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Find a formula for the nth term if...
a)the 8th term is 8 and the 20th term is 44 b) the 8th term is 4 and the 18th term is -96
5 answers
asked by
Rebekah
3,780 views
An investment of $37,000 was made by a business club. The investment was split into three parts and lasted for one year. The
4 answers
asked by
Kai
2,979 views
Element X is a radioactive isotope such that every 86 years, its mass decreases by half. Given that the initial mass of a sample
5 answers
asked by
Josh
2,883 views
Let x, y, and z be real numbers such that cos(x) + cos(y) + cos(z) = sin(x) + sin(y) + sin(z) = 0.
Prove that cos(2x) + cos(2y) +
4 answers
asked by
Pip
720 views
Ryan invested \$4,800$4,800 in an account in the year 1990, and the value has been growing exponentially at a constant rate. The
4 answers
asked by
Josh
1,451 views
Given log2=0.3010, log3=0.4771, log5=0.6690, and log7=0.8451...
Find a.) log8 b) log5/7 c.) log1.5 d.) log3/14 e) log12 I didn't
3 answers
asked by
Katie
721 views
To which set(s) of numbers does the number sqrt -16 belong? Select all that apply.
real numbers complex numbers*** rational
4 answers
asked by
Max
5,259 views
The complex number -3 + 2i is one zero for a polynomial function. Which complex number must also be a zero for this function?
-3
6 answers
asked by
Max
2,468 views
A boat that travels at 16 knots in calm water is sailing across a current of 3 knots on a river 250 m wide. The boat makes an
3 answers
asked by
Natalie
744 views
Find the standard form of the equation of the hyperbola with the given characteristics.
foci: (±4, 0) asymptotes: y= +/- 3x
4 answers
asked by
lllll
2,560 views
The number N of bacteria in a culture is given by the model N=250e^kt where t is the time (in hours). If N=280 when t=10
3 answers
asked by
L
1,996 views
Evaluate
Tan[(3pi-70000pi)/2]
3 answers
asked by
Megan
550 views
#1
For what positive numbers will the cube of a number exceed four times its square? #2 For what positive numbers will the cube
4 answers
asked by
Rebekah
2,642 views
A colony of 1000 weevils grows exponentially to 1750 in one week. a) At what continuous rate is the population growing?
b) How
3 answers
asked by
Waleed
884 views
A ship travels downstream for 36 miles and then makes the same return trip upstream. The trip downstream took 3/4 of an hour
7 answers
asked by
Zack
1,001 views
Nathaniel invested $2,900 in an account paying an interest rate of 5.4% compounded continuously. Assuming no deposits or
4 answers
asked by
jak
2,739 views
I have a couple questions, I need to know how to solve these type of problems.
X^2 -4< X + 16 5/n+2 - 5/n = 2/3n 2X^3-x^2-6X + 1/
1 answer
asked by
<3 A
465 views
Find the exact solutions to each equation for the interval [0,360)
2cosx-secx = 1
3 answers
asked by
Sean
1,423 views
Find the values of x between (or equal to) 0 and 360 degrees to satisfy each equation.
arcsin1/2=x I got 30 degrees as one angle,
5 answers
asked by
George
1,248 views
Hello, i need help doing a proof, im pretty sure on how to do it but not that way my teacher wants it. He wants it in a chart
2 answers
asked by
Roger
927 views
The sides of a triangle form an arithmetic sequence with a common difference of 2. The ratio of the measure of the largest angle
3 answers
asked by
Megan
643 views
In this function, f(x)= [2/(x-3)]+1: I know it is a rational function and the graph moves 1 unit up and 3 units right. I also
3 answers
asked by
Christina
421 views
How would I simplify the following, but leave it in factored form?
[(2x+7)^6 x 5(x-2)^4] + [(x-2)^5 x 6(2x+7)^5 x 2] If you can
3 answers
asked by
Joe
960 views
(e^x - 1 )/(x^2 - 1) < 0
Any way to get started? I'd appreciate any help. And also, xlnx + 1 > x + lnx
4 answers
asked by
Joe
418 views
An open-top shipping crate with square bottom and rectangular sides is to hold 32 in^3 and requires a minimum amount of
3 answers
asked by
Joe
880 views
Hello, good afternoon.
