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Pre Calculus
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The third term of a geometric series is 24 and the fourth term is 36. Determine the sum of the first 10 terms. Express your
4 answers
asked by
HanuMath25/11
5,099 views
Determine the coordinates of the point (xy) where the curves y=(12)x−5 and y=x2+2x−15 intersect in the third quadrant
5 answers
asked by
Jack
1,153 views
For a vector $\bold{v}$, let $\bold{r}$ be the reflection of $\bold{v}$ over the line
\[\bold{x} = t \begin{pmatrix} 2 \\ -1
4 answers
asked by
Bob
1,382 views
A travel agent is trying to schedule a client's trip from City A to City B . There are 3 direct flights,3 flights from A to a
4 answers
asked by
Anonymous
1,297 views
Find the exact value ofcos (u+v) given that sin u= 7/25 and cos v=−12/13. (Both u and v are in Quadrant II.)
5 answers
asked by
Jessica Maths
4,174 views
Determine the quadrant in which an angle, θ, lies if θ = 5.40 radians.
a. 4th quadrant b. 3rd quadrant c. 2nd quadrant d. 1st
5 answers
asked by
Jessica Maths
2,897 views
Identify the parametric equations that represent the same path as the following parametric equations.
x(t)=2cos2t y(t)=sin3t a.
4 answers
asked by
line
5,209 views
Perform the operation shown below and leave the result in trigonometric form.
[8(cos10° + i sin10°)] [5(cos 200° + i sin
4 answers
asked by
Jessica Maths
972 views
Let $\bold{w} = \begin{pmatrix} 2 \\ -1 \end{pmatrix}$. There exists a $2 \times 2$ matrix $\bold{P}$ such that
\[\text{proj}_{\b
4 answers
asked by
Bob
1,478 views
Find an expression equivalent to sec theta tan theta/ sin theta.
5 answers
asked by
Victoria
2,363 views
Find each product or quotient. Express the result in rectangular form.
2(cosπ/6+isinπ/6) X 4(cos2π/3 +i2π/3)
3 answers
asked by
Alexis
1,018 views
Let θ be an angle in quadrant IV such that cosθ = 4/9.
Find the exact values of csc θ and cot θ. I am just completely lost!
4 answers
asked by
Anonymous
2,411 views
Find the number of units that produces maximum revenue given by
R = 900x-0.1x^2, where R is the total revenue in dollars and x is
5 answers
asked by
Amy
5,062 views
Prove that 2/square root 3cosx-sinx=sec(pi/6-x)
4 answers
asked by
Nathan
2,275 views
A piece of cardboard measuring 13 inches by 11 inches is formed into an open-top box by cutting squares with
side length x from
4 answers
asked by
Joey
9,802 views
Identify the x-intercept of the function f(x) = 2 ln(x-3).
a. x=3 b. x=0 c. x=2 d. x=4 e. The function has no x-intercept
3 answers
asked by
Jessica Maths
809 views
Determine the quadrant in which an angle, θ, lies if θ = 5.40 radians.
a. 4th quadrant b. 3rd quadrant c. 2nd quadrant d. 1st
5 answers
asked by
Amelia
2,347 views
A flare is launched straight up with a velocity of 200 feet per second. The function h(t)= 200t−16t^2 models the height h(t)of
3 answers
asked by
Michelle
824 views
Find the magnitude and direction angle for the vector v=3 cos 123 degrees i + 3 sin 123 degrees j.
3 answers
asked by
ADOG
1,488 views
A 40-foot flagpole casts a 30-foot shadow. How do you Find o, the angle of elevation?
4 answers
asked by
Irene
2,246 views
What is the standard form of the hyperbola given the center (10 , -4) and Transverse of axis is vertical and 18 units long &
6 answers
asked by
keith
1,567 views
Formula: a = b = c
1 answer
asked by
Clarice
281 views
Formula: a = b = c
1 answer
asked by
Clarice
304 views
Find the roots of the function g(x)=x^3 +16x
a)0,4i, -4i b)0,-4,-4i c)0,4,4i d)0,4,-4 The equation can be rewritten x(x^2 + 16) =
1 answer
asked by
raven 31791
426 views
Find the Derivative of F(x)=4x2(the previous 2 is squared)-2x
3 answers
asked by
John
419 views
Can someone help me with this problem...I have no Idea how to do it.
Find the area between each curve and the x-axis for the
1 answer
asked by
Josh
457 views
please help me with this problem? I have the answer but I need to know how to do it.
Write the slope intercept form the equations
3 answers
asked by
Joseph
372 views
please help me with this problem? I don't know how ro do it. please show me step by step.
Write the slope intercept form the
4 answers
asked by
Joseph
480 views
how do you find additional points on a line with a slope of 1/2 and a given point of (7,-2)?
1 answer
asked by
Joseph
311 views
How do I find the domain in this problem? Is it that the denominator cannot equal zero still?
x^2-x/(x^2-x)+2
5 answers
asked by
Crystal
323 views
please explain the process of finding the complex zeros of f(x)=x^4+5x^2+4.
