Answer:
-1
Step-by-step explanation:
You have to use simultaneous linear equation as there are 2 equations given
use the subtitution method as what I've shown above
Hope you can understand well
Stay safe!
First you add 87 +89 which equals 176.
second you multiply all the numbers you want to divide, which, to save time, equals 69,120
176 / 69,120 = 0.0025462962963 (0.003 if needing to round)
20
90 takeaway 70 equals 20
I am assuming you meant to write f(x) = 3^x -2
f(3) = 3^3 - 2 <=>
f(3) = 27 - 2 <=>
f(3) = 25
Range= max number-min number so the highest number is 9 and the lowest number is 0. 9-0=9 so your range or spread of data would be 9
