Answer:
A ≈ 158.37km²
Step-by-step explanation:
<u>Using the formulas</u>
A=πr2
d=2r
<u>Solving forA</u>
A = 1
/4πd 2
= 1
/4·π·
14.22 ≈ 158.36769km²
Therefore, the are of the circle in nearest hundredth is A ≈ 158.37km²
Answer:
43.75 dollars
Step-by-step explanation:
10 dollars by 17.5 hours equals 175 dollars.
1/4 of 175= 43.75 dollars
Answer:
f(9.5) = 558.02.
Step-by-step explanation:
Because it is an exponential function, it can be written: y = (a)(b)^x
Now substitute in the two known points:
72 = (a)(b)^7.5 and
2 = (a)(b)^4 : => since 2 = (a)(b)^2 divide the left side by 2 and the right by (a)(b)^2
72/2 =[(a)(b)^7.5]/[(a)(b)^4]: => the (a) cancels out and b becomes b^(7.5–4)
36 = b^3.5: => To isolate b take the 3.5 root of both sides
{3.5 root}(36) = {3.5 root}(b^3.5)
2.783927 = b
Now to solve for a
2 = (a)(b)^4 => 2 = (a)(2.783927)^4 => 2 = (a)(60.066375) divide both sides by 60.066375 0.0332965 = a
Equation: y = (0.0332965)(2.783927)^x
Now plug in 9.5 for x
(0.0332965)(2.783927)^9.5 = 558.0178525 = 558.02
The total amount after 5 years would be $2,650
Answer:
about 11.50
Step-by-step explanation:
6 / 5.70 = 1.05
1.05 x 11
hope this helps
