88,703 results, page 20

1. Pre-calculus

Use the remainder theorem to find which of the following is not a factor of x3 + 12x2 + 47x + 60 the answer is x-5 but idk why
2. calculus

Find all relative extrema of the function. (Enter NONE in any unused answer blanks.) f(x) = x4 – 8x3
3. calculus

solve the following exponential equation 9^x=6 I get In6/In9 what is the answer approximated three decimal places?
4. Pre-Calculus

Simplifying Complex Fractions [(x+3)/12] / [(4x-5)/15] [(x+3)/12] x [15/(4x-5)] (x+3)5/4(3x-5) (5x+15/12x-20)<-- final answer Did I do this right. If not could you please explain how to do it correctly

Find all solutions of the equation tan^5 x - 9tan x =0. The answer is Ak\pi where k is any integer, the constant A=???
6. calculus help

What constant acceleration is required to increase the speed of a car from 22 mi/h to 50 mi/h in 3 s? (Round your answer to two decimal places.)
7. Calculus

find area of the region bounded by the curves y=x^2-1 and y=cos(x). give your answer correct to 2 decimal places.
8. Calculus

How do you integrate 2x^5 • e^x^2 ? I would say that this cannot be evaluated because the answer is more complicated than the original problem. Am I correct? Or is it doable?
9. math/Calculus

If h(x) = csc(x), find the inverse h^(-1)(x). express answer in terms of sin^(-1), cos^(-1) or tan^(-1) Don't know where to start -
10. Calculus

The function f is given by f(x)=3x^2+1. What is the average value of f over the closed interval [1,3]? The answer I get is 12, but the book says it's 14. I don't understand why.
11. calculus

How would you use series to evaluate the lim(x->0) of (x-arctanx)/x^3? I'm getting stuck, and the answer says it's 1/3 but I don't know how they got there.
12. Calculus

For a cylinder with a surface area of 20 20, what is the maximum volume that it can have? Round your answer to the nearest 4 decimal places.
13. Calculus II

Find the derivative of 5^(x^3+x) I know the answer, it's: 5^(x^3+x)*ln(5)*(3x^2+ 1) I just need some help on how to derive that. What rule is at work here? where did the ln come from?
14. calculus

A 13 ft ladder is leaning against a house when its base begins to slide away. By the time the base is 3 ft from the house, the base is moving at the rate of 5 ft/sec. Answer the following: At what speed is the top of the ladder sliding down the wall at that time? Answer = ft/...
15. precalculus

can you check my answers? Find Pk + 1 if Pk = 7 + 13 + 19 + ...+[6(k - 1)+1] + (6k + 1) 7 + 13 + 19 + …+[6(k - 1) + 1] + (6k + 1) + [6(k + 1) + 1] 8 + 14 + 20 + …+[7(k - 1) + 1] + (7k + 1) 7 + 13 + 19 + …+(6k + 1) 7 + 13 + 19 + ...+[6(k - 1) + 1] + (6k7 +1) + (6k + 2) ...
16. statistics

Assume heights and weights are normally distributed with the given means and standard deviations from the table below. Strata Mean Standard Deviation Mean Standard Deviation Height Height Weight Weight (inches) (inches) (pounds) (pounds) U.S. Men 69.3 2.8 191 28 U.S. Women 64....
17. calculus

Find the arc length of the graph of y = x from x = 0 to x = 3 using calculus.
18. calculus

I need help with this calculus problem. H(S)=S/(1+S) If F 1/2, -1/2 & (a+1)? I can't figure out what this mean /?
19. calculus

Why do we end up with f(x) instead of f(t) on the second fundamental theorem of calculus?
20. calculus

Use the Fundamental Theorem of Calculus to find G'(x) if: /x² G(x)= / cos t dt / 1
21. Calculus; Product Rule

Find the value of dy/dx for the given value of x. a) y = (1 - 2x)(1 + 2x), x = 1/2 y' = 2(1 + 2x) + 2(1 - 2x) y' = 2 + 4x + 2 - 4x y' = 4 How do I find the derivative at x = 1/2 if there is no x variable to substitute the x value with? According to my textbook, the answer is -...