I need help with my precalc hw. we are learning about finding zeros I don't which method I should use for
4 answers
asked by
Samya
1,060 views
I don't know if i did this correctly
is(x-1) a factor of 17x^10+16x^6+1 its no.. right?
1 answer
asked by
Vi
354 views
if a question says is -a a zero of (some equation)
can you just plug in all the x's as -a and see if you get zero?
1 answer
asked by
Vi
300 views
how do u find the zeros of x^3+13x^2-16x+8? w/o a calc?
1 answer
asked by
Kate
327 views
What does something have to be inorder to be considered a function.
I'm not talking about the verticle line test or somethng to
3 answers
asked by
Lauren
495 views
if you have how do u do 2^2x - 2^x - 6 =0 (calc)how do u do it? using logs??
3 answers
asked by
Spencer
309 views
NY has 560 cars for 1000 residents. The current population of NY is 12,929,000 and rate of growth of the population is 0.02%. NY
6 answers
asked by
Xi
416 views
Can you simplify radical 253?
1 answer
asked by
MUFFY
351 views
i need help with this equation anything help will be greatly appreciated
find the standard equation of a parabola with a focus
2 answers
asked by
Natali
478 views
I think it was skiped can you post resposne in this question
h t t p : / / w w w . j i s k h a . c o m / d i s p l a y . c g i ?
1 answer
asked by
Kate
278 views
Find the smallest positive answer to the equation: sin(2x)=1
2 answers
asked by
Lori
536 views
Represent the complex number graphically and find the standard form of the number 5(cos 135* + isin 135*)
1 answer
asked by
Jessica
443 views
How to solve this inequality and graph?
(2x+5)/(x+1) > (x+1)/(x-1) would I first get rid of x-1 and divide x+1 over to get
1 answer
asked by
Amy~
443 views
Fred hits a baseball 3 ft above ground at a velocity of 100 ft per sec and at an Angle of 45 degrees with respect to level
2 answers
asked by
Jackk
964 views
A woman made $45,000 during the first year of her new job at city hall. Each year she received a 10% raise. Find her total
3 answers
asked by
bj
817 views
Find the indicated nth term of the geometric sequence.
7th term a5: -2/81 a9: -2/6561 I know the formula is an= a1 r ^ n-1 but I
3 answers
asked by
Ande
829 views
In 1992, the average cost of a ticket on a privately-owned airline was $145. This amount has increased by approximately $51
2 answers
asked by
sk
681 views
Find the vertex and focus of the parabola.
(x^2)-(24y) = 0
4 answers
asked by
barb
1,758 views
Find the center and vertices of the ellipse.
4x^2 + 16y^2 - 64x - 32y + 208 = 0
3 answers
asked by
pat
564 views
There's f(x) = (2x+3)/(x+4)
and g(x) = (4x-3)/(2-x) Solve for x in f(g(x)) I tried this but I could not end up with the answer
4 answers
asked by
Anonymous
369 views
What annual rate of interest is required to double an investment in 3 years?
4 answers
asked by
Amy
379 views
how to solve 5(2^(3x)) = 8
Steps too please answer is ln 1.6 / 3 ln 2
4 answers
asked by
Amy
299 views
how to solve for x:
500e^(0.3x) = 600 Steps please.
1 answer
asked by
Amy
388 views
Solve for x
log[1/3](x^(2) + x) - log[1/3] (x^(2) - x) = -1 Steps too please. so far I tried this and I got 3 = (x+1) / (x-1)
2 answers
asked by
Amy
810 views
2^(x) = 0
what should x be to get 0?
