#pre-cal

[atemumustang]

Any math people want to help me with a few problems that I can’t seem to get right? It’s due tonight at midnight and my grade is riding on it. I really don’t wanna take this class a fourth time please send me help.

If you wanna help, the problems are below:

1. A function is given.f(t) = 7/t  ;t = a, t = a + h

(a) Determine the net change between the given values of the variable

2. f(t) = 5 square root t ;t = a, t = a + h

(a) Determine the net change between the given values of the variable

3. Observers at P and Q are located on the side of a hill that is inclined 32° to the horizontal, as shown. The observer at P determines the angle of elevation to a hot-air balloon to be 66°. At the same instant the observer at Q measures the angle of elevation to the balloon to be 72°. If P is 60 m down the hill from Q, find the distance from Q to the balloon. (Round your answer to the nearest meter.) 

4. Solve the given equation. (Enter your answers as a comma-separated list. Let k be any integer. Round terms to three decimal places where appropriate. If there is no solution, enter NO SOLUTION.)

(tan2(θ) − 16)(2 cos(θ) + 1) = 0

5. Solve the given equation. (Enter your answers as a comma-separated list. Let k be any integer. Round terms to three decimal places where appropriate. If there is no solution, enter NO SOLUTION.)

7 sin2(θ) − 22 sin(θ) + 3 = 0

6. Solve the given equation. (Enter your answers as a comma-separated list. Let k be any integer. Round terms to three decimal places where appropriate. If there is no solution, enter NO SOLUTION.)

5 tan(θ) sin(θ) − 3 tan(θ) = 0

7. Find the Domain and Range of the given function. 

r(x) = x2 + 8x − 9/x2 + 3x − 4

8. A small lake is stocked with a certain species of fish. The fish population is modeled by the function P = 14/1 + 4e−0.9t where P is the number of fish in thousands and t is measured in years since the lake was stocked.

(a) Find the fish population after 4 years. (Round your answer to the nearest whole fish.)

(b) After how many years will the fish population reach 7000 fish? (Round your answer to two decimal places.

[11stem8-precal-mt1-blog]

4 CONIC SECTIONS

Circle

In the picture above I have chosen a pan lid. It represents as circle in the 4 conic sections. This lid is used to ensure that the heat remains inside the frying pan and at the same time function as a splash guard in cooking. it is a circle because it does not have any end point.

Ellipse

I have chosen this egg surprise as an example of ellipse. Same as a circle it does not have endpoints. Its oval shape is what makes it an example of ellipse.

Parabola

This lotion container that I have shown on the picture is an example of a parabola in the 4 conic sections. It is a parabola because it is a plane curve which is mirror-symmetrical and is approximately U-shaped. the shape design of the lotion container makes it an example of a parabola.

Hyperbola

This hourglass is a device used to measure the passage of time. It comprises two glass bulbs connected vertically by a narrow neck that allows a regulated trickle of material (historically sand) from the upper bulb to the lower one. It is a hyperbola because of the shape of the glass inside.The hourglass shape is defined by a woman's body measurements. It has a symmetrical open curve formed by the intersection of a circular cone with a plane at a smaller angle with its axis than the side of the cone.

Lander I. Cabuay   11-STEM 8  MT 1 PRE-CALCULUS

[wolfbeware]

Is there anyone to help me find the answer to this question?

How do you find a polynomial from a complex? (Ex. Zeros are 5 and 5+i)

Ive been working on this one damn problem for a day, used 5 papers to figure it out, and I seriously am unable to find out what in the heck is happening with it.

[syfka-of-the-moon-blog]

Welcome back to school

Nothing says welcome back to school (went to look at colleges/ a motorcycle trip) like having a full out panic attack because of being so far behind on pre-cal

[mazes-and-the-madness]

me: *studies for math exam by playing 2048*

[dat-setter-booty-tho]

That feel when you turn in like 3 math assignments in your online course at 5:56 in the morning because life just does things like that.

[parametricdisco]

The limit does not exist.

The limit does not exist!

[valen-but-not-tine]

I am scared for this test