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3 years ago

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Which of the following is the last step in problem solving? A. Understand the problem. B. Check your answers and present the sol

ution. C. Come to an answer. OO D. Gather your resources

1 answer:

stealth61 [152]3 years ago

7 0

Step-by-step explanation:

Come to an answer,I mean final answer after checking all your answers with the solutions.

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How would you solve this? help.

Eddi Din [679]

Answer:

<em>Center: (3,3)</em>

<em>Radius: </em> $2\sqrt{5}$ <em />

Step-by-step explanation:

<u>Midpoint and Distance Between two Points</u>

Given two points A(x1,y1) and B(x2,y2), the midpoint M(xm,ym) between A and B has the following coordinates:

$\displaystyle x_m=\frac{x_1+x_2}{2}$

$\displaystyle y_m=\frac{y_1+y_2}{2}$

The distance between both points is given by:

$d=\sqrt{(x_2-x_1)^2+(y_2-y_1)^2}$

Point (5,7) is the center of circle A, and point (1,-1) is the center of the circle B. Given both points belong to circle C, the center of C must be the midpoint from A to B:

$\displaystyle x_m=\frac{5+1}{2}=\frac{6}{2}=3$

$\displaystyle y_m=\frac{7-1}{2}=\frac{6}{2}=3$

Center of circle C: (3,3)

The radius of C is half the distance between A and B:

$d=\sqrt{(1-5)^2+(-1-7)^2}$

$d=\sqrt{16+64}=\sqrt{80}=\sqrt{16*5}=4\sqrt{5}$

The radius of C is d/2:

$r =4\sqrt{5}/2 = 2\sqrt{5}$

Center: (3,3)

Radius: $2\sqrt{5}$

8 0

3 years ago

9328553.99 multiply by 10 the decimal will move one place to the left or two places to the left or one place to the right or two

VARVARA [1.3K]

93285539.900000000000

7 0

3 years ago

A total of 246 tickets were sold for the school play. They were either adult tickets or student tickets. The number of student t

kirza4 [7]

So here are your variables:

# of adult tickets= x
# of student tickets 2x

so x+2x= 246 and solve
3x=246
x=82 adult tickets were sold

8 0

4 years ago

Find the solution of the equation. 6(3x - 7.2) = 25.2 *

Kaylis [27]

The answer is D. x = 3.8

6 0

3 years ago

Read 2 more answers

Jacinta is working on a jigsaw puzzle that has 403 pieces. She has completed 1/4 of the puzzle. About how many pieces has she pl

slava [35]

$403 / 4 = 100.75$
to get any fraction of a number, as long as the numerator is 1 in the fraction, just divide by the denominator. In this case it's 4. Since you can't place .75 of a puzzle piece, she's placed 100 pieces in the puzzle.

4 0

3 years ago