Pre Calculus
21,812 results, page 40

Pre Algebra
I have to create two dice (each on has six sides) they have to be numbered in such a way that the probability of rolling the numbers 112 are the same? I know this is a function but I am having trouble. 
HELP PRECALC ASAP
An experiment consists of selecting a number at random between 0 and 9 inclusive, and a letter of the English alphabet. What is the size of the sample space of this experiment? A) 35 B) 36 C) 52 D) 234 E) 260 
Pre calc
A farmer with 2000 meters of fencing wants to enclose a rectangular field that borders a barn. If the farner does not fence the side along the barn, what is the largest area that can be enclosed? 
Math 142 (PreCal) (Circles)
A wheel has a radius of 10 inches is rotating with an angular velocity of 2.5 revolutions per second. Find the distance the wheel travels in 15 seconds. 
Pre algebra
* There are 1,000 of an endangered species of bird left. If the population drops by 50% each year, how many years until there are only 1% of the current total left? ( round to a whole number) 
PreCal/Trigonometry
Triangle ABC is given where angle A=64 degrees, a=16 in., and the height, h, is 15.3 in. How many distinct triangles can be made with the given measurements? Please explain your answer to your best ability 
PreCal
Assuming that you invest $12,000 in Japan, how long (to the nearest year) must you wait before your investment is worth $17,000 if the interest is compounded annually? The rate is 0.5% 
PreAlgebra
Find the perimeter ( I am not sure of the step) Can someone help me PLease If a rectangle whose dimensions ar e8 1/2 in.x 3 3/4 in. am I to multiply because this is what i got 0.020564475m^2 please get me going in the right direction . Thank you in advance for the help. 
pre cal
find the standard form of the equation of the ellipse with center (0,0) and foci at (+ 4square root 3, 0) and verticies (+8,0) x^2/a^2 + =y^2/b^2 = 1 a = 8 b = sqrt(8^2  (4sqrt3)^2) ..= sqrt(64  48) = sqrt(16) = 4 Thus, x^2/64 + y^2/16 = 1 
Pre Calc 12
Four consecutive integers have a product of 360 Find the integers by writing a plynomial equation that represents the integers and then solving algebraically. 
pre calculos
A statement Sn about the positive integers is given. Write statements Sk and Sk+1, simplifying Sk+1 completely. Show your work. Sn: 1 ∙ 2 + 2 ∙ 3 + 3 ∙ 4 + . . . + n(n + 1) = [n(n + 1)(n + 2)]/3 ________________________________________ 
prealg
Using 1 inch = 15 feet as the scale factor, what are the blueprint dimensions of a room in a model house that is actually 30 feet × 45 feet? a. 2 in x 3 in b. 3 in x 2 in c. 2 in x 2 in d. 3 in x 2 in I got b. Is this correct? Thank you! 
Calculus
Reflecting the graph calculus problem f(x) = 5^x? reflecting the graph about the xaxis and the yaxis: y=___________ reflecting the graph about the line y = 3. y=__________ 
Multivariable calculus
Hello, I have the next exercise about chain rule in multivariable calculus: I have to show that the differential equation: y(dz/dx)x(dz/dy) = (yx)z can be change to the equation: (dw/dv) = 0 using the new variables: u= (x^2)+(y^2) v = (1/x)+(1/y) w = ln(z)(x+y) For that I ... 
Governemtn
Which group would be more likely to approve of a preemptive strike to rid the world of a terrorist friendly country (government))? liberalists or conservatists? I think it's conservatists it is You're right. 
pre calc
suppose you have 102m of fencing to make two side by side rectangles, making one large rectangle when put together. What is the maxium area that you can enclose? 
pre ap chem
heating an ore of antimony and iron II sulfide. Sb2S3+3Fe>2Sb+3FeS when 15g Sb2S3 reacts with an excess of Fe, 9.84g Sb is produced. what is the pecent yeild of this reaction? 
precal/trig
PlEASE help me with this!! I need it as soon as possible....... cos(x(pi/4))+sin(x(pi/4))=1 Find the answer from 0 to 2pi. When I slove this, I got cosx+sinx=(1/ square root of 2). then I don't know what to do the rest. Please help me. 
PreCal
Find the greatest integral upper bound of the zeros for the following function. f(x) = 4x^3  2x^2  12x + 1 Find the real zero(s) to the nearest tenth. f(x) = 2x^3 + x^2  1 [I believe the numbers should be around 1 and 0 and 0 and 1.] 
PreCal
Find all the solutions of the equation in the interval (0,2pip) sin(x + pi/6)  sin(x pi/6) = 1/2 I am only stuck on the last part. I have 2sinx(sqrt3/2) = 1/2 Does the 2 cancel out with the sqrt 3/2. I am not sure what to do. 
pre cal
a pendulum length 12.3 inches swings 2 degrees and 57 minutes to each side of its vertical position. To the nearest hundredth of an inch, what is the lenght of the arc through which the end of the pendumlum swings? 