37. Math - please double check me

There are 42 accounting classes with 31 students in each class. Estimate the total number of students in the accounting classes. a. 1200 b. 900 c. 1600 d. 1500 answer: c One kilometer is equal to 1000 meters. What fractional part of a kilometer is 500 meters? Simply your ...
38. vocab (english)

i have improving vocabulary skills 4th edition book and i need sentence check 2 answers and final check
39. Calculus 1

Use the fundamental theorem of calculus to find the area bounded by f(x)=3 square root of x+2x and the x-axis between x-=0 and x=1
40. Calculus AP need help!

Use Part 1 of the Fundamental Theorem of Calculus to find the derivative of the function. If f(x)= ∫(4,x^3)√(t^2+10) dt then f '(x).
41. Pre-Algebra

Can U Just Check My Answer Please! Thank You Guys :D Complete the sentence below. Scatter plots are used to look for a pattern of association, or trend, between ____________ A) one set of values. B) two sets of values. C) three sets of values. D) four sets of values. My Answer: B
42. Pre-Algebra

Can U Just Check My Answer Please! Thank You Guys :D Complete the sentence below. Scatter plots are used to look for a pattern of association, or trend, between ____________ A) one set of values. B) two sets of values. C) three sets of values. D) four sets of values. My Answer: B

Please check- sqrt of 2x + 15 = x Answers: -5.3 -3.5 -3 5 I think according to my calculations it would be 5, correct? sqrt root of 7-x = 3-solve for x Answers: -2 2 4 -4 My choice would be 2 Is that correct- I squared both sides and came out with 7-x = 9 and then x = 2 Thank ...
44. French

Could you check these thanks Directions: Complete each sentence with the correct form of the verb in parentheses. 1. Le matin, tout le monde veut la salle de bains. Moi, je -------- à sept heures. (se réveiller) Answer: me réveille 2. Mon frère -------- à sept heures ...
45. Math - Solving equation (check )

7 = (210+88t)/(2(sqrt(210t+44t^2))) Is t= 1.0479....? I got the denominator multiplied by 7 and squared both sides to eliminate the sqrt and then simplified, used the quadratic formula to find the values but since the questions is about squirrels growth it can not be a ...

66. health

In which condition is the patient most likely to hemorrage? a.thormbocytopenia b.polycythemia c.thalassemia d.erythroblastosis fetalis (c) could you please check my answer?
67. chemistry

At what temperature (C) will a gas sample occupy 6.1 L if it originally occupies 17.8 L at 27.1C? T1V1=T2V2 T1(6.1)=(17.8)(300.25) T1=876? Please check my answer
68. chemistry

At what temperature (C) will a gas sample occupy 6.1 L if it originally occupies 17.8 L at 27.1C? T1V1=T2V2 T1(6.1)=(17.8)(300.25) T1=876? Please check my answer

magnesium hydroxide + hydrobromic acid --> is the formula for that Mg(OH)2(s) + HBr(aq) ->H2O(l) +BrOH(s) and are the physical states correct??

I am not sure if I did it correct, can you please check this answer for me, Ms.Sue? :) Writing equations in point-slope form: m:3, p:(-1, -2) (y-y1) = m(x-x1) y-(-2)=3(x-(-1)) y+2=3x+3 y+2-2=3x+3-2 y=3x+1
71. office finances

which of the following would require a cash receipt a.credit memo b.purchase order c.check d.refund my answer is b
72. teachers aide

Resources for educating young children with diverse abilities part-3 Please check my answer?This is my last exam. 1--c 2--b 3--c 4--c 5--a 6--d 7--b(not sure) 8--d 9--b 10-c 11-b 12-a 13-d 14-c 15-d 16-a 17-c 18-d 19-c 20-a
73. check my science hw please.

