:') alright. Break down the composite shape into 2 separate shapes:
The radius of the semi-circle is 14/2=7cm
So the area of the semi-circle is (pi×7^2)/2=77cm^2 to 1 d.p.
The area of the rectangle is 14×20=280cm^2
280+77=357cm^2 is the area of the composite shape
Answer:
The answer is -1
Step-by-step explanation:
Answer:
yes 6 and 3 is correct so is answer
Answer:
StartRoot StartFraction 1 Over 41 EndFraction EndRoot
Negative StartRoot 41 EndRoot
Negative StartRoot StartFraction 1 Over 41 EndFraction EndRoot
StartRoot 41 EndRoot
Part A
Chorus:
Expontential growth = b*a^x
b = 15
a = 1.12 (a= r+1), r = 12%
Which gives a function of f(x) = 15*1.12^x
Band
Linear growth = ax+b
a = 2
b = 30
Which gives a function of g(x)=2x+30
Part B:
f(9) = 15*1.12^9 = 41.59
g(9) = 2*9+30 = 48
Part C:
This is probably problem solving, where you're allowed to use calculators and other softwares.
Therefore you can use different softwares, and make f(x) = g(x).
I did this, and got it to 10.95427141