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Pre-Calc
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How do I simplify (tan x/(1 + sec x))+((1 + sec x)/(tan x))?
1 answer
asked by
Anonymous
337 views
As of today, Jeff's age is three times Ming's age. Tina's age is four more than two times Ming's age. Next year, Jeff's age will
3 answers
asked by
Austen
805 views
The travel time between two cities is inversely proportional to the average speed. A train travels between the cities in 3 hours
6 answers
asked by
Pre-Calc
701 views
The CN Tower in Toronto, Canada, is the tallest free-standing structure in North America. A woman on the observation deck, 1150
4 answers
asked by
Susan
2,063 views
Solve for 0 <= x < 2pi.
csc^2 (x) = 4 I know one answer is pi/6. Would the others be 5pi/6, 7pi/6, and 11pi/6?
3 answers
asked by
Anonymous
409 views
How to simplify secx(sinx/tanx)?
4 answers
asked by
Anonymous
2,437 views
How do I write sin(arcsinx + arccosx) as an algebraic expression?
7 answers
asked by
Anonymous
5,968 views
Find the exact value of sin345 degrees using a sum or difference formula.
I got (-sqrt6 + sqrt2)/4. Is this right?
2 answers
asked by
Anonymous
672 views
What is the standard form of the equation of the parabola that has a vertex at (4, 3) and passes through the point (-4, -2)?
Is
3 answers
asked by
Anonymous
973 views
If sin θ=5/13 and cos x=4/5
Find cos (θ+x) So far, I came up with the answer: (±48 - (±15)) / 65 And I know that the answer
2 answers
asked by
Mosaab
477 views
An open gift box is to be made from a square piece of material by cutting four-centimeter squares from each corner and turning
2 answers
asked by
Katie
581 views
Solve the quadratic equation by factoring. Check your solutions in the original equation. (Enter your answers as a
2 answers
asked by
Katie
540 views
Solve this system of linear equations.
5x+2y-7z=-13 9y+z=29 z=2 Is this -1, 3, 2?
1 answer
asked by
Anonymous
351 views
How do I write the partial fraction decomposition of 7/(x^2+13x+40)?
2 answers
asked by
Anonymous
615 views
If tan theta equal - square root of 22 divided by 11 and pie/2 is less than theta and theta is less than pies, what is the cos
3 answers
asked by
Stephanie
439 views
A slice 1 unit thickness is removed from one see of a cube. Use the rational zeroes theorem and synthetic division to find the
2 answers
asked by
Dee
495 views
Write the quadratic equation whose roots are 2 and 1, and whose leading coefficient is 1
Not sure even how to start?
1 answer
asked by
Dee
435 views
An exponential function may have a coefficient. In these cases, the equation is often written as f(x) = ab^x, where a is the
1 answer
asked by
Anonymous
355 views
Assume that x, y, z and b are positive numbers. Use the properties of logarithms to write the expression logb(4) sqrt((x^7
2 answers
asked by
Anonymous
524 views
Solve the following algebraically.
log3(x) + log3(x-2) = 1 Are the solutions 3 and -1?
3 answers
asked by
Anonymous
640 views
A pilot is flying over a straight highway. He determines the angles of depression to two mileposts, 3 mi apart, to be ∠x =
2 answers
asked by
Kate
937 views
Help solving this please. I am unsure how to do it?
Determine the domain of the following functions, write answer using interval
3 answers
asked by
Juniper
374 views
An initial investment of $9000 grows at an annual interest rate of 5% compounded continuously. How long will it take to double
3 answers
asked by
Anonymous
2,104 views
Find the sum of the series 1 + 2 + 4 + 5 + 7 + 8 + 10 + 11 + ... + 299, which is the sum of the integers from 0 to 300, omitting
3 answers
asked by
Anonymous
548 views
If five girls and five boys stand in a circle, how many arrangements are possible provided they stand alternately (girl, boy,
1 answer
asked by
Anonymous
442 views
Write the first five terms of the sequence.
a(n) = ((-1)^n x^(2n + 1))/(2n + 1)! Not sure about how to deal with the x here. Will
1 answer
asked by
Anonymous
339 views
for any two linear functions f(x)=ax+b and g(x)=cx+d, is f o g the same as g o f?
1 answer
asked by
Payton
310 views
If sin(theta) = -0.8 and theta is in the third quadrant of the xy plane, what is cos(theta)?
4 answers
asked by
Tito
1,009 views
Three cards are chosen at random from a standard 52-card deck. Find the probability that all three cards are hearts given that
2 answers
asked by
Anonymous
610 views
Five cards are dealt from a standard deck of 52 cards. What is the probability that three or four of the cards are aces?
