Need help ASAP plz!!!

1.3

46. Find an equation of the line that satisfies the given conditions.

Through (½,-⅔); perpendicular to the line 4x-8y=1

1.4

20. Solve the equation graphically in the given interval. State each answer rounded to two decimals.

2x+square root of x+1=8; [1,4]

1.8

22. Solve the linear inequality. Express the solution using interval notation and graph the solution set (tell me what to type in calculator to get graph no inequality signs).

0<5-2x

42. Solve the linear inequality. Express the solution using interval notation and graph the solution set (tell me what to type in calculator to get graph no inequality signs).

x(2-3x)< or equal to 0

4.5

20. Find the exact solution of the exponential equation in terms of logarithms

Use a calculator to find an approximation to the solution rounded to six decimal places.

2(1,00625)^12t=8

96.Cooling an Engine

Suppose you're driving your car on a cold winter day (20degrees F outside) and the engine overheats (at about 220 degreesF). When you park, the engine begins to cool down. The temperatureT of the engine t minutes after you parksatisfies the equation.

ln() = -0.11t

a.) Solve the equation for T

b.) Use part a to find the temperature of the engine after 20minutes (t = 20)

4.6

6.The population of a certain species of fish has a relative growth rate of 1.2% per year it is estimated that the population in 2000 was 12 million

(A) find an exponential model for the population t years after 2000

(B) estimate the fish population in the year 2005

(C) sketch a graph of the fish population (just tell me what to put in the calculator to give me graph)

6.1

42. Determine whether the system of linear equations is inconsistent or dependent. If it is dependent, find the complete solution.

x-2y+5z=3

-2x+6y-11z=1

3x-16y-20z= -26

46.Determine whether the system of linear equations is inconsistent or dependent. If it is dependent, find the complete solution.

3r+2s-3t=10

r-s-t= -5

r+4s-t=20

48.Determine whether the system of linear equations is inconsistent or dependent. If it is dependent, find the complete solution.

y-5x=7

3x+2y=12

3x+10z=80