Mathematics

Maths distance question

A cyclist plans target bike ride distance throughout the week Monday 10miles tuesday 10 miles wednesday 10 miles Friday 10 miles However he beats these and his actual distances are: Monday 12.3 tue

Help with this maths question plz

Anne, over 40 years,payed £61450 into a savings scheme. Over the same 40 years, Brain also pays into a savings scheme. In the first year he pays in £890 and his payments then increase by £d each year

Help on a math question! 10 points!

Here it is: You have two sand-filled egg timers, one for 9 minutes and one for 2 minutes. How can you use them to time a 5-minute egg?-You start them both at the same time and when the two minute egg

Finding the what? Tangent line? What the heck is that....

Hey, just started college and I dont understand a word that comes out of my proffessors mouth. We have to turn in homework online and I tried finding the tangent line for this equation, but the the an

Excluding stoppages, the speed of a bus is 54 kmph and including stoppages, it is 45 kmph. For how many min

Answer: Option B Explanation: Due to stoppages, it covers 9 km less. Time taken to cover 9 km =9x 60min= 10 min. 54-Excluding stoppages, the speed of a bus is 54 kmph and including stoppages, it is

5+7/10+8/100= in decimals

How to convert^that to decimals. IM STUUUUCK! & i have a test on Thursday. HELP?!-5 + 7/10+8/100= 500/100 + 70/100 + 8/100 = 578/100 = 5.78-one word... Calculator-the answer is 5.78

How to calculate percentage

I was told to calculate the percentage you needed to divide the smaller number by the bigger number and multiply by 100, for example 65/89=0.73X100=73 is this correct ?-Not strictly correct. Depending

Prove: [(sec^2 x - 6 tan x + 7) / (sec^2 x - 5)] = [(tan x - 4) / (tan x + 2)]

Rhs has tan x terms so in LHS connvert sec^2x to tan ^2 x + 1 (sec^2 x - 6 tan x + 7) = (tan ^2 x+ 1 - 6 tan x + 7) = tan ^2 x - 6 tan x + 8 = (tan x -4)(tan x-2) sec^2 x- 5 = 1+ tan ^2 x - 5 = tan

Write using Inequality or compound inequality (x+14)(x-5)(x+2)>0

X-Cubic function f(x) = (x+14)(x−5)(x+2) has roots at x = −14, −2, 5 Since leading coefficient > 0, f(x) starts off 0 f(x) f(x) > 0 for −14 f(x) f(x) > 0 for x > 5 f(x) = (x+14)(x−5)(x+2) > 0 −14

Help with exponents please

this is the last part of a proof i was doing. 2^(3n)*e^(i2πn) + 2^(3n)*e^(i4πn) = 2^(3n) + 2^(3n) = 2*2^(3n) =2^(3n+1) Can you please explain how they got from the first step to the 2nd step (im gues

Rewrite with positive exponents (35xy)^-7/10

a negative exponent is the same thing as a reciprocal of a positive one. x^-1 = 1/x (35xy)^(-7/10) = 1/((35xy)^(7/10))-[1/(35xy)]^(7/10)

Evaluate the limit using L'Hospital's rule

lim(x-->infinity)2xe^(1/x)-2x So when you plug infinity into the original equation, you end up with infinity - infinity.However, 0 is not the answer.So how do I go about solving this?Is LHospitals ru

Find the radius of convergence of Σ (n^n / n!)(x)^n for (n=1)

Please show all working, thank you!-the ratio test will work here. it states that a series converges if |a_(n+1)/a_n| approaches a value less than 1 and will diverge if is greater than 1. if it equals

What is a sample size in maths

I got this assignment about two dices. It says to toss them an add the scores together and its telling me to use sample sizes of 50 and 500. I dont understand-A sample size of 50 means that you need t

Log maths Q?? If log(base2)y = 3 + log(base2)x, give an expression for y in terms of x with no logarithms

the answer was y = 8x please help ! so confused-log2(y) = 3 + log2(x) First, subtract log2(x) from each side: log2(y) - log2(x) = 3 Combine the logarithmic terms: log2(y/x) = 3 Raise 2 to the po