Mathematics

How to evaluate the expression: log 10,000,000

log(10,000,000) =log(10)^7 =7log(10) =7(1) =7 answer//-When we are doing log...... and if the first digit is 1 (one) and followed by any number of 0 (zero) or 0s (zeroes) the answer will be the numbe

How to use the integral function on your calculator.

I have the problem (sin(pi x)- ( x^(3) - 4x)^(2) dx. limits being 0 and 2. The answer should be 9.978.Im not getting it. Please help.-(2) Int( sin(pi*x) - (x^3 - 4x)^2 dx (0) (2) Int( Sin(pi*x) - ( x

What is this question asking (Normal distribution)

The time X it takes a consultant to see a new patient at a hospital out-patient clinic may be assumed to be normally distributed with mean “16 minutes” and standard deviation “1.5 minutes”. The time Y

What do I do with (x+11)^2+50=0 (using square root property)

Hi, (x+11)² + 50 = 0 (x+11)² = -50 . ______ . . .___ √(x+11)² = √ -50 . . . . . . . . .__ x+11 = ±5i√ 2 . . . . . . . . . __ x = -11 ± 5i√ 2 I hope that helps!! :-)-It depends what field you are w

With is 25% off of 73%? Math question. 5 STARS FOR BEST ANSWER!

So my math grade is at a 73% and the written final is 25% of the grade. I am NOT good at math at ALL and I know I am going to fail the final. If I fail the final, what would my grade be sitting at aft

Binomial expansion - please help (AS Level)

Hi, I am trying to do a maths paper, and Im totally stuck on this question. Im so angry at myself because I know it should be really easy, but I just cant remember how to do it. I have the Answer Book

Is anyone out there? Can anyone save me from this math problem misery/ I think its pre algebra

A hospital mails out surveys to 500 recent patients to get feedback on their hospital visit. A. population-recent patients at the hospital sample-people who mail back survey possible bias-higher hosp

What is the Derivative

i know it sounds stupid but whats the Derivative ? where did it come from i know that drevative is the change but if we say dy/dx = ( y2-y1/x2-x1 ) so what is the first dy/dx will be ? and what the se

Can you help Find the mean, median, and range of the data set

12, 9, 14, 22, 3, 11, 14, 15 Find the mean, median, mode and range of the data set. 4, 2, 6, 3, 8, 6, 6 An official for the department of transportation counted the number of vehicles that passed th

Proving identities. Please help.

sec 2A + tan 2A= ( cosA + sin A ) / ( cos A - sin A) please help me in proving the identities, from both side is preferable. Thanks a lot! :D-L.H.S 1/cos2A + sin2A/cos2A = 1+sin2A/cos2A =[cosA+sinA]^

Logarithm Question, Simplifying

Simplify the following: 2log[5]x^2 ÷ 1/3log[5]x I have no idea how it becomes 12. Ive tried: log[5]x^4 ÷ log[5]x^1/3 log[5]x^(4-1/3) log[5]x^(11/3) Idk. Help please.-Your logarithmic identites are

Find the standard deviation of the weights of the bags of popcorn (S1 Edexcel Help)

The weights of bags of popcorn are normally distributed with mean of 200 g and 60% of all bags weighing between 190 g and 210 g. Ive read the mark scheme and I still dont get it. Could someone go thr

How can I solve this

Dont just give me the answer. I need to master the procedure: -At the walter web bird store, pet sales fell by 20% in October. If sales fell by a further 25% in November what was the percent decreas

In the equation y = ( 1/6 )x, does y vary directly with x

a.) Yesb.) No-A (Yes)-Yes,Its a direct relationship-yes doubling x will double y halving x will halve y

How do I solve this trapezoidal approximation problem

Hello, I have a trapezoidal approximation problem, but the sub-intervals are uneven. Anyone know a formula to use in such a case? Thank you!-A = ½ (b1 + b2) h Where: h = Δx b1 = f(x1) b2 = f(x2)