History
I know that I posted this quetsion earlier How did the Spanish change the way that the PreColombian people lived?we don't have a book. Is there any way you can help me start off someway so I know what to search or get a general idea. Thank you. 
PreCalc
A force of 45 pounds is exerted along a rope attached to a crate at an angle of 30 degrees above the horizontal. The crate is moved 22 feet. How much work has been accomplished? 
Pre Algebra
You deposit $3350 into a savings account that earns 5% interest compounded annually. Find the balance of the account after 2 years. Round your answer to the nearest cent 
precalc HELP PLEASE
solve using identities for all angles (dont use multiple angle method)show work please cuz i am so confused. 2sin2x3sinx=0 
Precalc
Heres the equation: (x^2)(4y^2)(4x)+(24y)(36)=0 Your supposed to find the coordinates of the center, foci, and vertices, and the equations of the asymptotes of its graph. So first you complete the square right? (x^2 4x+4)4(y^2 +6y+9)=36+4+36 [((x+2)^2)/76] [(y+3)^2)/19]=... 
PreAlgebra
If a ping pong ball falls from the top of a building that is 168 feet high, how many seconds will it take the ball to hit the ground? Remember, the formula for distance is d = 16t^2. 1 3.2 10.5 16 
pre calc
A coin is tossed upward from a balcolny 370 ft high with an initial velocity of 16 ft/sec. during what interval of time? will the coin be at a height of atleast 50 ft (h= 16t^2 +vot + h0) is the answer 0>= t<+5 
Prealgebra
Dwayne walks a total of 960 feet around 3 sides of a square city block. Which equation and solution show a correct way to find the perimeter, P, of the block? 
PRECALC
If you put $2,000 in a savings account that pays 6% interest compounded continuously, how much money will you have in your account in 4 years? Assume you make no additional deposits or withdrawals 
Math (PreCal)
The number of Sasquatch living in northern Ecotopia t years after 2016 is given by the formula s(t)=3(1.12)^t . Determine how long it will take for the Sasquatch population to double. Do this algebraically? 
Pre Calc
Use a graphing utility to graph the function and approximate (to two decimal places) any relative minima or maxima. (If an answer does not exist, enter DNE.) f(x) = −x2 + 9x − 8 
Pre calc
Please help me proof the identity. This isn't even math to me, I can not understand it so please show all work. God bless A)1cos2x/sin2x=tanx B) sin4x/sinx=4cosxcos2x 
Language Arts
1.Which of the following will you most likely find in a historical novel such as Johnny Tremain? A. A setting in preRevolutionary town such as Boston.*** B. Mythical chractars such as Johnny Appleseed. C. Opinions of modernday historians and political writers. D. Directions ... 
PreCalculus
The logistic growth model p(t)=0.90/1+3.5e^0.339t relates the proportion of new personal computers sold @ Best Buy that have Intel's latest coprecessor t months after it has been introduced. a) what proportion of new personal computers sold @ Best Buy will have Intel's latest... 
tefl course
Structure an ESA (boomerang pattern) based lesson for a preintermediate class, teaching language commonly used for shopping, so that students can ask for, find the price for and purchase everyday food and clothing items: 
PreCal
Four couples have reserved seats in a row for a concert. How many ways can they be seated if the two members of each couple wish to sit together? How do I go about doing this problem? I'm not sure what/how I should multiply this out... 
world history
The popularity of an individual Hindu deity was largely a reflection of a) its ranking by the Hundred Schools of Thought. b) the approval it received from Siddhartha Gautama. c) its preAryan origin. d) the size of its pyramids. I think it's A but I'm not positive. 
PreAp Chemistry
This is due online in 20 minutes and I've been working on it for 3 hours. Im lost on what to do with this question. Please help How much H2 gas at STP can be produced by the reaction 2Na(s) + 2H2O(§¤) > H2(g) + 2NaOH(aq) of 3.80 g of Na and excess water? Answer in units ... 
PRECALC
I am having touble understanding: how to factor the polynomial : 8x^4 6x^3 57x^2 6x65, into its linear factors, given that i is a zero. I tried to use synthetic division, but i keep getting a remainder... please help me understand how to solve it. 
Calculus
1. Use the Mean Value Theorem to find an xvalue where the instantaneous slope=average slope over the given interval: f(x)=(9x^2)^(1/2) on [3,2] I have done three chapters of Calculus already and I never have had to check for extraneous roots. So, my question is, when ... 
