*1953 = x(x + 1) /2
2* 1953 = x (x + 1)
3906 = x^2 + x
x^2 + x - 3906 = 0
(X + 63) (x - 62) =0
X + 63 = 0. ^ x - 62 = 0
X = -63 ^ x = 62
:)
You can make an equation
6+x(1.5)=36
-6 -6
x(1.5)=30
/1.5 /1.5
----------------
x=20
You can buy 20 tickets or less so
x is less than or equal to 20
B
Answer:
Step-by-step explanation:
the one on the bottom because
the orientation of the points do not change
Answer: The shaded area is 99.55 units squared.
Step-by-step explanation:
r = 3.2
Now, we can see that the sides of the square are equal to two times the diameter of the circles (or four times the radius of the circles), so the length of the sides of the square is:
L = 2*(2*3.2) = 12.8
The area of the square is A1 = L^2 = 12.8*12.8 = 163.84 units squared.
the shaded semicircle has a diameter of 4 times r (so the radius is 2 times r), and the area is equal to half the area of a circle:
A2 = (1/2)*pi*(2r)^2 = (1/2)*3.14*(6.4)^2 = 64.31 units squared.
And now we must subtract the area of the four smaller circles inside the square, the area of each one is:
A3 = pi*r^2 = 3.14*(3.2)^2 = 32.15 units squared.
Then the shaded area is:
A = A1 + A2 - 4*A3 = 163.84 + 64.31 - 4* 32.15 = 99.55 units squared.
Answer:your answer to this prob,problem, is c) $108.75
Step-by-step explanation:
