2 years ago

4.

Mathematics

1 answer:

svet-max [94.6K]2 years ago

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Give the equation of the circle that is tangent to the y-axis and Center is (-3,2).

joja [24]

The formula for the equation of a circle is (x – h)2+ (y – k)2 = r2, where (h, k) represents the coordinates of the center of the circle, and r represents the radius of the circle. If a circle is tangent to the x-axis at (3,0), this means it touches the x-axis at that point. hope this helps

- Ava<3

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2 years ago

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<img src="https://tex.z-dn.net/?f=8%20%2B%20y%20%3D%203y" id="TexFormula1" title="8 + y = 3y" alt="8 + y = 3y" align="absmiddle"

aksik [14]

Answer:

8 + y = 3y

8 = 3y - y

8 = 2y

8/2 = y

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If a flight departs fromPittsburgh at 7:55 a.m. andarrives in San Diego at9:20 a.m., how long isthe flight? Use the timezone map

Rudik [331]

If a flight departs from Pittsburgh at 7:55 a.m. and arrives in San Diego at 9:20 a.m.,

How long is the flight?

SOLUTION

9. 20 am - 7. 55 am = 1 hour 25 mins

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2 months ago

Gina wrote the number 43,628. Then she used the same digits to write a new number. In the new number, she moved the digit 6 one

vivado [14]

The 1,000s place because she was in the 100s and you moved 6 to the left which makes the number higher.

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If the given values in a right triangle are cos A =

Vlad1618 [11]

See the picture attached to better understand the problem

we know that
in the right triangle ABC
cos A=AC/AB
cos A=1/3
so
1/3=AC/AB----->AB=3*AC-----> square----> AB²=9*AC²----> equation 1

applying the Pythagoras Theorem
BC²+AC²=AB²-----> 2²+AC²=AB²---> 4+AC²=AB²----> equation 2

substitute equation 1 in equation 2
4+AC²=9*AC²----> 8*AC²=4----> AC²=1/2----> AC=√2/2
so
AB²=9*AC²----> AB²=9*(√2/2)²----> AB=(3√2)/2

the answer is
the hypotenuse is (3√2)/2

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2 years ago