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Precalculus

02/14/23

Pre-calculus math

Find the exact value of the expression. Sin(cos^-1(3/4)-tan^-1(1/3))

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Precalculus Math Calculus

02/14/23

2. Find the open intervals on which f(x) = 1/(x^2) is increasing or decreasing.

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Precalculus

02/14/23

A town's population has been growing linearly. In 2003, the population was 54000, and the population has been growing by 1700 people each year.Write an equation for the population � years after... more

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Precalculus

02/14/23

Two gears are calibrated so that the smaller gear dives the larger gear. For each rotation of the smaller gear, how many degrees will the larger gear rotate?

Two gears are calibrated so that the smaller gear drives the larger gear. For each roation of the smaller gear, how many degrees will the larger gear rotate?radius of the smaller gear= 2cmradius of... more

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Precalculus Calculus

02/14/23

q-7 How would i make an equation?

A balloon is rising at a rate of 4 meters per second from a point on the ground 53 meters from an observer. Find the rate of change of the angle of elevation from the observer to the balloon when... more

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Precalculus Calculus

02/14/23

How would i find the speed of her shadow?

A street light is at the top of a 12 ft tall pole. A woman 6 ft tall walks away from the pole with a speed of 4 ft/sec along a straight path. How fast is the tip of her shadow moving when she is 40... more

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Precalculus

02/14/23

q-5 How would I solve this?

Gravel is being dumped from a conveyor belt at a rate of 20 cubic feet per minute. It forms a pile in the shape of a right circular cone whose base diameter and height are always equal. How fast is... more

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Precalculus Calculus

02/14/23

How would i set up the equation?

A spherical snowball is melting in such a way that its radius is decreasing at a rate of 0.2 cm/min. At what rate is the volume of the snowball decreasing when the radius is 15 cm. (Note the answer... more

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Precalculus

02/14/23

Q-1 How would i solve this with an equation?

The length of a rectangle is increasing at a rate of5 meters per day and the width is increasing at a rateof 3 meters per day.When the length is 9 meters and the width is 21 meters,then how fast is... more

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Precalculus

02/14/23

How would i find the answer in ft/sec?

A street light is at the top of a 14 ft tall pole. A woman 6 ft tall walks away from the pole with a speed of 8 ft/sec along a straight path. How fast is the length of her shadow increasing when... more

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Precalculus Math Trigonometry

02/14/23

What is the principle value of

I really don't get this. Please provide explanation/step-by-step.

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Precalculus Math Trigonometry

02/14/23

What is the principle value of

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Precalculus Math Calculus Differential Equations

02/13/23

Assume that f(x,y,z) = x^2 +y^2 +z^2 +xz has a critical point at (0,0,0). Is f(0,0,0) a maximum, minimum, saddle point, or do we not have enough information to determine this?

Show all of your work and every step to receive full credit. If there is not enough information to determine if (0,0,0) is a max, min, or saddle, please justify your answer.

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Precalculus

02/13/23

determine the values of x such that y=x^2 and y=1/x have the same slope

only allowed to use the first principles definition for a derivative 😕

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Precalculus Math Calculus Differential Equations

02/12/23

Consider the function f(x,y) = x^2 − 2xy + (y^3)/3 −3y

(a) Compute all its critical points.(b) Find Hessian matrices and quadratic forms for each critical point.(c) For each quadratic form, compute the eigenvalues λ1, λ2 of the associated 2 × 2 matrix... more

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Precalculus

02/12/23

Make sure to round to 2 decimal places

A satellite dish is shaped like a paraboloid of revolution. This means that it can be formed by rotating a parabola around its axis of symmetry. The receiver is to be located at the focus. If the... more

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Precalculus Math Algebra 2 Calculus

02/12/23

Let B = [201|020|102] (3x3 matrix)

(a) What does the Spectral Theorem guarantee about the matrix B?(b) Find the eigenvalues and eigenvectors of B.(c) Assume that f(x,y,z) = x2 +y2 +z2 +xz has a critical point at (0,0,0). Is f(0,0,0)... more

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Precalculus

02/12/23

Round to 2 decimal places

A satellite dish is shaped like a paraboloid of revolution. This means that it can be formed by rotating a parabola around its axis of symmetry. The receiver is to be located at the focus. If the... more

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Precalculus

02/11/23

Answers all the questions

Question 1: Suppose that an ellipse is centered at (0,0) and has a vertex (5,0) and focus (1,0). Find b=______. (round to 2 decimal places)Question 2:Suppose that an ellipse is centered at (0,0)... more

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Precalculus

02/11/23

Find the answers

Suppose that a rancher is build pens along a river so no fencing is needed along the river but wants 3 sections as shown. Find the length y that will maximize the area if the rancher has 6,548 feet... more

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Precalculus Math Calculus

02/11/23

Solve: 2x^2+7x-=9(mod19)

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Precalculus Math Calculus

02/11/23

Solve the congruence 3x=5(mod4), x=? where k is any integer

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Precalculus

02/11/23

Cut wire two shapes, circumference of circle when A is a minimum

You have a wire that is 83 cm long. You wish to cut it into two pieces. One piece will be bent into the shape of a square. The other piece will be bent into the shape of a circle. Let A represent... more

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Precalculus Math

02/11/23

The points ( − 1.9 , 2.7 ) and ( 3.1 , 10.2 ) are on the graph of a linear relationship between two variables, x and y .

The points (−1.9,2.7) and (3.1,10.2) are on the graph of a linear relationship between two variables, x and y.1) What is the constant rate of change of y with respect to x?2)Write a formula that... more

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Precalculus

02/11/23

For the following exercises, use the given information about the polynomial graph to write the equation.

Degree 3. Zero at x = -2, x = 1, and x = 3. y intercept at (0,-4).

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Pre-calculus math

2. Find the open intervals on which f(x) = 1/(x^2) is increasing or decreasing.

Answer to question

Two gears are calibrated so that the smaller gear dives the larger gear. For each rotation of the smaller gear, how many degrees will the larger gear rotate?

q-7 How would i make an equation?

How would i find the speed of her shadow?

q-5 How would I solve this?

How would i set up the equation?

Q-1 How would i solve this with an equation?

How would i find the answer in ft/sec?

What is the principle value of

What is the principle value of

Assume that f(x,y,z) = x^2 +y^2 +z^2 +xz has a critical point at (0,0,0). Is f(0,0,0) a maximum, minimum, saddle point, or do we not have enough information to determine this?

determine the values of x such that y=x^2 and y=1/x have the same slope

Consider the function f(x,y) = x^2 − 2xy + (y^3)/3 −3y

Make sure to round to 2 decimal places

Let B = [201|020|102] (3x3 matrix)

Round to 2 decimal places

Answers all the questions

Find the answers

Solve: 2x^2+7x-=9(mod19)

Solve the congruence 3x=5(mod4), x=? where k is any integer

Cut wire two shapes, circumference of circle when A is a minimum

The points ( − 1.9 , 2.7 ) and ( 3.1 , 10.2 ) are on the graph of a linear relationship between two variables, x and y .

For the following exercises, use the given information about the polynomial graph to write the equation.

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