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sdas [7]
3 years ago
9

I need help asap!! Will mark the brainliest of correct!

Mathematics
1 answer:
Anettt [7]3 years ago
7 0

Answer:

15.81

Step-by-step explanation:

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Find the equation of the line through ( - 10, - 8) that is perpendicular to the line through (10,6), (5,5).
Furkat [3]

Answer:

y=-5x-58

Step-by-step explanation:

The equation of a line in slope-intercept form is y=mx+b where m is the slope and b is the y-intercept.

Perpendicular lines have opposite reciprocal slopes.

Anyways we need to find the slope of the line going through (10,6) and (5,5).

To find the slope, we are going to line up the points vertically and subtract vertically, then put 2nd difference over 1st difference. Like so:

 (  10   ,   6)

- (   5   ,   5)

------------------

    5         1

So the slope of the line through (10,6) and (5,5) is 1/5.

The slope of a line that is perpendicular will be the opposite reciprocal of 1/5.

The opposite reciprocal of 1/5 is -5.

The line we are looking for is y=-5x+b where we need to find the y-intercept b.

y=-5x+b goes through (-10,-8)

So we can use (x,y)=(-10,-8) to find b in y=-5x+b.

y=-5x+b with (x,y)=(-10,-8)

-8=-5(-10)+b

-8=50+b

Subtract 50 on both sides:

-8-50=b

-58=b

So the equation is y=-5x-58

4 0
3 years ago
Which expressions are equivalent to -2y-8+4y
katrin2010 [14]

Answer:

2y-8

-Step-by-step explanation:

2y +4y = 2y

so

2y - 8

8 0
2 years ago
Quadrilateral ABCD is reflected across the x -axis. What are the coordinates of quadrilateral A'B'C'D'? A. A' (5, –5), B' (1, –5
Yuki888 [10]

Answer:

=76559

Step-by-step explanation:

foggy

5 0
3 years ago
On a boat, a cabin's window is in the shape of an isosceles trapezoid, as shown below. What is the area of the window?
Dafna11 [192]

Answer:

196 in ^2

Step-by-step explanation:

Formula for area of trapezium is h ( a + b )/ 2 so.....

14(10 + 18)/2=196

3 0
3 years ago
Write and Solve Equations-Word Problems help
Ber [7]

Answer:

blue = 110

red = 83

Step-by-step explanation:

110 + 83 = 193

and the blue jar has 27 more coins than the red jar , so this is correct!

5 0
3 years ago
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