Complete question is;
In an exponential function, f(x) = a(b)^x, it is known that f(5) = 15 and f(7) = 170. which of the following is closest to the value of b?
Answer:
b = 3.37
Step-by-step explanation:
The function given is f(x) = a(b)^x,
Now, f(5) = 15, Thus;
15 = a(b)^(5)
Also, f(7) = 170
Thus; 170 = a(b)^(7)
From first equation, a = 15/(b)^(5))
Putting this in second equation;
170 = (15/(b)^(5))) × (b)^(7)
170 = 15b²
b² = 170/15
b² = 11.333
b = √11.333
b = 3.37
6(3(7)-1)-10(7)
6(20)-70
120-70
50
Oh you have to make a list of things with a price make sure it adds up to that number
Each week he earns $142.5 from his partime job plus $25 from chores and then saves 85% of that total ($167.5). 85x167.5 = 14237.5 divided by 100 = 142.375 which is 85% of what he earns each week. Then multiply that by 8 weeks to find his total on August 25th. The answer should be $1,139
Answer:
4
Step-by-step explanation:
-4/-1 = 4
