Mathematics

Find the radius of the cone? V=1/3 pi(3.14) r^2h

Small cone:V=10 cubic in., h=5 in.-10=1/3(3.14)r^2x5 ie(10x3)/5 =3.14r^2ie 6=3.14r^2ie r^2=6/3.14ie r= sqrt(6/3.14)=1.38 in.

Help with finding rate of interest of compound interest..(rearrange formula)

So, the formula is A = P(1+i)^n A = 578.81 P = 500 n = 3 and I have to find i. Can anyone help explain how I rearrange the formula to find i?-If you have x^2 how do you make it x? Think about it you

How do i transpose n when t=a+(n-1)d

the answer is n=t-a+d / d.... but id like to know how they have got to this point and what steps were done please-( n - 1 ) d = t - a n d - d = t - a n d = t - a + d n = ( t - a + d ) / d-Thank you

Chem math question!!

I had this question in chemistry that confused me a bit! Sarin (C4H10FO2P) may have a lethal dose as low as .01 mg/kg. meaning that someone would die if exposed to .01 mg of Sarin for every kg of bo

How to solve for log(base 3)6+log(base 3)6-log(base3)4

Use the fact that log(a) + log(b) = log(a*b) and log(a) - log(b) = log(a/b)regardless of the base for the logarithm. In this case you can rewrite the equation as: log(base 3)[6*6/4] = log(base 3)[9

Algebra II Help √x+5 = x-1

√x+5 = x-1 Square root of x+5 = x-1 So, the possible answers are... a. x = 4 b. No Solution c. x = -1 or x = 4 d. x = -1 This was a question I missed on a test. I said the answer was c. and my teac

How do i solve this sequence

the first 3 terms of the sequence -8,x,y,72... form an arithmetic sequence while the 2nd 3rd and fourth terms form a geometric sequence. determine x and y note: arithemtic : common difference geometr

Help finding x intercepts and converting into quadratic equation

The original question is find all the x intercepts (if any) for the following polynomial: f(x) = (x^8 + 5) (x^12 + 7) When I factored this polynomial I got: x^20 + 7x^8 + 5x^12 +35 How do I convert

How do you factor this

25m + 35n ysquared + 4y- 21 3dsquared - 75-a)25m + 35n = 5(5m+7n) b)ysquared + 4y- 21= (y+7)(y-3) c)3dsquared - 75= 3(dsquared - 25) = 3(d+5)(d-5)-Factorisation Quadratic formula Different of two squa

Converting answer in to percent

Use the markup equation S = C + rC, where S is the selling price, C is the cost, and r is the markup rate. A set of golf clubs costing $650 is sold for $1105. Find the markup rate on the set of golf

Do you know how to do these 2 math problems?!?!!?i need heeeeelllllp!!!!!!

4 cm, Find the surface area and volume of a right cone with a radius of slant height of 5 cm, and a height of 3 cm. Find the surface area and volume of a sphere with a radius of 20 yards.-SA = p

Logbase2(x) = 2logbase2 3 + logbase2 5 - How do you solve this maths

Logbase2(x) = 2logbase2 3 + logbase2 5 log x / log 2 = 2 log 3 / log 2 + log 5 / log 2 Multiply both sides by log 2 log x = 2 log 3 + log 5 log x = log 3^2 + log 5 log x = log 9 + log 5 log x = log

Ratio question, mathematics.....

The diameters of two pipes are 4 cm and 4.5 cm. What would be ratio of flow of water in those pipes?-The flow is proportional to the cross-sectional area of the pipe. The ratio of area is the squared

The temperature of a liquid decreases steadily over several hours. If you calculate the average temperature ch

average change in temperature per hour = (final temperature minus initial temperature)/Time in hours As this is decrease numerator has to be negative and negative divided by positive is negative so av

Can you evaluate this limit

L = lim [b-b√(1-2k/b)] as b→∞ Its an indeterminate of form infinity minus infinity. Hint: The answer should be L = k.-I am assuming that we need to calculate: lim (b-->infinity) [b - b√(1 - 2k/b)].