac{y_2-y_1}{x_2-x_1}\\=\frac{1-(-2)}{12-6}\\= \frac{1+2}{6}\\=\frac{3}{6}\\=\frac{1}{2}$

Putting the value of slope

$y = \frac{1}{2}x+b$

To find the value of b, putting (12,1) in the equation

$1 = \frac{1}{2}(12)+b\\1 = 6+b\\b = 1-6\\b=-5$

Putting the values of m and b

$y =\frac{1}{2}x-5$

Hence,

Equation in slope-intercept form of the line that passes through (6,-2) and (12,1) is:

$y =\frac{1}{2}x-5$

Keywords: Equation of line, slope-intercept form

Learn more about equation of line at:

#LearnwithBrainly

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2 years ago