2 answers
asked by
Anonymous
479 views
Verify the identity. Show your work.
cot2x + csc2x = 2csc2x - 1 1+cosec^2x +cosec^2x Cot^2x+cosec^x= 1+2 cosec^2x Would this be
3 answers
asked by
Liz
784 views
For the data set shown by the table,
a. Create a scatter plot for the data. (You do not need to submit the scatter plot) b. Use
1 answer
asked by
Liz
877 views
Find the vertical asymptotes, if any, of the graph of the rational function. Show your work.
f(x) = (x-4)/(x(x-4)) How would I
2 answers
asked by
Liz
666 views
Find the probability for the experiment of selecting one card from a standard deck of 52 playing cards such that the card is a
3 answers
asked by
Anonymous
1,856 views
An airplane’s velocity with respect to the air is 630 mph, and its heading is 𝑁 30° 𝐸. The wind, at the altitude of the
5 answers
asked by
Sofia
652 views
Hi,
Find the exact value of the following expression: Sin^-1(1/radical2) (Its inverse sin(1/radical2) Direction -(Type your
2 answers
asked by
Chizoba
508 views
Hi, can someone please teach me how to solve this?
Find the exact value of the trigonometric expression
3 answers
asked by
chizoba
485 views
Hello I'm stuck with these two questions
The point (1,-2) is on the graph of . Describe the following transformations on , and
1 answer
asked by
Malik
380 views
A vehicle has an engine that is connected directly to a gear box. In the highest gear, a 2 inch radius gear is turning a 14 inch
2 answers
asked by
Caitlynn
568 views
A force, F, on a body of mass m causes the body to accelerate. Denote the acceleration of the body by a. The relationship
2 answers
asked by
Math
582 views
After release at ground level, a balloon rises 100 feet in 30 seconds. During each succeeding 30 seconds, it rises 9/10
as far as
2 answers
asked by
Emily
580 views
What is the average rate of change of the function f, given by f(x) = x2 + 1, on the interval [2,5]?
2 answers
asked by
cool
476 views
Since cot x = cos x / sin x, if cot x = 1/2, with the angle x in the first quadrant,
then cos x = 1 and sin x = 2 (1) State true
4 answers
asked by
Rena
627 views
1. Calculate the period of sin(3x), cos(3x), and tan(3x).
2. Calculate the period of sin(x), tan(x), sin2(x) and tan2(x). Please
1 answer
asked by
cool
426 views
Find the values of e,a,b,and c for r=21/5-2costheta?
2 answers
asked by
Anonymous
682 views
Use a graphing device to find all solutions of the system rounded to two decimal places.
x-3y=1 y=x^3-5x^2 There are 3 possible
2 answers
asked by
Anonymous
526 views
Can y'all help: The number of pounds of apples a cannery can produce and the processing cost are P(h) = 375h and C(n) = 0.35n +
1 answer
asked by
Jackie
399 views
Find (f/g)(x) for f(x) = 1/x and g(x) = x^3. Show work and state the domain of (f/g)(x)
1 answer
asked by
Lily
334 views
can you help me find the inverse of this function algebraically please?
f(x) = 2x^3 + 1
3 answers
asked by
Lily
401 views
The intensity I of light received from a source varies inversely as the square of the distance d from the source. If the light
2 answers
asked by
Lily
1,041 views
Two farmers were plowing along the edges of a triangular cornfield. They both started at the same corner of the field. The first
1 answer
asked by
Anonymous
447 views
If a pilot wants to travel 400 mph at a bearing of 80, what should he set his speed and bearing to counteract a wind blowing at
2 answers
asked by
Anonymous
474 views
cos^3 = (1/2 cosx)(1+cos2x)
Please make the left match the right.
4 answers
asked by
Amy
1,231 views
A polynomial function f(x) with real coefficients has the given degree, zeros, and solution point.
Degree: 3 Zeros: -2,2+2√2i
4 answers
asked by
Ben Dover III
4,897 views
A rectangle has an area represented by the expression x^2-7x-8 = a
The shortest side can be represented as x - k What is the
3 answers
asked by
Anonymous
554 views
How do you simplify the formula (v^2sinxcosx)/2g?
