15,254 Answered Questions for the topic precalculus

09/25/23

Helpppp.. Algebraa.. Urgent
Find the exact value of each x∈[0,2π) for which cos^2 (x)= (1/2) sin(2x). If g(x)=5+3x/ x−3 What is the domain of g(x)? Verify (with sketch and/or short argument) that g is a one-to-one... more
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09/25/23

Algebera HELPP!!. Urgent

I have done the work but the teacher told me it's wrong can someone please help me with this? With steps? I am confusedWhen a cell cycle for an unknown organism starts, its cells start replicating... more
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09/25/23

ALGEBRA HELPP!!!.

I am confused about this question because of ln, can someone explain these in steps? G(x) = ln (1−x^2) and f(x) =√(x+3), what is the subset of the domain of g at the composition of f(g(x))? Domain... more
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Precalculus Calculus Trigonometry

09/24/23

This exercise involves the formula for the area of a circular sector.
This exercise involves the formula for the area of a circular sector.The area of a sector of a circle with a central angle of 5𝜋/12 rad is 19 m2. Find the radius of the circle. (Round your answer... more
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Precalculus Calculus Trigonometry

09/24/23

This exercise involves the formula for the area of a circular sector.
This exercise involves the formula for the area of a circular sector.The area of a circle is 700 m2. Find the area of a sector of this circle that subtends a central angle of 2 rad. (Round your... more
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Precalculus Calculus Trigonometry

09/24/23

This exercise involves the formula for the area of a circular sector.
This exercise involves the formula for the area of a circular sector.Find the area of a sector with central angle 7𝜋/8 rad in a circle of radius 14 m.
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Precalculus Calculus Trigonometry

09/24/23

This exercise involves the formula for the area of a circular sector. The area of a sector of a circle with a central angle of 5𝜋/12 rad is 19 m2. find the radius of the circle
This exercise involves the formula for the area of a circular sector.The area of a sector of a circle with a central angle of 5𝜋/12 rad is 19 m2. Find the radius of the circle. (Round your answer... more
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Precalculus Calculus Trigonometry

09/24/23

This exercise involves the formula for the area of a circular sector. The area of a sector of a circle with a central angle of 5𝜋/12 rad is 19 m2. find the radius of the circle
This exercise involves the formula for the area of a circular sector.The area of a sector of a circle with a central angle of 5𝜋/12 rad is 19 m2. Find the radius of the circle. (Round your answer... more
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Precalculus Calculus Trigonometry

09/24/23

The measure of an angle in standard position is given. Find two positive angles and two negative angles that are coterminal with the given angle.

The measure of an angle in standard position is given. Find two positive angles and two negative angles that are coterminal with the given angle. (Enter your answers as a comma-separated list.)The... more
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Precalculus Calculus Trigonometry

09/24/23

The measure of an angle in standard position is given. Find two positive angles and two negative angles that are coterminal with the given angle. (Enter your answers as a comma-separated list.) 70°
The measure of an angle in standard position is given. Find two positive angles and two negative angles that are coterminal with the given angle. (Enter your answers as a comma-separated list.)70°
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Precalculus Test Preparation

09/23/23

Arc length of a sector
On a circle of radius 5m, what is the arc length of a sector whose central angle is 7 Pi / 6?
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Precalculus Test Preparation

09/23/23

Determine if functions are odd, even or and their symmetries, if any
a. f(x)=x^3+xb. g(x)=Pic. h(x)= sin x / x^2 +5d. k(x) = cos x / e^x
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Precalculus

09/23/23

Unit Circle: Quadrant
The point P is on the unit circle. If the y-coordinate of P is 1/2, and P is in quadrant II, then:x=Can I have an explanation? It's a bit confusing to me.
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Precalculus

09/22/23

A hamster running in a wheel of radius 11 cm spins the wheel one revolution in 12 seconds.
A hamster running in a wheel of radius 11 cm spins the wheel one revolution in 12 seconds.a) a) What is the angular velocity of the wheel? (in radians/sec)b) At what linear velocity is the hamster... more
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Precalculus

09/22/23

Pre-Calculus question
You have 764 feet of fencing to enclose a rectangular plot of land with one side along a river. No fencing is to be used on the side of the plot along the river. Find the dimensions of the plot... more
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Precalculus

09/22/23

Solve a Triangle

Suppose that triangle ABC is a right triangle with a right angle at C and hypotenuse c. Also note that a is the length of the side opposite angle A and b is the length of the side opposite... more
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Precalculus Trigonometry

09/22/23

Show the Steps for (sec 𝜃 + tan 𝜃)(sec 𝜃 − tan 𝜃) = 1.
Use trigonometric identities to transform the left side of the equation into the right side (0 < 𝜃 < 𝜋/2).(sec 𝜃 + tan 𝜃)(sec 𝜃 − tan 𝜃) = 1
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Precalculus Algebra 2

09/21/23

The first row in a theatre contains 7 seats, the second row contains 11 seats, and the third row contains 15 seats. If the theatre contains 1914 seats total, how many rows of seats are in the theatre?
The first row in a theatre contains 7 seats, the second row contains 11 seats, and the third row contains 15 seats. If the theatre contains 1914 seats total, how many rows of seats are in the... more
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Precalculus Math Calculus Statistics

09/20/23

Please solve this question
In January 2010, a team of epidemiologists identified a sample of 12,525 women, 50- 65 years of age, in Denver, for a study of osteoporosis. Tests indicated that 6% of these women already had... more
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Precalculus

09/20/23

Help with Continuous Growth
Write the exponential function y=16(1.2)^t in the form y=ae^kt.c) The continuous growth rate is ? % per year (round to the nearest 0.01%)I got the answer 18 but the math homework marks it as wrong.
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Precalculus

09/19/23

Help with Population Questions

A population, P(t)P(t) (in millions) in year tt, increases exponentially. Suppose  P(9)=17  and  P(16)=25. a) Find a formula for the population in the form P(t)=ab^t. Enter the values you found... more
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Precalculus

09/19/23

Find the half-life

Find the half-life of an element which decays by 3.402% each day.
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Precalculus

09/19/23

A 39-foot tall ladder leans up against a building so that the angle between the ground and the ladder is 89°. How high does the ladder reach up the side of the building? Round to nearest hundredth
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Precalculus

09/19/23

quadratic equation
An astronaut on the moon throws a baseball upward. The astronaut is 6​ ft, 6 in.​ tall, and the initial velocity of the ball is 50 ft. per sec. The height s of the ball is given by the equation... more
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Precalculus

09/18/23

70 ft long and 60 feet wide at one corner. the rest of the land outside the building forms a parking lot. if the parking lot has area 5800 what are the dimensions of the entire plot of the land
a square plot of land has a building 70 ft long and 60 feet wide at one corner. the rest of the land outside the building forms a parking lot. if the parking lot has area 5800 what are the... more
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