3 answers
asked by
Lia
281 views
Can someone help me solve this problem:
cos^2x + 5cosx - 2= 0 I am having trouble finding x
1 answer
asked by
Anonymous
422 views
Write an explicit formula...
3,4/3,1,6/7,7/9 Can someone help me out?
1 answer
asked by
MJ
324 views
Simplify 2(3-i^14)- (5-i^23)
3-i Simplify: (5-3i)^2 16+30i Simplify (3+2i) / (4-5i) (2/41)-(23/41)i is this right?
2 answers
asked by
James
493 views
find the real zeros of the polynomial:
P(x) = 24x^3 - 76x^2 + 2
3 answers
asked by
Shellie
591 views
The burial cloth of an Egyptian mummy is estimated to contain 56% of the carbon-14 it contained originally. How long ago was the
3 answers
asked by
Shellie
1,550 views
log(log10^10,000)
1 answer
asked by
Shellie
314 views
solving exponential equations with exponents on each side
5^x =4^(x+1) They don't have common bases and now I am lost I thought I
3 answers
asked by
Shellie
439 views
interest 7%; investment $2000, compounded monthly - how much after 10 years. I am very close on this one but must be missing an
2 answers
asked by
Shellie
470 views
Radium-221 has a half-life of 30 s. How long will it take for 95% of a sample to decay
4 answers
asked by
Shellie
2,741 views
Evaluate log b {square root of 10b}, given that log b 2 = 0.3562 and
log b 5 = 0.8271 (sorry I had no clue how to type this in
4 answers
asked by
Shellie
2,587 views
square root of 3x-4 = (x-4)^2-3
Normally, I either take the square root of both sides or I square both sides. Since there is a
3 answers
asked by
Ash
357 views
use a calculator to find approximate solutions of the equation. 8.06x^2+25.8726x-25.047256=0
2 answers
asked by
Carol
819 views
find all exact real solutions of the equation.
x^4-2x^2-24=0
3 answers
asked by
Carol
394 views
ok I appologize for my stupidity...
I'll answer your question... ok instructions to this problem In problems 77-88, use
2 answers
asked by
Dylan
613 views
Pre Calculus
why is sin(-20)/cos 380 equal to tan (-200)
3 answers
asked by
Pre Calculus
1,516 views
complete the identity:
sin^4 x-cos^4 x
1 answer
asked by
moi
354 views
The electricity in your house is alternating current because the current varies sinusoidally with time. The frequency of
1 answer
asked by
Kevin
939 views
Verify the following identity
2 tan x/1+tan^2 x = sin 2x
1 answer
asked by
Joe
401 views
Establish the following identity
Sin2x/1+cos2x=tanx
1 answer
asked by
Tyler
413 views
Establish the identity
tanx/2=cscx-cotx
2 answers
asked by
Peter
469 views
Establish the identity
(cosx/2-sinx/2)^2=1-sin x
2 answers
asked by
Peter
918 views
Establish the following identity
sin 2x/sinx - cos2x/cosx = secx
2 answers
asked by
Tyler
1,195 views
Establish the following identity
tan(x+pi/4)=1+tanx/1-tanx
2 answers
asked by
Tyler
492 views
The strength of a cable is proportional to the square of its diameter. If a 2-cm cable will support 800kg, how much will a 3-cm
2 answers
asked by
Jack
1,051 views
As x increases from p/4 to 3p/2, the value of sin(x) :
A.increases throughout the interval B.decreases at first, then increases
2 answers
asked by
Jack
1,062 views
Given Triange ABC with
an area of 100.2 a = 32.5 c = 29.2 Find angle B, expressed in degrees.
3 answers
asked by
Brent
364 views
Why can we use either common or natural
logarithms to re-express data that fit a power regression model? Couldn't really figure
2 answers
asked by
Laura
474 views
The diameter of a ferris wheel is 250 feet and θ is the central angle formed as Dave travels around the wheel. Dave starts his
5 answers
asked by
Roberta
941 views
Verify the identity:
cos x + sin x tan x = sec x.
1 answer
asked by
Kim
388 views
Find the measure of the central angle, in radians, given the area of the sector as
22.6 cm2 and a radius equal to 3.7 cm. Round
2 answers
asked by
Kim
1,137 views
sec x = -2 , π ≤ x ≤ 3π
Use a calculator to solve for x in the given interval 9)sinθ=0.1473, 0°≤θ≤90° A) -8.47° B)
1 answer
asked by
Able
394 views
lnX + ln2 = 3
answer is 10.043 but I don't know how to get to this answer. Thanks for the help!!! :)
1 answer
asked by
Linda
369 views
use the sum of difference formula what is sin(pi/2-5pi/3)?
1 answer
asked by
Josh
364 views
If $22,550 is invested at 2.95% over 10 years, describe the amount of the investment if interest is compounded
a. Every 2 months
1 answer
asked by
Josh
409 views
Find the rate of change and the equation for the following: f(4)=1 and f(8)=7
2 answers
asked by
LaTesha
808 views
FACTOR COMPLETELY
1) x^8-y^8
4 answers
asked by
Libby
423 views
factor completely
1. x^3-9x^2 2. 36x^6-49x^4
2 answers
asked by
REMI
496 views
Factor Completely
a. 3x^8-3x^6 b. 20a^2b^2x^2-45a^2b^2y^2
1 answer
asked by
Scott
393 views
Applications of trigonometric functions
Solve the missing parts of the triangle satisfying a=125 b=150 alpha=55 degrees There are
3 answers
asked by
Josh
504 views
Logarithms
Solve the equation for x 1-ln(3x+2)=0
1 answer
asked by
Josh
309 views
Exponential Growth and Decay
Find the half-life of a radioactive substance that decays by 5% in 9 years.
