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GenaCL600 [577]
4 years ago
11

A car passes a landmark on a highway traveling at a constant rate of 55 kilometers per hour. One hour later, a second car passes

the same landmark traveling in the same direction at 75 kilometers per hour. How much time after the second car passes the landmark will it overtake the first car?
Mathematics
1 answer:
Alenkasestr [34]4 years ago
3 0
My answer would be 95.
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irina [24]
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2 years ago
Add the two expressions.<br><br> 2x + 6 and 6x−1
Eduardwww [97]
2x +6x = 8x
6-1 = 5
8x+5 is the answer
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3 years ago
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levacccp [35]

Answer:

The measure of its complementary angle is 3.

Step-by-step explanation:

6 0
2 years ago
whats the equation for the perpendicular bisector of the line segment whose endpoints are (-5,3) and (3,7)?
riadik2000 [5.3K]

Answer:

The equation of perpendicular bisector of the line segment passing through  (-5,3) and (3,7) is: y = -2x+3

Step-by-step explanation:

Given points are:

(-5,3) and (3,7)

The perpendicular bisector of line segment formed by given points will pass through the mid-point of the line segment.

First of all we have to find the slope and mid-point of given line

Here

(x1,y1) = (-5,3)

(x2,y2) = (3,7)

The slope will be:

m = \frac{y_2-y_1}{x_2-x_1}\\m = \frac{7-3}{3+5}\\m = \frac{4}{8}\\m = \frac{1}{2}

The mid-point will be:

(x,y) = (\frac{x_1+x_2}{2} , \frac{y_1+y_2}{2})\\ = (\frac{-5+3}{2},\frac{3+7}{2})\\= (\frac{-2}{2},\frac{10}{2})\\=(-1,5)

Let m1 be the slope of the perpendicular bisector

Then using, "Product of slopes of perpendicular lines is -1"

m.m_1 = -1\\\frac{1}{2}.m_1 = -1\\m_1 = -1*2\\m_1 = -2

We have to find the equation of a line with slope -2 and passing through (-1,5)

The slope-intercept form is given by:

y = mx+b\\y = -2x+b

Putting the point (-1,5) in the equation

5 = -2(-1)+b\\5 = 2+b\\b = 5-2\\b = 3

The final equation is:

y = -2x+3

Hence,

The equation of perpendicular bisector of the line segment passing through  (-5,3) and (3,7) is: y = -2x+3

4 0
3 years ago
HEY CAN ANYONE PLS ANSWER DIS!!!!!!
ss7ja [257]
The answer is D!!!!!!
3 0
3 years ago
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