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Zinaida [17]
3 years ago
11

What is the equation of a circle centered at the origin with radius 15?

Mathematics
1 answer:
sashaice [31]3 years ago
6 0

Answer:

D

Step-by-step explanation:

The equation of a circle centred at the origin is

x² + y² = r² ( where r is the radius )

Here r = 15, thus

x² + y² = 15² , that is

x² + y² = 225 → D

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HELP PLEASE I honestly need help please help
eduard

9514 1404 393

Answer:

  5.  x = 160; y = 20

  6.  h = 125°; g = i = 55°

Step-by-step explanation:

Vertical angles are found on opposite sides of a point where lines cross. Each angle is formed from rays opposite those of the other angle. Vertical angles are congruent.

5. x° and 160° are vertical angles: x° = 160°

  y° and 20° are vertical angles: y° = 20°

__

6. h° and 125° are vertical angles: h° = 125°

The angles g° and 125° form a "linear pair" so total 180°.

  g° = 180° -125° = 55°

  g° and i° are vertical angles: g° = i° = 55°

4 0
3 years ago
A gift box has a surface area of 6.25 square feet. What is the surface area of the box in square inches?
guapka [62]

The surface area of the box in square inches will be 39.0625 inches².

<h3>How to calculate the area?</h3>

From the information, the gift box has a surface area of 6.25 square feet.

Therefore, the surface area of the box in square inches will be:

= Side × Side

= 6.25 × 6.25

= 39.0625 inches²

Therefore, the surface area of the box will be 39.0625 inches².

Learn more about area on:

brainly.com/question/25292087

#SPJ1

4 0
1 year ago
7x to the power of 2 is a what is it<br>a) monomial<br>b) binomial<br>c) Trinomial​
Sedaia [141]
You can use the prefixes to figure this out:
Mono: one
Bi: two
Tri: three

So, because there is only one term, it is a monomial.
4 0
3 years ago
Your friend evaluates ( 10-k ) divided by 5 . K stands for 5 and the friend gets 9 as the answer . Explain the error
Oliga [24]

Answer:

(10 - k) ÷ 5 = 9

(10 - 5) ÷ 5 = 9

5 ÷ 5 = 9

1 = 9

1 does not equal 9


Hope this helps! Please mark brainliest! Have a great day!



Thank you for using Brainly!

8 0
3 years ago
Point (-5,2) is reflected over the y axis. Where is the new point located?
umka21 [38]
The new point is (5,2)
8 0
3 years ago
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