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Sergeeva-Olga [200]
2 years ago
5

HELP PLEASE Find the value of y. Round to the nearest tenth. у 42° 85° 31

Mathematics
1 answer:
MaRussiya [10]2 years ago
6 0
31
Explanation
Nothing
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write an equation for a circle with a diameter that has endpoints at (-4, -7) and (-2, -5). round to the nearest tenth if necess
andrezito [222]

Answer:

The answer to your question is          (x + 3)² + (y + 6)² = 2

Step-by-step explanation:

Endpoints (-4, -7) and (-2, -5)

Process

1.- Find the length of the radius

   d = \sqrt{(x2 - x1)^{2} + (y2 - y1)^{2} }

   d = \sqrt{(-2 + 4)^{2}+ (-5 + 7)^{2}  }

   d = \sqrt{2^{2} + 2^{2} }

   d = \sqrt{4 + 4}

   d = \sqrt{8}

   Radius = \frac{\sqrt{8} }{2} = \sqrt{2}

2.- Find the center

Xm = \frac{-4 - 2}{2} = \frac{-6}{2} = -3

Ym = \frac{-7 - 5}{2} = \frac{-12}{2} = -6

Center = (-3, -6)

3.- Write the equation

                                   (x - h)² + (y - k)² = r²

                                   (x + 3)² + (y + 6)² = (\sqrt{2})²

                                   (x + 3)² + (y + 6)² = 2

3 0
3 years ago
A science museum has a spherical model of the earth with a diameter of 6.5 m. What is the volume of the model? Use 3.14 for and
natka813 [3]

radius = diameter/2

radius = 6.5/2  =   \frac{13}{4}m

<span>volume  </span>=  \frac{4}{3} x \pi x (radius)³

              =  \frac{4}{3} x \pi x ( \frac{13}{4})^3

              =  \frac{4}{3} x \pi x \frac{2197}{64}

              =  \frac{2197}{64}

              = 144 cubic meters

6 0
3 years ago
Find the midpoint of segment LK with endpoints L(-2, 4) and K(5,3).
fenix001 [56]
Answer: (1.5, 3.5)

Explanation:
Find the slope by using the coordinates for points L and K.

3 - 4 = -1
5 - (-2) = 7
Slope = -1/7

Then you plot your points on the graph.
But you want to half your slope to find the midpoint. So your slope would now be -0.5/3.5.

And when you follow that slope, you will plot down the coordinate (1.5, 3.5), which is the midpoint.

Hope this helped! :3
(Also don’t mind the 19 at the top left)

3 0
3 years ago
The measure of an exterior angle of a regular polygon is 15 degrees. What is the sum of the measures of the interior angles of t
anyanavicka [17]
The measurement of all interior angles of any polygon is 360 degrees
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3 years ago
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Dane is 10 times Brian's age. The difference in their age is 27, how old is Brian
WARRIOR [948]
Brian is 3 years old.
Hope this helps!
3 0
3 years ago
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