Answer:
Step-by-step explanation:
f(3)= 8-5(3)
=8-15
=-7
Answer: 10x-30=90 I think 10x=90-30, 10x=60, x=60/10, x=6
Step-by-step explanation:
Answer:
-1.53 , 1.53
Step-by-step explanation:
It is basically asking you to find the percentiles. so for the bottom 6.3% you would type into your calculator 2nd, VARS, invNorm, area: .063, mean: 0, and Standard Deviation: 1 which gives you -1.53.
for the upper 6.3% you have to take 1-.063=.937 to get the upper percentile. now type into your calculator 2nd, VARS, invNorm, area: .937, mean: 0, and Standard Deviation: 1 which gives you 1.53.
I hope I helped :D
you have to × times the number buy like how much it was then ÷divided it but if there is a reminder then add a zero add put it together ok hope you get it right and pass
2a+8a
Add 2 and 8.
2a+8a=10a