1 answer
asked by
Anonymous
396 views
Sock Drawer had 10 white socks and 4 black socks. List and count possible combinations:
1) of two socks, if order matters 2) of
2 answers
asked by
Wendy
502 views
write the equation for an ellipse with y intercepts (0,-3) and (0,3) and the major axis of length 10.
major axis is 10=2a so that
1 answer
asked by
Russell
444 views
A hot-air balloon is floating above a straight road. To estimate their height above the ground, the balloonists simultaneously
2 answers
asked by
Amber
688 views
I need help for this question
b=7 c=10 A=40 degrees I need to find a b and c. (b and c need to be in degrees)
1 answer
asked by
Kevin
387 views
Alexa is weighing a construction barrel up a ramp 4 feet long into the back of a truck. The barrel weighs 120 pounds and the
3 answers
asked by
Ken
917 views
Suppose that x=x(t) and y=y(t) are both functions of t. If
x^2+y^2=2, and dx/dt=5 when x=1 and y=1, what is dy/dt?
3 answers
asked by
Emily
612 views
A pig rancher wants to enclose a rectangular area and then divide it into four pens with fencing parallel to one side of the
7 answers
asked by
Emily
1,400 views
Convert 2e^((pi*i)/6) to rectangular form
2 answers
asked by
Aaryan
698 views
Verify (csc^2x-1)/cos^2x=csc^2x.
After making (csc^2x-1) into ((1/sin^2x)-1) and cos^2 into 1-sin^2x, what do I do next??
3 answers
asked by
Vena
269 views
A box with a square base and no top is to be made from a square piece of cardboard by cutting 6 in. squares from each corner and
1 answer
asked by
Anonymous
401 views
A population of bacteria is growing according to the equation P(t)=850e^0.15t. Estimate when the population will exceed 2253.
t=
2 answers
asked by
Anonymous
1,025 views
An exponential function f(x)=a(b)^x passes through the points (0,9000) and (2,2250). What are the values of a and b?
3 answers
asked by
James
1,281 views
The fox population in a certain region has a continuous growth rate of 9 percent per year. It is estimated that the population
3 answers
asked by
Will
1,395 views
Use the Laws of Logarithms to rewrite the expression
log⌄3(x^3 sqrt3 y^2) in a form with no logarithm of a product, quotient or
3 answers
asked by
Anonymous
533 views
Outside temperature over a day can be modeled as a sinusoidal function. Suppose you know the high temperature of 67 degrees
4 answers
asked by
David
2,138 views
One earthquake has MMS magnitude 3.1. If a second earthquake has 970 times as much energy (earth movement) as the first, find
2 answers
asked by
joe
565 views
The partial fraction decomposition of x^2 +18/(x-3)(x^2+4) can be written in the form of f(x)/x-3 + g(x)/x^2 +4.
The possible
1 answer
asked by
Fred
391 views
Use the given functions to find g(f(x)), and give the restrictions on x.
f(x)=1/x-4 g(x)=(3/x)+4 I'm having trouble find the
6 answers
asked by
Jimmy G
352 views
Find and simplify h(x)/g(x); hint: you will need to factor h(x)
h(x)= 16x^2 - 14x - 36 g(x) = 2x - 4
3 answers
asked by
Patrick M
344 views
What is the domain of the function?
f(x) = 4/(√x-3)
1 answer
asked by
Anon
202 views
Fencing is used to make a rectangular corral with length x feet and width y feet. Then more fencing is used to form a partition
3 answers
asked by
Anonymous
660 views
The path of an object projected at a 45-degree angle with an initial velocity of 60 feet per second is given by the function
5 answers
asked by
Mathhelper help
565 views
I have to find the degree and leading coefficient for polynomial:
x^2(2x- 2)^2 My question is do I have to multiply (2x-2) x
5 answers
asked by
Anonymous
255 views
Given the function f(x) = n^7 + 5n^10 + n^8 + n there are at most ___ x intercepts and at most ___ turning points
Can someone
5 answers
asked by
Anonymous
170 views
A polynomial function f with real coefficients has zeros of 2, -4, and 1. The polynomial also contains the point f(-1) = 6.
1 answer
asked by
Anonymous
309 views
Recall the compound interest formula A = a(1 + r/k)^(kt). Use the definition of a logarithm along with properties of logarithms
1 answer
asked by
Anonymous
319 views
The radius r, in inches, of a spherical balloon is related to the volume V by r(V)= ∛3V/4π
Air is pumped into the balloon so
4 answers
asked by
Anonymous
376 views
5. Find the area of a sector of a circle with a diameter of 8 cm and a central angle that measures 2pi / 3 radians.
1 answer
asked by
Bart
145 views
3. Find the radian measure of rotation where a point 3.5 cm from the center of rotation travels 20cm.
<3
1 answer
asked by
Bart
161 views
An airplane is flying at an altitude of 15,000 ft. The angle of depression from the plane to an observation post (on the ground)
1 answer
asked by
Bart
216 views
Find the area of a regular 36-sided polygon inscribed in a circle of radius 20
4 answers
asked by
Hani
114 views
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