1 answer
asked by
Amy
217 views
How to solve for x:
2^(2x) + 2^(x) -12 = 0 Steps too I tried solving this but I ended with ln(12) / 2ln(2) + ln(2) but the real
1 answer
asked by
Amy
338 views
Solve for x
log[1/3](x^(2) + x) - log[1/3] (x^(2) - x) = -1 Steps too please. so far I tried this and I got 3 = (x+1) / (x-1) I
3 answers
asked by
Amy
302 views
how to write each expression into a single logarithm.
3log[4]x^(2) + (1/2)log[4]�ã(x) the answer is: (25/4)log[4]x steps please
2 answers
asked by
Amy~
612 views
how to write each expression into a single logarithm.
ln(x-1/x) + ln(x/x+1) - ln((x^(2)-1)) the answer is: -2ln(x+1) steps please
3 answers
asked by
Amy~
537 views
chande into a single logarithm
(1/2)ln(x^(2)+1)-4ln(1/2)-((1/2)[ln(x-4)+lnx] ) steps to please
1 answer
asked by
Amy~
393 views
(2^(x))(5)=10^(x)
steps too please how to solve
1 answer
asked by
Amy~
300 views
What is the degree of the following polynomial equation?
(x+9)(x-5)(x+2)=0 1. 2 2. 3 3. 4 4. 5
1 answer
asked by
CJ
307 views
What name is given to figures (wave) to indicate that points are attracted to only certain regions in the plane and no to
1 answer
asked by
Carl
294 views
How do adjM work?
3 answers
asked by
Tory
328 views
Hello I need help with this question. I know that the formula for angular velocity is w= theta/time. I also know that the answer
2 answers
asked by
Anna
555 views
I am having trouble figuring out this question
Jan observes a buoy bobbing up and down through a total amplitude of 8 feet.
7 answers
asked by
anna
2,403 views
Okay for this question I know I am supposed to use the law of sines. But how can i tell what side is what?
In right triangle ABC,
3 answers
asked by
anna
465 views
okay sorry last two questions! I promise!
The sun always illuminates half of the moon’s surface, except during a lunar eclipse.
3 answers
asked by
anna
1,437 views
How would I put this parabola in standard form: x^2-6x+8y-31
Here how I started it: x^2-6x+9=-8y+31 Im not sure what to do from
2 answers
asked by
Cinderella
1,086 views
Can someone please help me? I don't know how to solve for time under 23 units. When I try I think I get the answer for above 23
2 answers
asked by
Rose
520 views
Write the equation in standard form of the ellipse with foci (8, 0) and (-8, 0) if the minor axis has y-intercepts of 2 and -2.
i
3 answers
asked by
Sara
619 views
Write the equation of the hyperbola whose center is at the origin and has a vertical transverse axis. The equations of the
1 answer
asked by
Sara
940 views
Identify the graph of the equation. What is the angle of rotation for the equation?
y^2+8x=0 is parabola 90 degrees correct? also
3 answers
asked by
Sara
1,501 views
How would you simplify this polar equation to r=?
2=rcos(theta-20) Would i divide the 2 by both sides?
7 answers
asked by
Sara
353 views
What is the upper and lower bound of
sin x+2
4 answers
asked by
Max
1,551 views
use completing the square to describe the graph of each function.
How do you complete the square with this equations. please show
2 answers
asked by
Amy
659 views
Find (-1+i)^1/3 list steps
3 answers
asked by
95
367 views
Determine the x-intercepts of the polynomial function y=-6(x+7)^4 + 5. Round to two decimal places, if necessary.
y=-6(x+7)^4 + 5
1 answer
asked by
Anonymous
420 views
Assume that points A(5, 10, 1), B(6, 3, 6), and C(12, 1, 4) are on a plane.
Find vector AB and vector AC.
1 answer
asked by
Grace
288 views
Assume that points A(5, 10, 1), B(6, 3, 6), and C(12, 1, 4) are on a plane.
Find vector AB and vector AC.
3 answers
asked by
Grace
314 views
At the point were a line intersects a plane [with the equation (24x+32y+40z=480) and three points of A(5, 10, 1), B(6, 3, 6),
2 answers
asked by
Grace
597 views
1) expand (1+3x)^4 using the Binomial Theorem.