24. can provide an economic benefit to A. drug companies B. tourists C.hikers D.endangered species I got A for my answer.
74. Maths

Check my answer please? Not sure if I did this right. Let y = f(x) be a cubic polynomial with leading coefficient a = 2 and f(-2) = f(1) = f(2) = 0. find the factored form of f. I got: f(x) = 2(x + 2)(x - 1)(x - 2)
75. Edu tech

Can you please check this Probability can be used to determine the likelihood of specific ________. A:games B:occurrences C:questions D:opportunites D is my answer
76. Language arts

most unintentional poisoning occur in children under A.10 B.2 C.5 D.6 months My best answer is b can you check please @Ms.Sue
77. Math

Please check my answer~ Find the distance between points C (4,12) and D (-2,5) to th3 nearest tenth. d=sqrt(-2,4)^2+(5-12)^2 d=sqrt36+49 d=sqrt85 d=9.2
78. ss

Can someone check this answer? Haiti shares an island with which country???? A-el Salvador B-The diminocon republic C-Cuba D-The Bahamas I think it is b or c pls help :)
79. S.S

Many Midwestern cities began as centers of _________ and processing. A. farming B. automobile manufacturing C. transportation ~~~ D. recessions Plz check my answer
80. Chemistry

Can someone check my answers for me thank you. This is my 3rd time posting this one up...maybe its just not going through bc I don't see it on the current ?s. 4NH3 + 7O2 --> 4NO2 + 6H2O 1)How many grams of oxygen are necessary to produce 4.50 moles of NO2? answer: 252 grams...
81. Calculus

I need to take a college calculus class. Can someone direct me to a site which might help me get a good start? Thanks in advance.
82. calculus

Use the fundamental theorem of calculus to evaluate the following integral ∫^π/2 **the bottom is zeroe. |cosx| dx
83. Calculus

Use any calculus method to determine extrema, intervals where the function is increasing or decreasing, asymptotes,and points of inflection for y = -x^4 + 2x^3 - x + 2
84. Calculus

Find the derivative of the following function using the appropriate form of the Fundamental Theorem of Calculus. intergral s^2/(1+3s^4) ds from sqrtx to 1 F'(x)=?
85. Calculus

Integrate e^(-x^2/2) dx What branch of calculus is this? Is this differential equations?
86. calculus

Find the limit of this calculus problem.? (5x-3)/(ln(5+4e^(x)) x=inf
87. calculus

How can we verify area of square and rectangle by calculus ?
88. Calculus

How can I efficiently study for a Calculus test with 8 sections?
89. calculus

Can I have a website of Beginner calculus books?
90. Calculus

Find the distance from point P<5,5,2> to the line x=0 , y=5-5t, z=2+t. I keep getting 0 and that's not the correct answer and I can't figure out what's going wrong.

Determine the value of w so that the line whose equation is 5x-2y=-w passes through the point at (-1,3). Answer: w=11
92. pre Calculus

how do you find additional points on a line with a slope of 1/2 and a given point of (7,-2)? im sorry but i still cant get an answer for this question.
93. CALCULUS

Determine whether F satisfies the hypotheses of the mean value theorem on [a,b], and if so, find all numbers c in (a,b). f(x)=X^2/3 [-8,8] why this answer is f is not differantible?
94. Calculus

no one on physics forums seems to know the answer so I was wondering if you guys could help post anser on these forms of course if you can help my question is here h t t p : / / w w w . p h y s i c s f o r u m s . c o m / s h o w t h r e a d . p h p ? t = 4 2 1 7 5 8
95. AP Calculus

Find (dy/dx) for the following implicitly defined function: cos(x-2y) = 3y for the answer, i got.. dy/dx = (-sin(x-2y)) / (3-2sin(x-2y)) but i'm not sure if it's right..
96. calculus

Consider the function f(x)=In(x^2+1). Calculate the slope of the tangent line at the point (2,ln(5)). Round your answer to two decimal places.
97. Calculus

integral 5e^t-(sin(t))dt I figured this out as the answer 5e^t+cos(t). My question is if I need to put a +C at the end of the equation. Thanks for your time.
98. Calculus

Use integration by parts to find the integral. Round the answer to two decimal places if necessary. (x+4)^ln x dx between 3 and 0
99. calculus

Solve the differential equation below, given the initial condition f(0) = 3. Express your answer using words or symbols. y=-5x^2
100. Calculus

Determine an expression, in simplified form, for the slope of the secant PQ. Given: P(1,3) , Q(1+h, f(1+h)) , where f(x) = 3x^2 PQ=Y2-Y1/X2-X1 I keep getting wrong answer, arghhh.