johalraman123 johalraman123
  • 17-07-2020
  • Mathematics
contestada

A circle is represented by the equation x2+y2=445. a) State the radius. b) Find y if point A(-9,y) is on this circle.

Respuesta :

316628
316628 316628
  • 17-07-2020

Answer:

R= sqrt 445

Y = 19

Step-by-step explanation:

Radius is the square root of 445

Find y

So, First step is to substitute what you have

-9^2 + y^2 = 445

 81 + y^2 = 445

-81               -81

y^2 =364

Y is about 19

Let me know if I'm incorrect

Hope this helps :)

Answer Link

Otras preguntas

2There came a great rattling of chains and bolts, and the door was cautiously opened. The man was a stooping, narrow-shouldered, clay-faced creature, and his ag
What are the objectives of a social enterprise?
10. Trent has 4 cups of chocolate chips andplans to divide this amount into equal parts tomake 6 batches of chocolate chip cookies.What fraction a cup of chocol
I just need help solving this please. Will give brainliest.
An electron of mass 9.11*10-31kg has an initial speed of 3.00*105m/s. It travels in a straight line and its speed increases to 7.00*105m/s in a distance of 5.00
simplify (-7/8)(-3/4). what do i get?​
Marcus gravy lad and movement for African Americans to
Which of the following proportions can be used to find the value of n?​
why was the declaration of independence created
The area of a rectangular painting is 13.02 square feet. The width is 4.2 feet. What is the length?