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pre calc
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A box without a lid will be constructed from 75 cm x 100 cm piece of cardboard, by cutting squares of the same size from each
4 answers
asked by
jenny
1,458 views
If csc A=2 find the value of sin A
4 answers
asked by
amanda
2,577 views
a kite currently flying at an altitude of 16 meters above the ground. If the angle of elevation from the ground to the kite is
5 answers
asked by
jim
2,998 views
The publisher of a magazine that has a circulation of 80,000 and sells for 1.6 a copy decides to raise the price due to
4 answers
asked by
Kate
989 views
Let t be time in seconds and let r(t) be the rate, in gallons per second, that water enters a reservoir:
r(t)=700−40t. a) For
3 answers
asked by
charlotte
1,391 views
The velocity of an aiplane heading east at 400 knots and a wind velocity of 50 knots northeast. The airplane encounters this
5 answers
asked by
Julie
1,665 views
at a single ticket booth, customers arrive randomly at a rate of x per hour.
the average line length is given by F(x)=
4 answers
asked by
wally
563 views
Which three of the twelve basic functions are bounded( above and below)?
Three of the tweleve basic functions are even. Which are
4 answers
asked by
kate
2,218 views
Simplify- (x^2+2x)/(x^2-x)
*I got x(x+2) for the numerator and I couldn't get the denominator, but it was wrong help please
3 answers
asked by
Karissa
357 views
A ramp leading to a freeway overpass is 470 feet long and rises 32 feet. What is the angle of inclination of the ramp?
4 answers
asked by
kate
4,235 views
solve following using "elimination method"
3x^2 + 4y = 17 2x^2 + 5y = 12
3 answers
asked by
Keith
1,306 views
find the fifth roots of -32i
3 answers
asked by
joe
552 views
A math teacher uses four algebra books, two geometry books, and three pre-calculus books for reference. In how many ways can the
3 answers
asked by
Katie
2,620 views
f(x)=-3x+2
a) express the slope of the secant line of each function in terms of x and h. b) find msecant for h=.5, .1, and.01 at
4 answers
asked by
rebekah
1,304 views
What is the left-hand limit of f(x) = |x-3|/x-3 as x approaches 3?
A.1 B.2 C.0 D.-1 E.-2
3 answers
asked by
rima
1,466 views
Find all solutions of the equation 3sin^2 x -7sin x +2 = 0 in the interval [0,2pi).
The answer is x_1= ?? and x_2= ?? with
3 answers
asked by
james
1,487 views
Find the exact value of sin(x-y) if sinx=-3/5 in Quadrant III and cosy=5/13 in Quadrant I.
4 answers
asked by
Jennifer
3,828 views
A jeweler wants to make a 1 ounce ring composed of gold and silver, using $200 worth of metal. If gold costs $6000 per ounce and
4 answers
asked by
Jody
1,048 views
Your computer supply store sells two types of laser printers. The first type, A, has a cost of $86 and you make a $45 profit on
3 answers
asked by
allexelle
618 views
Is there any complex numer that is equal to its conjugate?
a+bi=a-bi????? precalc 11th grade a+bi=a-bi ---> 2 bi = 0 ---> b = 0
1 answer
asked by
bill
549 views
what is the trigometric function of cos pi?
a)0 b)-1 c)1 d)undefined Paste this in your Google search window: cos(PI)
1 answer
asked by
raven 31791
324 views
What is the fifth term of the sequence
{2n - 1 / n}? a)4, b)14/5 c)7/4 d)9/5 assuming the first term is 1, and there is no good
1 answer
asked by
raven 31791
343 views
suppose you have 102m of fencing to make two side by side rectangles, making one large rectangle when put together. What is the
4 answers
asked by
Kate
4,223 views
solve each inequality:
(x-4)(x-2)^2(x-3)^2 < 0
1 answer
asked by
Kate
267 views
sketch the graph y=abs(x)+2
then sketch over the y=x line.
3 answers
asked by
Devon
365 views
Two forces of 50 and 70 N (newtons) act on an object. The angle between the forces is 40°. Find the magnitude of the resultant
4 answers
asked by
Julie
2,384 views
Take out the spaces:
h t t p : //img 151. imageshack. us/my.p hp?image=graph bb0. png 1)I need to find the intervals on which it
3 answers
asked by
kayla
337 views
Sam Bordner can dig his garden in 4 hours end Elsie Bordner takes the same amount of time. After working together for an hour,
3 answers
asked by
mary
410 views
it takes my father 3 hours to plow our cornfield with his new tractor using the old tractor it takes me 5 hours. if we both plow
2 answers
asked by
kayla
603 views
rose counted her money and found that her 25 coins which were nickels, dimes, and quarters were worth $3.20. The number of dimes
4 answers
asked by
kayla
1,875 views
how do you put these in y=mx+b form
3x+5y=8 16-5x=2y
5 answers
asked by
kate
342 views
Find AB using matrix multiplication
A= -1 0 2 4 1 -1 2 0 1 B= 2 1 0 -1 0 2 4 -3 -1
1 answer
asked by
chrissy
357 views
Find the complement and supplement of each angle.