2 answers
asked by
Josh
859 views
Inverse functions
find the value If f(x)=1/x, find f^-1 (2)
1 answer
asked by
Josh
283 views
Exponential and log functions
What initial investment at 8.5% compounded continuously for 7 years will accumulate to 50,000?
2 answers
asked by
Josh
477 views
Inverse functions
what is the inverse function of f(x)=1/square root of x +1? and f(x)=1-x^2, x<0?
1 answer
asked by
Josh
459 views
Exponential growth and decay
find the half life of a radioactive substance if 220 grams of the substance decays to 200 grams in 4
3 answers
asked by
Josh
1,104 views
using the factor theorem to show that x-c is a factor of P(X) for the given values of c, and factor
1. P(x)=x3-5x^2+8x-4; c=1
3 answers
asked by
Josh
1,485 views
Find a third degree polynomial P(x) that has zeros at x=-1, x=1, x=2 and whose x-term has coefficient 3?
1 answer
asked by
Josh
398 views
1. Find all rational zeros of the polynomial. Then determine any irrational zeros, and factor the polynomial completely.
2 answers
asked by
Josh
826 views
find all solutions of the equation
1. x^3+27=0 2. x^3-8=0
1 answer
asked by
Josh
329 views
Newton's law of cooling
T(t)= Tm + (To-Tm)e^-kt, k >0\ Evaluate T(0). Simplify and explain the result I'm very confused on how to
2 answers
asked by
Josh
634 views
Use one of the identities
cos(t + 2ðk) = cos t or sin(t + 2ðk) = sin t to evaluate each expression. (Enter your answers in
2 answers
asked by
Stephanie823
916 views
Use one of the identities
cos(t + 2ðk) = cos t or sin(t + 2ðk) = sin t to evaluate each expression. (Enter your answers in
2 answers
asked by
Stephanie823
864 views
Determine all discontinuities that exist on the graph of y = f(x) shown below. Please show your reasoning by justifying your
2 answers
asked by
Nanda
507 views
1. A rectangular box has a square base, four sides, but no top. It has a volume of 20 cubic feet.
Let A be the surface area of
2 answers
asked by
Mario Trujillo
525 views
Write the Rectangular Form of the Polar Equation: r=12
2 answers
asked by
Alex Rodriguez
572 views
(secx)/(tanx)+(cscx)/(cotx)=secx+cscx
Please help me verify this trigonometric identity.
2 answers
asked by
Lainey
518 views
(cotx)(cscx)+secx=(csc^2x)(secx)
Please help to verify this trigonometric identity.
5 answers
asked by
Marie
1,746 views
(a) Determine the number of terms, n, if 3+3^2+3^3+..........+3^n= 9840.
(b) Three numbers, a, b and c form a geometric series so
4 answers
asked by
HanuMath25/11
1,243 views
When doctors prescribe medicine at equally spaced time intervals, they are aware that the body metabolizes the drug gradually.
2 answers
asked by
HanuMath25/11
767 views
For a given right triangle, side a = 76.4 feet and side b = 39.3 feet. What is the measure of angle A to the nearest degree?
1 answer
asked by
Kelsey
1,240 views
find an equation in standard form for the ellipse if the major axis endpoints are (-5,2) and (3,2); the minor axis length is 6.
2 answers
asked by
Trista
520 views
mx3-nx2+5x-1 is divided by x-2 the remainder is -39. When divided by x-1 the remainder is 3. What are the values of m and n.
3 answers
asked by
Ellen
1,155 views
There are ten equal parts to a circular track for 2 toy cars and the distance from the inner to the outer is 3.4 inches. What is
1 answer
asked by
Richard
373 views
A bank teller is counting the total amount of money in a cash register at the end of the day. There is a total of $2600 in
2 answers
asked by
Jona
610 views
A contractor is to fence off a rectangular field along a straight river, the side along the river requiring no fence.
What is the
3 answers
asked by
Lauren
839 views
I keep trying to solve this by factring but I can't seem to get! It's so frustrating!
The problem is 1+tan2x=0 This is how I
2 answers
asked by
Jen
590 views
Having trouble verifying this identity...
cscxtanx + secx= 2cosx This is what I've been trying (1/sinx)(sinx/cosx) + secx = 2cosx
3 answers
asked by
Alex
547 views
If you are riding on a Ferris wheel that is 60 feet tall and it takes 5 minutes to make a one revolution, what is your linear
3 answers
asked by
Deontre
822 views
If you are riding on a Ferris wheel that is 60 feet tall and it takes 5 minutes to make a one revolution, what is your linear
4 answers
asked by
Deontre
2,184 views
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