1. 484.8
2.156.6
hope this helped :)
Answer:oof
Step-by-step explanation:
Answer:
Abelito had the greater average speed
Step-by-step explanation:
Given
Bobby:
Abelito
Required:
Who had a greater average speed
Average speed (S) is calculated as:
We will make use of mph (miles per hour) as the unit of speed.
For Bobby:
Convert minute to hour
For Abelito
Convert minute to hour
By comparison: 12.5mph > 8mph
Hence: Abelito had the greater average speed
D
C
Sorry if both aren't correct, it's been a while since i did this...
Answer:
1
Step-by-step explanation:
The function with the given zeros will factor as ...
f(x) = a(x +15)(x^2 +9) . . . . with leading coefficient 'a'
You have ...
f(2) = 221 = a(2+15)(2^2+9) = a(17)(13) = 221a
Then a = 221/221 = 1
The leading coefficient is 1.
_____
<em>Additional comment</em>
As you know, a function with zero x=p has a factor of (x -p). The given zeros mean the function has factors (x -(-15)), (x -3i). and (x -(-3i)). The product of the last two factors is the difference of squares: (x^2 -(3i)^2) = (x^2 -(-9)) = (x^2 +9). This is how we arrived at the factorization shown above.
