Answer:
about $1148.06
Step-by-step explanation:
Your goal is to find the area of the island of grass and multiply that area by the cost per square yard.
Area = radius * radius * pi
You are told that the <em>diameter = 15 yards</em>. We also know that the radius that we need is half of the diameter. <em><u>Radius = 7.5 yards</u></em>.
This means that the <em>Area = 7.5 * 7.5 * 3.14 = 176.625 square yards</em>
Then we multiply by the cost per square yard:
176.625 * 6.50 = 1148.06 is your answer
Answer:
9
Step-by-step explanation:
2x + 3y - 2 =9
(2) + (9) -2 =9
4.2+6.7=10.9
10.9+3.2=14.1
14.1+1.5=15.6
Answer:
$0.1 /lb.
Step-by-step explanation:
First, divide 1.99 by 19. You get 0.1047368421. To round it to the nearest hundred, look to the number 3 points away from the decimal, which is number 4. Since it is not 5 or greater, we round it down, and it would round down to 0.1.
The general function for the cos function is:
<span>y=Acos<span>(B<span>(x+C)</span>)</span></span>
where A
is the amplitude, <span><span>2π</span>B</span>
is the period
and phase shift is C
.
For our function: f(x) = −4 cos(3x − π) + 1 =-4cos(3(x-π/3))+1
the amplitude is:-4
the phase shift is: -π/3
