Given exponential function
f(x)= 
Where x is the number of years
f(x) is the number of tuna in thousands
To find out when number of tuna is 50 thousand , we plug in 50 for f(x) and solve for x
Divide by 230 on both sides
Take ln on both sides
Divide by ln(0.881) on both sides
x = 
x= 12.04
Year = 1974 + 12.04 = 1986
so in 1986 there will be 50 thousand tuna.
4 |x = 5| = 20
First, divide both sides by 4. / Your problem should look like:
Second, simplify
to 5. / Your problem should look like:
Third, break the problem into 2 equations. / x + 5 = 5 and -(x + 5) = 5
Fourth, solve x + 5 = 5. /
Cancel 5 on both sides. /
Fifth, solve -(x + 5) = 5 /
Simplify brackets /
Add 5 to both sides /
Add 5 + 5 /
Multiply both sides by -1 /
x = -10
Sixth, collect the solutions to the problems. / Your problem should look like:
Answer:
x = -10, 0
If you wanna divide 9's on your fingers, its really easy...
Example: If you wanna do 3x9 you hold up your 10 fingers and put down your fourth finger... it would look like your saying 36, and that is your answer.
Another example: If you wanna do 6x9 you hold up your 10 fingers and put down your 7th finger... It would look like you are saying 63 and that is your answer.
I hope this helps, tell me if you have any questions.<span />
Answer:
a= 131 21/30
b= 132 21/30
c= 132
Step-by-step explanation:
Answer: 3.875 or 3ft 7/8in
=15.5 - 3.875(3)
=15.5 - 11.625
= 3.875 or 3ft 7/8in
