960 because 0.8(80%) • 1200 = 960
Answer:
938
Step-by-step explanation:
Given that :
Amount spent by fair on thrill. Ride = $3000
Cost per token of thrill ride = $4
For the fair to make a profit of atleast $750
Then it must realize : (cost of thrill ride + $750) = ($3000 + $750) = $3750
Therefore ;
Cost per token * number of rise tokens ≥ $3750
Let number of ride tokens = x
4x ≥ 3750
4x/4 ≥ 3750/4
x ≥ 937.5
Hence, number of tokens that must be sold = 938
Answer:
Step-by-step explanation:
Here, we want to solve the given quadratic equation using the quadratic formula
We need to rewrite the equation in the standard form;
-4x^2 + 3x + 5 = 0
we have the value a as -4
value b as 3
C = 5
we then substitute these values into the quadratic formula as seen in the attachment
Our goal is to find the area
area=1/2 times base times height
we know the height is 7.9 but what is the base?
use the pythagorean theorem twice
alrighty
so
remember for legs length a and b and hytponuse c in a right triangle
a²+b²=c²
we need AD and DC
so
AD²+7.9²=9.4²
AD=√25.95
DC²+7.9²=23.2²
DC=√475.83
so
AD+DC=base=(√25.95)+(√475.83)
area=1/2bh
area=1/2((√25.95)+(√475.83))(7.9)
area≈106.28518654591426812803776879893
round to 2 decimal places
area≈106.29 square units
