15,254 Answered Questions for the topic precalculus

Precalculus Trigonometry

02/19/23

someone explain…

in  the triangle the length of side b is 7 the m<A= 60 .find the exact length of a and c. Exact means that you cannot give a decimal. You will need to give either an integer, a fraction or a... more
Precalculus Calculus

02/19/23

How much will Kosumi be paid if he sells 420 glow sticks? & How many glow sticks did Kosumi sell if he earned $733.80?

FYI: I currently need help. So you see I only need help in writing this into an equation. I can solve everything else I tend to have trouble with word problems.Kosumi got a job selling glow sticks... more
Precalculus

02/19/23

I simply need to figure out how to write this into an equation and then solve.

Simple interest is given by the formula A=P+Prt�=�+���. Where A� is the balance of the account after t� years, and P� is the starting principal invested at an annual percentage rate of r�,... more
Precalculus Math Trigonometry

02/18/23

Solve the equation secx cscx = 2secx

Precalculus Math Trigonometry

02/18/23

Solve the equation sine[Arccos 2/7]=

Please show step by step solution and explanation.
Precalculus

02/18/23

Determine the growth rate in the following exponential function:

T(f)=300(3^sqrt(27))^t
Precalculus Trigonometry

02/17/23

Quick?!?!!????!?

in  the triangle the length of side b is 7 the m<A= 60 .find the exact length of a and c. Exact means that you cannot give a decimal. You will need to give either an integer, a fraction or a... more
Precalculus

02/17/23

How would I calculate population decay?

In a small town named Winchester, the population today is 6722 . For the last five years, the population has declined by 8% every year. If the decline stay the same, what is the expected... more
Precalculus

02/16/23

Pre calculus HW

Find the exact value of the given expression.sec(2 sin^-1(1/8))
Precalculus

02/16/23

Pre calculus HW

Simplify the expression by using a Double-Angle Formula or a Half-Angle Formula.square root 1-cos(8theta)/2
Precalculus

02/16/23

Pre calculus HW

Use the formulas for lowering powers to rewrite the expression in terms of the first power of cosine, as in Example 4.cos^6(x)
Precalculus

02/16/23

If cot(θ)=3/5 and θ is in quadrant III, find sinθ and secθ.

Precalculus Trigonometry

02/16/23

QUICK HELP?!? ?!?!

please show work in the triangle the length of side b is 7 the m<A= 60 .find the exact length of a and c. Exact means that you cannot give a decimal. You will need to give either an integer, a... more
Precalculus Trigonometry

02/16/23

Can someone explain?!?!?!

in the triangle the length of side b is 7 the m<A= 60 .find the exact length of a and c. Exact means that you cannot give a decimal. You will need to give either an integer, a fraction or a... more
Precalculus Trigonometry

02/16/23

Can someone explain?!?!?!!?

The following is the work for using the unit circle in find the exact value of sin 17π/3a)which step has the first error?b)explain the error1)find the coterminal angle17π/3-2π=5π/32) using the unit... more
Precalculus

02/16/23

Can someone explain???

following is the work for using the unit circle in find the exact value of sim 17π/3a)which step has the first error?b)explain the error1)find the coterminal angle17π/3-2π=5π/32) using the unit... more
Precalculus Math

02/16/23

A factory is to be built on a lot measuring 270 ft by 360 ft. A local building code specifies that a lawn of uniform width and equal in area to the factory must surround the factory.

What must the width of the lawn be? ___________If the dimensions of the factory are A ft by B ft with A < B, then A = ________ and B = ___________required to show work mathematically.
Precalculus Trigonometry

02/15/23

I need help with another trigonometry question!

Find the distance along an arc on the surface of the earth that subtends a central angle of 10 minutes (1 minute = 1/60 degree). The radius of the earth is 3960 miles. Round to the thousands.
Precalculus

02/15/23

Helpppppppp????

1) Let y=- 6/7 be the y coordinate of the point p(x,y) where the terminal side of the angle 0(standard position) meets the unit circle if p is in III what is the Cos(0)the work includes drawing the... more
Precalculus

02/15/23

The secant of an angle is sec(x)=13/5 what is its tangent?

The secant of an angle is sec(x)=13/5 what is its tangent?
Precalculus

02/15/23

The secant of an angle is sec(x)=13/5 what is its tangent?

The secant of an angle is sec(x)=13/5 what is its tangent?
Precalculus

02/15/23

In a college meal plan you pay a membership fee, then all of your meals are at a fixed price per week. If 20 meals cost $150.5 and 60 meals cost $310.5 , answer the following questions:

In a college meal plan you pay a membership fee, then all of your meals are at a fixed price per week. If 20 meals cost $150.5 and 60 meals cost $310.5 , answer the following questions:a) Write a... more
Precalculus

02/15/23

I been stuck on this all day….

Point p(-3,4) is on the terminal side of an angle 0 which of the following is exact value of cos0Draw the right triangle in correct orientation (correct Quadrant) on the coordinate planlabel the... more

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