Answer:
B In standard form since the exponents are written highest to lowest
Step-by-step explanation:
Standard form of a polynomial is written with the exponents in descending order. Descending order is highest to lowest. This polynomial has an exponent of 8 then 7 then 1. So this is in standard form.
The answer is D. preparing a budget to review her expenses.
5.864 rounded to the nearest tenth is 5.9
Answer:
The number of hours Stephanie will have driven before Tina catches up to her is 2.5 hours
Step-by-step explanation:
Given:
56s=70t
s=t+1/2
Solution
56s=70t
s=t+1/2
Substitute s=t+1/2 into 56s=70t
56s=70t
56(t+1/2)=70t
56t+28=70t
28=70t - 56t
28=14t
Divide both sides by 14
28/14=14t/14
2=t
t=2
Recall,
s=t+1/2
s=2+1/2
=4+1/2
s=5/2
Or
s=2.5 hours