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Sedaia [141]
3 years ago
13

Write the standard equation of the circle with the given center is (0,0) and radius is 2.5

Mathematics
1 answer:
BlackZzzverrR [31]3 years ago
7 0

Answer:

x² + y² = 6.25

Step-by-step explanation:

The standard equation of a circle is ( x – h)² + ( y - k)² = r² where the center is (h, k) and r is the radius.

From your given information that the center is (0, 0) then both h and k are 0. Then r is 2.5, so

( x – 0)² + ( y - 0)² = (2.5)²

x² + y² = (2.5)²

x² + y² = 6.25

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Kim was walking down a rocky path.For 4 minutes, the elevation dropped steadily.All together it dropped 8 feet. What was the cha
fenix001 [56]

Answer:

2  \frac {{\textrm{feet}}}{{\textrm{minute}}}

Step-by-step explanation:

Kim was walking down a rocky path. For 4 minutes,  the elevation dropped steadily. All together it dropped 8 feet.

So, the change in elevation per minute for the 4 minutes is given by,

\frac {8}{4} \frac {{\textrm{feet}}}{{\textrm{minute}}}

= 2  \frac {{\textrm{feet}}}{{\textrm{minute}}}

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8 0
3 years ago
Divided 80 by my number, and then added 13. The result was 93. What was my number?
igor_vitrenko [27]

The number is 6400.

We have given that,

divided 80 by my number, and then added 13.

<h3>What is the expression?</h3>

An expression or mathematical expression is a finite combination of symbols that is well-formed according to rules that depend on the context.

Suppose the number is x

\frac{x}{80}+13=93

Subtract  13  from both sides

\frac{x}{80}+13-13=93-13

\frac{x}{80}=80

Multiply both sides by 80

\\\frac{80x}{80}=80\cdot \:80

x=6400

Therefore the number is 6400.

To learn more about the number visit:

brainly.com/question/251701

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4 0
2 years ago
What is 1 plus 1 ??z.z.z.z.
Setler [38]

Answer:okkkkk

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
Please help I really need help please
fomenos

Answer:

A

Step-by-step explanation:

The side lengths must satisfy the Pythagorean Theorem to be a right triangle. The formula is a^2 + b^2 = c^2 where a is the smallest side, b is the medium side, and c is the largest side. Test each set of numbers.

a = 6, b = 8, c= 10\\6^2 + 8^2 = 10^2\\36 + 64 = 100\\100 = 100

This satisfies the theorem. Since this is a multiple choice question, only one solution is possible. A is the solution.

6 0
4 years ago
A group pre-orders 8 tickets for a sightseeing tour, even though they don't have the money to pay for them yet. Each ticket cost
katen-ka-za [31]
Answer: -$266

Explanation: -32x8 because of 8 tickets, add 10 to the total debt because of the fee.
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3 years ago
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