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3 years ago

Write an equation of the line that passes through (7.10) and is perpendicular to the line y =

Mathematics

1 answer:

Westkost [7]3 years ago

4 0

Answer:

10 = -2(7) +24

Step-by-step explanation:

y = -2 (7) +24

first, we find the negative reciprocal of the slope of the first equation.

1/2 = -2/1 = -2

So the slope for the new equation will be -2

y = -2x+b

Now we know it will pass through the point (7,10)

So the x coordinate will become x, and the y coordinate will become y

10= -2(7) +b

-2 x 7 = -14 + b = 10

-14 -10 = -24

b = 24

because

-14 + 24 = 10

So our final equation(s) are

y = -2(7) +24

10 = -2 (7) + 24

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3 years ago

Solve x 3x+6=42 please help me get this done

Nikitich [7]

_______________________________

Solution,

3x+6=42

or,3x=42-6

or, 3x=36

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3 years ago

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in the central city grand prix out of 30 cars that started the race,12 of them finished. what percent of the cars finished the r

olga_2 [115]

To get the answer we can use proportion.
30 ------------- 100%
12 --------------x
crossmultiply now
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3 years ago

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Find the area of the shaded region

Dimas [21]

The area of the shaded region is 15.453 square units.

Step-by-step explanation:

Step 1:

The given shape consists of a rectangle and two circles.

The length of the rectangle is given as 12 cm. Both the diameters of the circles equal 12 cm. So each circle has a diameter of 6 cm and thus a radius of 3 cm.

The diameter of the circle is equal to the width of the rectangle.

So the rectangle has a length of 12 cm and a width of 6 cm. The circles have radii of 3 cm each.

Step 2:

The area of the rectangle $= (l)(w) = (12)(6) = 72$ square cm.