The change of base formula looks like this:
log x
(log to the base b of ) x = ----------- (you could also use ln instead of log)
log b
log 40 1.602
Then (log to the base 7 of) 40 = ------------ = ------------- = 1.896 (answer)
log 7 0.8451
check (on calculator): 7^1.896 = 40.023 (close enough to 40 to verify
that this method "worked")
I think it's to late, but...
Just turn the second equation into y equals mx plus b form
Then graph both equations
Pretty easy so far
After graphing them, you just have to find where they intersect, and that is your answer.
If they're parrallel, then there is no solution.
If it's the same line, then it's many solutions.
HOPE THIS HELPED
Answer:
1.38888888889 Rounded answer: 1.40 or 1.4
Step-by-step explanation:
Answer:
Interest earned is $25.2
Step-by-step explanation:
The formula to find simple interest is:
I = P₀rt
Where
I = interest rate
P₀ = Principal amount
r = interest rate
t= time
5 months = 5/12 years = 0.42 years
I = 1000* 6/100*0.42
I = 1000*0.06*0.42
I = 60*0.42
I = 25.2
Interest earned is $25.2
Answer:
A) 
B) T = -5 °C
Step-by-step explanation:
A) Let T be the change in temperature of the week. T is determined as the total temperature change (-20°C) divided by the number of weeks that have passed (4 weeks). The expression is:
B) In order to simplify the expression, simply perform the division.
This means that the temperature has dropped by 5 degrees each week.