PreAlgebra
The sum of their ages. is 97. The difference of their ages is 19. Find their ages. 
pre calc
from a distance of 50 feet from the base building, the angle of elevation to the top of the building is 68 degrees. estimate the height of the building to the nearest foot. a.124 b.20 c.19 d.46 i think its d? 
pre algebra
A cylinder has a circumference of 16pi inches and its height is half the radius of the cylinder? What is the total surface area of the cylinder? Give answer in terms of pi. do not know how to do this....please help 
pre algebra
hi my answers ten thanks ms.sue and other touters 9 An equilateral triangle has a perimeter of 48 centimeters. If the triangle is dilated by a factor of 0.75, what is the length of each side of the new triangle? 3 10***** 12 16 
prestatistics
Days Stayed Frequency 3 60 4 51 5 14 6 22 7 8 What is the probability a patient stayed at least 5 days? (Round to the nearest thousandth) 
PreAlgebra
Also need help with this one Approximate the square root to the nearest hundreth: square root of 1100 Thanks! MC 
PreCal
Find (a) f X g , (b) g X f, and (c) f X f f(x) = 3sqrt x1 g(x) = x^3 + 1 For the f(x) the 3 is little above the sqrt sign. my answers were: (a) = 3sqrt x^4 1 (b) = x^4 1 (c) = 6sqrt x+1 These answers are wrong but I do not know how to do this 
PreCal
Find the vector v with the given magnitude and the same direction as u. Magnitude: v=3 direction: u=(4,4) I am not sure what to do here or how to start. 
prealgebra
Angel M and Angel N are supplementary angles. If Angel M is nine more than one half Angel N, what are the measures of the angels? 
PreCalc Help!!!
Simplify the expression by using a DoubleAngle Formula or a HalfAngle Formula. Sqrt(1cos50/2) 
PreCalc Help!!!!!!!!
Evaluate the expression under the given conditions. sin (A+B); tan A= 12/5, A in quadrant 3, sin B= 3sqrt(10)/10, B in quadrant 4. 
precalc helpppp
Simplify the expression by using a DoubleAngle Formula or a HalfAngle Formula. ã((1cos50)/2) 
pre algebra check
There are 30 students auditioning for new openings in a chorus. How many ways can you choose 4 students to be in the chorus? 30*29*28*27=657720 
math precalc
find an expression for sin (5 theta) as a fifth degree polynomial in the variable sin(theta) ? 
geometry
The scale factor is 5/4. Find the area of the preimage if the area of the image is 150 in2.Show your work. 
Prealgebra
Sara is 24 years younger than Joe. Six years ago she was half as old as he was. How old is he now? 
PreAlgebra
The ratio of men to women at a lecture is 2 to 5. A total of 63 people are at the lecture. How many are men? Explain how you found your answer, 
pre ap math
a playground is 100ft by 150 ft. you want to make a scale drawing of the playground on a 8.5 by 11 paper what scale could you use? please help 
pre algebra
three of every seven sales transaction are on credit cards, what percent of the transactions are not on credit cards 
prealgebra
a 50pound bag of grass seed sells for 292.50. find the unit price of grass seed 
PreCalc
Find all solutions of the equation in the interval [0, 2pi). Show all work. sin(x+(pi/6))sin(x((pi/6))=1/2 
Pre algebra
The perimeter of a rectangle is 10 m. Twice the width is equal to one half the length. Find the length and the width. 
PreAlgebra
The width of a picture is 20 cm. Using a color copier, you reduce the width of the picture to 5 cm. What is the scale factor of the dilation? A)5 B)1/5 C)4 D)1/4***** 
Pre calc
sin(θ − ϕ); tan(θ) = 5/12 , θ in Quadrant III, sin(ϕ) = − square root 10 over 10 ϕ in Quadrant IV Please help last one 
Economics
Suppose that a family's tax liability equaled its income multiplied by onehalf minus $10,000. Under this system, some families would pay taxes to the government, and some families would receive money from the government through a "negative income tax." a. Consider families ... 
5 PreCalculus Questions
1. What is the value of x in the right triangle below? If needed, round your answer to two decimal places. 32 angle, 15 inches, find the x in base… 2. A 10foot ladder is leaning up against the side of a building so that the top of the ladder reaches the top of the building... 
precalc
What is the trigonometric function for cos(270)? a)1 b)1 c)0 d)undefined Put cos(270 degrees) in the google search engine. 
prealgebra help
Determine which two equations represent perpendicular lines. (a) y = 3/10x 3 (b) y=  10/3x 3 (c) y = 1/5x + 3/10 (d) y = 1/5x – 3/10 Equations (a) and (b) are perpendicular t one another, because the product of the slopes is 1. 
