MATHEMATICS MIDDLE SCHOOL

The equation of a circle centered at the origin is x2 + y2 = 16. What is the radius of the circle?A.8
B.16
C.4
D.256

Answers

Answer 1
Answer:

Answer:

The radius of circle is 4

Step-by-step explanation:

Given as :

The equation of circle is given as :

x² + y² = 16

Now The standard equation of

( x - h )² + ( y - k )² = r²

where h , k are center of circle

         r is the radius of circle

From given circle equation x² + y² = 16    can be written as

     ( x - 0 )² + ( y - 0 )² = (4)²

So, The center of this circle is ( h , k ) = ( 0 , 0 )  And radius of circle = 4

Hence The radius of circle is 4    Answer

Answer 2
Answer:

Answer:

C 4

Step-by-step explanation:

well 4x2 + 4x2 = 16

and radius is 1/2 of diameter so 1/2 of 8 is 4

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A horseback rider travels 2 miles in 10 minutes. At this speed how long does it take to travel 3 miles?

Answers

   2miles         3 miles
________  = ________
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2x=30
divide both sides by 2
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54 x 67 using the distributive property

Answers

.                    54 x 67
                 (50+4)(60+7)
(50x60) + (50x70) + (4x60) + (4x7)
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                       3618

The answer is 3,618

a deli served 1288 sandwiches in 4 weeks. if it served the same number of sandwiches each day,how many sandwiches did it serve in 1 day?

Answers

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there are 54 students in the marching band. they for equal rows, so that there are no fewer than 5 rows and no more than 10 students in each row. how many rows can they firm and how many students will be in each row?

Answers

There are 6 rows with 9 in each. 6 is not fewer than 5 and 9 is not more than 10

Please write step by step of how you got the answer. Thankyou

Answers

Answer:

The solution in the attached figure

Step-by-step explanation:

step 1

Place the numbers  -4, 4, 0, and -3 in the left side

Adds the numbers

-4+4+0-3=-3 ----> is correct

step 2

Place the numbers  3, -1, and -2 in the right side

Adds the numbers

-3+3-1-2=-3 ----> is correct

step 3

Place the numbers  1 and 2 in the base side

Adds the numbers

-4+1+2-2=-3 ----> is correct

The solution in the attached figure

NEED HELP FAST PLEASE URGENT!!!!( the James family went out to eat and their total bill was $110. Since the service was great, they will leave a 20% tip. How much money should the family leave for tip? Answer is in money format and should include the dollar sign in front of the solution)

Answers

The family should leave $22

All we have to do is multiple 110 by 0.20 to get the answer.

If we multiple the two numbers, we get the number 22, so the James family should leave a $22 tip.

By the by, if we combine the two numbers, we get 132, meaning that the James family will spend $132 in total.
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