Mathematics

Integrate cos(3x+1) dx

is it (sin(3x+1))/3 + c?? im confused >-You are right. When in doubt, just perform the integration using a simple method. One such is shown next. Put 3x+1 = t. So this means 3dx = dt and hance dx = d

Probability question...

Of ten twenty-dollar bills, two are counterfeit. Six bills are chosen at random. What is the probability that counterfeit bills are chosen? This is what I did: C(8,4) * C(2,2) = 70....but the answer

Can someone help me with this math problem

This is my last problem and I dont get it? A snowmaking machine at a ski resort can produce enough snow for a beginning ski trail in 18 hours. With a typical natural snowfall, it takes 24 hours to de

How to solve x³+10 = 2√81 , y³-x² = ³√125+2√81

sqrt(81) = 9 cuberoot(125) = 5 now that u need to find: x^3 + 10 = 18 y^3 - x^2 = 5+2(9) = 23 x^3 = 18-10 = 8 x= 2 y^3 - 2^2 = 23 y^3 = 27 y = 3 there u find x = 2 and y = 3

Find the LCD of 6x^2 and 9x^6

I need to find the Least Common denominator of these 2 expressions. Im thinking its 18x^? but not dont quite remember how to do this...-Lowest Common Multiple (not Denominator - aka Greatest common De

How do I not fail math!!!

I have the WORST teacher ever!!! She dosnt teach is anything and and I got back a test with a 48% Half of the class have lower than a 60% in her class and there have been like 20 people talking to th

HW HELP - Basic Calculus Problem Concerning Finding A Limit On A Graph

Let g(x) = (5x^2 + 17x + 14)/(x+2) What is the limit of g(x) as x approaches -2? How would I show this on my graph?-Alright, realize the top is factorable of that equation. Ill save you some elem

Differentiation of Inverse trignometric function

DifferentiateArc Sin(2^x+1) / (1+4^x) with respect to x-y = sinֿ¹ [ (2^(x+1)) / ( 1 + (4^x)) ] y = sinֿ¹ [ 2( 2^x ) / ( 1 + (2^x)²) ] ............... (1) ____________________________ Let : (2^x) =

Please help solve this questions of Logarithms

Calculate the value of the following logarithms to the correct significant figures Log10(8.337) Log10(8337) Log10(8.337 * 10E8) Anti-Log(0.454) = 10^0.454 Anti-Log(1.454)= 10^1.454 Anti-Log(-1.454) =

Ok i dont understand math may you help

given f(x)=3x+4 and g(x)=x^2, evaulate each of the following: #16. f(2a) #17. g(4a) #18. g(b^2) #19. f(√b) #20. f(x-2) #21. g(x-4) ok im srry if thats alot but i did the other 20 problems tha

Can you match each equation

1. x^2-25=0 2. k^2=45 3. b^2=-16 4. m^2=81/64 A. no real number solution B. two integer solutions C. two irrational solutions D. two rational solutions that are not integers If all possible could yo

What would this simplified fraction be

Simplify.Remember fractions are not considered simplified unless theyre reduced: 1/4 + 5/8 = ?-First, get a common denominator. 1/4 = 2/8 Now add them up. 2/8 + 5/8 = 7/8 7/8 is your answer as it is

Vector in space (find equation for a sphere)

Find the equation of the sphere with largest radius centered at (1; 2; 3) that is contained in thefirst octant of R^3. (R^3 probably mean in 3D)-The min distance to axis planes is min(1,2,3) = 1.There

Can somebody please help me with these problems

x^2-4x+29=0 x2+3x-5=0 Can someone please explain to me how to do these? Im so confused. It says to solve by completing the square. I have a test today and I am still clueless on how to do these type

If the prime factors of a number are all prime numbers less than ten and no factor is repeated what is the num

I really need the answer!!!-2*3*5*7 = 210