Pre cal
I am learning interval notation. One of my friends said that besides from '('and '[',there is '{'. Is it true? Is there any " { or }"in interval notation? If yes, what is it used for? Thank you so much :) 
Math: PreCalc
A right triangle has hypotenuse 5 inches long. Its area is 4 square inches. How long are the other sides? 
pre calc
find all local maxima and minima (the yvalues) and the vales where they occur g(x) x absolute value 2x+5 absolute value 
pre calc
A ramp leading to a freeway overpass is 470 feet long and rises 32 feet. What is the angle of inclination of the ramp? 
PreCal(Please help)
Find (a) f X g , (b) g X f, and (c) f X f f(x) = 3sqrt x1 g(x) = x^3 + 1 For the f(x) the 3 is little above the sqrt sign. my answers were: (a) = 3sqrt x^4 1 (b) = x^4 1 (c) = 6sqrt x+1 These answers are wrong but I do not know how to do this. 
pre algebra
the measures of the angles of (triangle) RST are in the ratio 2:3:5. find the measures of each, and classify the triangle as acute, right, obtuse. 
PreAlgebra
Can anyone show me step by step how to solve this problem? 26cm/s = m/min convert this problem using dimensional analysis.kj 
precal/ algebra
how is the transformation y=f(x+3)^2+2 affected. f(x) has the vector of (2, 6) so it would move left 3 units and up 2 so the new vector would be (1,4)... is that correct 
PreCalc
A hall 200 feet in length is to be designed as an ellipse if the foci are 35 feet from the center. How high will the ceiling be from the center? 
PreAlgebra Math
Emma bought 6 new books for her collection. This increased her collection by 12%. How many books did she have before her purchases? 
Precal
Find the length of side b to the nearest whole number if side a = 105, angle A = 65 degrees, and angle B = 37 degree. 
PreCal.
find all the zeros of the following polynomial. Write the polynomial in fraction form. Show all the work. f(x)= x^4+3x^240 
social studies
2013 social studies fair project: A turn in history Walt Disney PreDraft Please 
pre algebra
Check whether (4, 12) is a solution of the system of equations. y = 6x + 12 2x  y = 4 When the graphs of two equations are parallel, there are infinitely many solutions. y = x + 4 y = 3x solution: ( , ) 
Pre Chem
A gas occupies a volume of exactly 500 mL at STP. What volume would it occupy at exactly 70°C and 400 mm of pressure? 
Pre ALGEBRA
what are the next three terms in the sequence 6, 5, 16, 27? A)38,49,60 B)37,47,57 C)36,45,54 D)36,46,57 i think its a Am i right Somebody help me please DAMON,MS.SUE, SOMEBODY PLEASE HELP ME 
Pre Algebra
My math question showed me a scientific notation on the calculator which represents (6E7). My answer to this question is (6,000,000) am I correct. 
Algebra
I need the answers to pre algebra pizzazz pg 50 How did the angel lose his job I have the riddle I need the work!! Plz help me!! 
Pre calc functions
Determine whether the function g(x)=x^47x^2 is an even, odd, or neither function. Also determine the symmetry of its graph 
Geometry
A photographer enlarged a picture. If the width of the image is 5 inches and the width of the preimage was x, what is the scale factor for the dilation in terms of x? 
Vocabulary
In order to change the meaning of the word teach from "to give instruction" to "to give instruction with" you would add the prefix: A. ed B. pre C. er D. co D? 
Maths & numeracy
Loose almonds in a supermarket cost $6.48 for 250gm, or you can buy 375 gm of prepackaged almonds for $10.65. Which is the better buy? 
prealgerabra
If dexters room is 10 wide and 12'6" long and in his drawing is 4 wide is it true or false if I doulbe the quantity I doulbe the other? 
PreAlgebra
A sphere and a right cylinder have the same radius and volume. the cylinder has a height of 3 inches find the radius. 
Pre calc
Find an equation for the ellipse described center (0,0); major axis horizontal with length 18; length of minor axis is 4 
Calc or Pre calc
I am having trouble doing this problem. I know how to do indefinate integrals, but I don't know how to do definate integrals. Can you show me how to do this. Evaluate 5 (x^32x)dx 2 
PreAlgebra(please check)
Please check these simplified expressions(my answer is after the ;) 4(2k6)8(33k); 16k(48) 9+(2k)+(4)6k; 8k+5 x+4x(8x)9+2x+1; 13x+(8) 5(3x+6)+8x; 7x+30 8+6x+48x; 2x+12 5(m3)+4m10; 9m+5 
prealgebra
how do i identify the slope snd yintercept of the graph of each equation. Then graph the equation? plz help asap! 
PreCal
Find an equation of the tangent line to the parabola at the given point, and find the xintercept of the line. 17) x^2=2y , (3,9/2) 18) y=2x^2 , (1,2) 
History
How did people differ before the industrialization and after pre World War I to after the end of the war? 
Math (Algebra/PreAlgebra)
What is the xintercept of the line with equation 2y + 3x = 24? What is the xintercept and how do I find it? I have to show work. Thank you!