Answer:
Step-by-step explanation:The surface area of a sphere (the shape of a baseball) is given by the formula, SA = 4 (pi) r^2. Given the circumference of the circle, you can solve for the radius.
The formula for circumference is C = 2 x pi x r.
So input 9 for C and solve. 9 = 2 x pi x r.
You will get that r is equal to about 1.43 in.
Now put that r value into the surface area equation: SA = 4 (pi) 1.43^2
You will get a surface area equal to about 25.7 in^2.
Now multiply that number by the number of baseballs you need to cover, 100.
I'll let you do that step by yourself since it's simple algebra and you're smart enough to figure it out ;)
Answer:
6. (2,1) 7. (2,2)
Step-by-step explanation:
Number 6, Since it is a dilation of .5 you divide the x and y coordinate by 2 to get (2,1). X - 4/2=2, Y - 2/2=1
Number 7, Since it's rotating 90 degrees counterclockwise you switch the x and y coordinates. So from (x,y) to (y,x) and also when going counterclockwise you have to make the y coordinate becomes negative, so the counterclockwise equation is (-y,x) plug in your numbers and you get (2,2) as your 90 degree counterclockwise rotated coordinates.
Answer:
Step-by-step explanation:
5x+2x+7=7x+7
Answer:
23.6 degrees
Step-by-step explanation:
Here, sin(<XZY) = 6/15 = 2/5
So, <XZY = arcsin(2/5) = 23.6
Given: F = {(0, 1), (2, 4), (4, 6), (6, 8)} and G = {(2, 5), (4, 7), (5, 8), (6, 9), (7, 5)} (F + G) (2) =
galben [10]
Answer:
9
Step-by-step explanation:
(F+G)(2)
=F(2)+G(2)
Stop!
F(2) means what is y when x=2 looking at function F.
F(2)=4 since F has the ordered pair (2,4) which says when x=2, y=4.
G(2) means what is y when x=2 looking at function G.
G(2)=5 since G has the ordered pair (2,5) which says when x=2, y=5.
G(2)=5.
Continue!
(F+G)(2)
=F(2)+G(2)
=4+5
=9
