C(1;2)
a = 1
b = 2
r = 4
(x-a)² + (y-b)² = r²
(x-1)² + (y-2)² = 4²
(x-1)² + (y-2)² = 16
Answer:
1. 228 parents
Step-by-step explanation:
I will do number 1 for you. I'll let you or someone else do the others.
Let 10x = no. of girls
5x = no. of boys
4x = no. of parents
Now, 10x + 5x + 4x = 1083
19x = 1083
x = 57
(10)(57) = 570 girls
(5)(57) = 285 boys
(4)(57) = <u>228 parents</u>
1083 total
Consider that long row as 1 big rectangle with base 6+11+6+11=34 and height of 8
area=34*8=272 ft^2
the 2 rectangles on side
the sbase is 11
the height is 6 since it has to match with the other 2 side things
2*6*11=132
add to find total
132+272=404 ft^2
Answer:
<u>The equation is:</u>
<u>We have two points:</u>
A)
<u>Find the slope using these two points:</u>
- m = (99 - 68)/(620 - 310) = 31/310 = 0.1
<u>Use one of the points to find the y-intercept b:</u>
- 68 = 0.1*310 + b
- 68 = 31 + b
- b = 68 - 31
- b = 37
<u>The equation is:</u>
B)
<u>Find the value of y when x = 980:</u>
- y = 0.1*980 + 37
- y = 98 + 37
- y = 135
The total cost is $135
