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BabaBlast [244]
3 years ago
6

Need Some help, I will mark brainliest :))​

Mathematics
1 answer:
Firlakuza [10]3 years ago
3 0

Answer:

The first one

Step-by-step explanation:

the first one is biased because it is not random but rather people who are using the library. They will obviously be biased towards the library

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Please help me!! QUICKKKK
liq [111]

Answer:

Reflection over y axis

Step-by-step explanation:

When you reflect over y axis it makes the points go from (x,y) to (-x,y) so this is the right answer

Hope this helped!

5 0
2 years ago
What is the surface area of a rectangular prism with a base length of 7 yd, a base width of 5 yd, and a height of 6 yd?
konstantin123 [22]
D is the answer view the picture for full info on the solution. Also can also make a net

4 0
3 years ago
An event manager recorded the number of people in different age groups that attended a music concert.
ehidna [41]
The third data table accurately represents data in the histogram.
If you draw the histogram, it looks like in the .jpeg image enclosed with this answer.

7 0
3 years ago
Read 2 more answers
11. David's net worth is $45,765.78 and his assets have a value of
MArishka [77]

Answer:

the last one

Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
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
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