6x+21+15-2x
4x+36
hope this helps...
The answers are : A and C
Answer:
Approximately 
revolutions (rounded to the nearest whole number.)
Step-by-step explanation:
Convert the diameter of this wheel to meters: 
.
Circumference of this wheel:
.
Distance travelled in one hour:
.
Number of revolutions required for covering that distance:
.
Answer:
a(7)=3645
Step-by-step explanation:
you have :
f(1) =a= 5
and from recursive rule: f(n) = r · f(n − 1) and f(n) = 3 · f(n − 1)
So r=3
then
a(n)=a*r^(n-1)
a(7)=5*3^(7-1)
a(7)=5*3^6=3645
<em>hope this helps</em>
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The answer is 460
1. 23 ones is the same as 23
2. 2 tens is the same as 20
3. 23 ones x 2 tens is the same as 23
x20
________
Hope you get it and hope i helped!
Buh-Bye