2) Use Pascal's Triangle to expand(x+2)^5 3)What is the third term of (a+b)^11?
2 answers
asked by
95
518 views
find the following limit
lim n->infinity 2+5n+4n^4/2n show steps please
4 answers
asked by
95
306 views
Suppose vector a is 3 units long, the magnitude of vector b is 1 units and cos (θ) = -0.3, where θ is the angle between the
2 answers
asked by
Grace
481 views
If α, β, and γ are direction angles for a vector in three dimensions and cos α = 0.6 and cos β = 0.7, find cos γ
1 answer
asked by
Grace
393 views
By appropriate calculations, show that:
lim r(x)=5c^4 (x->c)
10 answers
asked by
Grace
325 views
A line in space has the vector equation shown here. Fill in the blanks to find the position vector to the fixed point on the
4 answers
asked by
Grace
631 views
Given the plane 3x+2y+5z=54 and the points P0(6, 8, 4)[on plane] and P1(13, 18, 5) [not on plane]
A. Find vector n, a vector
2 answers
asked by
Grace
465 views
Write a 3 x 4 pre-image matrix for a kite with the points (2,4) (4,5) (6,4) and (4,1)
1 answer
asked by
Grace
281 views
For this matrice,
[[0.9cos(-30), 0.9cos(60), 2] [0.9sin(30), 0.9sin(60), 4] [0, 0, 1]] What is the rotation (in degrees) and is
1 answer
asked by
Grace
340 views
The figure shows a 10 x 10 square centered at the origin. The darker-shaded square is the image of this square, dilated by a
4 answers
asked by
Grace
653 views
The figure shows the pre-image and first iteration for a set of transformations. If the iterations are carried on infinitely,
1 answer
asked by
Grace
415 views
A hyperbola has this Cartesian equation:
-((x-2)/5)^2 + ((y+1)/3)^2 = 1 A. Find direction in which it opens. Horizontal? B. Find
1 answer
asked by
Grace
408 views
An ellipse has this Cartesian equation:
((x-2)/5)^2 + ((y-4)/3)^2 = 1 Find the focal radius Find the eccentricity Write the
2 answers
asked by
Grace
514 views
(10 cis 200) (2 cis 50) = ?
Is it just 20cis(10000)?
2 answers
asked by
Anon
479 views
Given g(x) = (x + 5)(x2 - 6x + 13), find the one real zero of g(x):
I think it's -5 Find the two complex zeros of g(x):
3 answers
asked by
Anon
439 views
A restaurant uses a cable for the servers to slide orders down to the kitchen. The end where the servers place the order is 5
3 answers
asked by
ceci
525 views
if sine theta=.3416 and theta is in quadrant I what is cos theta/2? Using double angle identities.
2 answers
asked by
Brittany
957 views
Find a4 for the arithmetic series with s4=-36 and a1=9
1 answer
asked by
Wren
624 views
#1: f(x) = x^2-4x
find vrtex, axis ofsym, y-int, x-int if any, domain, range, where increasing and decreasing. I got.... vertex:
1 answer
asked by
Rebekah
371 views
# 1
a special window has the shape o a rectangle surmounted by an eqilatera tiangle. ifthe perimeter o the winow is 16 ft, what
3 answers
asked by
rebekah
2,886 views
how do I graph this function?
x^2-xy+2x-1=0
1 answer
asked by
Matt
238 views
#1. (3x^3-4x^2-3x+4)/(x^3-5x)
my answers: y-int: NONE x-int: 1, -1, and 4/3 x asymtope: x= 0 and +- square root of 5 y asym: y=3
1 answer
asked by
Rebekah
430 views
Rewrite cot(^2)xcosx/(cscx-1) as an expression that doesn't involve a fraction.
1 answer
asked by
Sophia
442 views
rewrite sinxtanx/(cosx+1) as an expression that doesn't involve a fraction.
2 answers
asked by
Sophia
514 views
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