1. 40 degrees 2. 89 degrees
4 answers
asked by
jaz
738 views
The terminal side of an angle in standard position goes through the poin (-2,5). Find the values of the 6 trig function
sin cos
2 answers
asked by
jaz
720 views
what is the domain and range of f(x) x^3?
1 answer
asked by
tom
263 views
log(x)(1/16) = -4/3
this means... x^(-4/3)= 1/16 so...the -4/3 root of 1/16... I need to get it in simplest form.
1 answer
asked by
MW
413 views
f(x)= x^2+5 g(x)= square root x-1
(f/g)(x)
3 answers
asked by
tim
390 views
Find a linear factorization of:
f(x) = x^3 + 5x - 6. thanks.
1 answer
asked by
J
282 views
an earth satellite in circular orbit 1250 kilometers high makes one complete revolution evry 90 min. What is it linear speed?
6 answers
asked by
gab
1,880 views
True or false:
a. |3x-5|=|2x+4| if and only if 3x-5=2x+4 or 3x-5= -(2x+4) ______ b. |2x+7|=-4 if and only if 2x+7=4 or 2x+7=-4
5 answers
asked by
Anonymous
321 views
list the positivve integers between -3 and 7.
3 answers
asked by
jaz
338 views
what quadrants does the point
2,4 and 0, 3 belong in
1 answer
asked by
kim
348 views
multiply and simplify (5w-radical 3x)^2
sorry my computer has no radical key!!
1 answer
asked by
Steph
334 views
what are some point for the problem
y=1/2x+2
7 answers
asked by
jasmine
253 views
f(x)=1/x+2
how do i solve this
1 answer
asked by
Anonymous
236 views
Solve: (x+5/x)+(6/x-4)=(-7/x^2-4x)
I multiplied the entire function by x and x-4 and after doing that I got down to the quadratic
4 answers
asked by
Muffy
924 views
list the positive ientegers between -3 and 7
list the integers between -3 and 7.
2 answers
asked by
kate
819 views
find the equation of a circle with.
Center (0,0), radius 2
3 answers
asked by
kim
1,113 views
use the quadratic formula to solve for x.
x^2+2x+5-0
1 answer
asked by
kate
304 views
13-5e^2x=3
1 answer
asked by
Laurie
265 views
identify if the following are functions or not explain the answer
(a)x=7y-10
1 answer
asked by
james
268 views
find the domain of the following functions
f(x)=1/x+ 5/x-3
5 answers
asked by
kim
1,094 views
find all the horizontal and vertical asymptoes of the functions
f(x)=x/(x-1) q(x)=(x-1)/x
7 answers
asked by
kim
403 views
find all local maxima and minima (the y-values) and the vales where they occur
g(x) x absolute value 2x+5 absolute value
1 answer
asked by
kate
463 views
The Identity Function
The Squaring Function The Cubing Function The Reciprocal Function The Square Root Function The Exponential
2 answers
asked by
kim
1,084 views
Find 2 functions defined implicitly by the given relations:
(a) x² + y² = 25 (b) y² = x²
4 answers
asked by
kim
1,933 views
a salt shaker is sitting 4cm from the center of a lazy susan. phoebe small spins the lazy susan through an angle of 120.
how do i
2 answers
asked by
jill
972 views
Example 1:
Let f(x) = ex and g(x) = �ãx Find: (a) f(g(x)) (b) g(f(x))
4 answers
asked by
kate
264 views
given
x=t^2 and y=t-2 find a relationship between x amd y( express y in terms of x) is the relationship a function
3 answers
asked by
kate
1,030 views
Find two functions defined implicitly by the given relations:
(a) 3x² - y² = 25 (b) y² = x
3 answers
asked by
kate
1,401 views
A square is drawn inside a square. Find the area of the square as a function of the radius of the circle.
7 answers
asked by
kim
556 views
Convert the following from degrees to radians leave your answer in terms of pi
150 degrees and 180 degrees
6 answers
asked by
kate
772 views
express the followinf trig functions in terms of an acute angle.
(a) cos 143 degrees (b) tan 192 degrees
3 answers
asked by
kate
1,313 views
find delta in each of the following case:
tan delta=-0.75
5 answers
asked by
kate
390 views
how do i tackle this problem?!?
cosx=sinx*cotx
4 answers
asked by
jill
354 views
1. For the following functions listed below:
(a) f(x) = -2cosx f(x) = 0.25sinx (b) f(x) = -3sin(2x+3)+7 f(x) = sinx + 4 Find :
1 answer
asked by
kim
415 views
(1/x^2-49)/(1/x+7)?
1 answer
asked by
Karissa
219 views
Express the function f(x)=1/(x-2)in the form g of h if h(x)=x-2. Find the function g(x).
g(x)=?
1 answer
asked by
Karissa
425 views
f(x)={8 x + 9}/(2 x + 7)(8 x + 6)
-Find the x and y intercepts. -How would I go about finding the x and y intercepts in problems
3 answers
asked by
Karissa
389 views
How do you solve this?
(sinx + cosx)^2 - 1 = sin^2x
1 answer
asked by
jill
292 views
suppose beta is an angle in the second quadrant and tan beta=-2. Fine the exact vaule of sin beta and cos beta
2 answers
asked by
Danika
554 views
An initial investment of $12,000 is appreciated for 5 years in an account that earns 7% interest, compounded quarterly. Find the
2 answers
asked by
joanie
1,229 views
a roll of carpet is 9ft wide is 30 ft longer than a roll of carpet 15 ft wide. both rolls have the same area.find the dimemsions
1 answer
asked by
eric
344 views
(4^x2)^2 mulipled by 1/(4^5x)=64
1 answer
asked by
sarah
338 views
Determine between which consecutive integers one or more real zeros of f(x) = –x3 + 2x2 – x – 5 are located
4 answers
asked by
shayla
2,561 views
prove identity cscx-(cosx)(cotx)=sinx
2 answers
asked by
logan
978 views
simplify: 2^x X 2^y +2^x X 2^y + 2^x X 2^y + 2^x X 2^y
1 answer
asked by
Bill
239 views
solve the equation
1+4sin(x)=4cos^2(x)
3 answers
asked by
bandit5571
380 views
find f(x) and g(x) such that h(x)= (fog)(x)
h(x)= 1/sqrt3+7
1 answer
asked by
cf
301 views
i have to use the inverse of tangent to find a missing angle in a triangle. the know sides are x+1 and 10. since i am using
1 answer
asked by
crim
414 views
find the exact values of the six trigonometric functions of theta if the terminal side of theta in standard position contains
1 answer
asked by
Marcy
519 views
find the exact values of the six trigonometric functions of theta if the terminal side of theta in standard position contains
3 answers
asked by
Marcy
558 views
in many parts of the coutry the average temp of a particular area may be modeled by a sin usoidal function. According to NCDC
1 answer
asked by
bandit55751
449 views
Find the critical number of the function.
g(t) = | 6t - 9 | t =
1 answer
asked by
alison
364 views
Solve the lograthmic function:
ln(X+5) = ln(X-1) - ln(X+1) The answer has no solution but I do not know how to come to that
3 answers
asked by
Laura Grace
340 views
lnX + ln2 = 3
1 answer
asked by
Linda
345 views
lnX + ln2 = 3
2 answers
asked by
jenna
560 views
Lighthouse B is 8 miles west of lighthouse A. A boat leaves A and sails 5 miles. At this time, it is sighted from B. If the
3 answers
asked by
lauri
1,386 views
cos2x=cosx in interval of [0,2pie]
3 answers
asked by
caitlyn
520 views
the longest side of a triangle is 34 feet. the measures of two angles of the triangle are 40 and 65 degrees. find the lengths of
2 answers
asked by
g
1,277 views
write the form of the partial decomposition for the given rational expression. Don't solve for constants:
8x+10/x^2+7x-18 please
2 answers
asked by
esora
925 views
A polynomial f(x) with real coefficients and leading coefficient 1 has zeros 6 + 4i, -5 + i and degree 4. Express f(x) as a
3 answers
asked by
gabs
1,751 views
find the fourth roots of 1-root3i
1 answer
asked by
joe
278 views
Find an equation of the cubic polynomial f(x) = ax3 + bx2 + cx + d that passes through the given points.
P(0,-4) Q(1,-8) R(-1,-8)
3 answers
asked by
gabs
912 views
Find the values of b such that the system has one solution.
x^2 + y^2 = 36 y= x+b and then they give me an answer box b=_________
4 answers
asked by
gabs
469 views
find the exact solution algebraically and check it by substituting into the orginal equation.
1. 36(1/3)^x/5=4 2. 32(1/4)^x/3=2
2 answers
asked by
caleb
469 views
find exact solution algebraically and check it by substituting into the original equation.
2(10^-x/3)=20 logtiny4(x-5)=-1
2 answers
asked by
celeste
470 views
factor
((5a^2+12a+4)/(a^4-16)) / ((25a^2+20a+4)/(a^2-2a))
2 answers
asked by
jan
567 views
A graph of y = cos(1/2 x) - sin( x) for -4ð x 4ð is shown in the figure. Assume z = 4.
(the figure is just the graph) its
3 answers
asked by
g
714 views
The length of a rectangle is three times its width.
If the area of the rectangle is 45 ayrds squared , find its perimeter.
1 answer
asked by
manny
316 views
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