Mathematics

How do I find the slope of the line through these pair of points

(-7/5, 3/10) and (1/5, -1/2)-slope = (y2 - y1) / (x2 - x1) slope = (-1/2 - 3/10) / (1/5 - (-7/5)) slope = (-5/10 - 3/10) / (1/5 + 7/5) slope = (-8/10) / (8/5) slope = (-8/10) / (16/10) slope = -8/16 s

Someone please help with this precalc problem!!!

Find an expression for a cubic function f if f(3) = 108 and f(-3) = f(0) = f(4) = 0.-1) As, f(-3) = f(0) = f(4) = 0, {-3, 0, 4} are the roots of the required cubic polynomial. Hence, the cubic polynom

Trig Help Anyone? please.

Write an equation for all points 3 units from (-5,6). and then graph the points. How do i set up and solve this problem? thank you!-First, try and visualise what that means. If your standing in a roo

MATH HELP-How would i solve for 'a'

a^(0.03)=1.0012-a^(0.03) = 1.0012 log a^(0.03) = log 1.0012 0.03 log a = log 1.0012 log a = (log 1.0012) / 0.03 log a = 0.01736136 a = 10^0.01736136 a = 1.0407858 Another way to do this is to conside

Area of a Triangle math

Find the area of the triangle T in the plane with vertices A(2,4), B(3,7), and C(4,5).-The area of a triangle can be given in terms of its coordinates by the determinant formula: | | x1 y1 1 | | | x2

How would you solve : 3^(x+1) = -3^x + 8

3^x+1 +3^x=8 3^x(3+1)=8 3^x(4)=8 3^x=2 xlog3=log2 x=log2/log3 ~David-3^(x + 1) = - 3^x + 8 3^(x + 1) + 3^x = 8 3(3^x) + 3^x = 8 4(3^x) = 8 3^x = 2 xln3 = ln 2 x = ln2/ln3 x = .69/1.1 x = .62 3^(1.62

Is this a arithmetic series or geometric

log3 + log9 +log27 +... thanks :)-log3 + log9 +log27 +... = log3 + 2log3 + 3log3 +... This is sum of an AP with a = log 3 and d = log 3. Not that 3,9,27,.... is a GP and log3, log9, log27 .... is an

Maths help plzzzzzzzzzzzzzzzzzzzz

A school has 20 teachers. one of the teacher retires at the age of 60 years and a new teacher replaces him. this reduces the average age of the staff by 2 yrs. then the age of new teacher is?-we will

Would 0 count when working out mean, median, and mode

Like for instance: Data: 0.5, 0.5, 0.3, 0, 0.4, 0.7, 0.2, 0.3, 0.1, 0.3 Would the 0 matter when working out the mean, mode and median? What are the answers?-yes it does. so in the set of data you g

Please Help! Maths exam coming up. Solve: 2x(5-x)=8 Thanks :)

Please show all your working. Thanks to anyone who helps me!-Distributive property. 10x-2(xsquared)=8 Move it over to get 2(xsquared)-10x+8=0 Factor out... (2x-2)(x-4)+0 x=1 or 4-I honestly dont know.

Explain why the following ratios are equivalent

1 27 out of 7563 out of 17536 out of 100-If the ratios are equivalent, they all reduce to the same fraction. 27/75 = 9/25 = .36 63/175 = .36 36/100 = .36

Help with graph! Easy 10 points!

I need to construct a line graph showing bacterial growth. It gives me a table with the hours, and then beside it, the number of bacteria at each hour. How can I make this aline graph? Which variable

(a+c)x + x^2 = (x+a)^2 x = ? (in terms of a and b)

(x + a)^2 = x^2 + 2ax + a^2 so ax + cx +x^2 = x^2 + 2ax + a^2 thus -ax + cx = a^2 so x(c - a) = a^2 and x = (a^2)/(c - a)

Hardest algebra question in the world, can you do it

i made it up by the way, Angelina walks 50miles per second(mps). Brad walks 20 miles per second. How far apart are they going to be in 100 seconds? its HARD!-(50 - 20) * 100 = 30 * 100 = 3000 miles-

What is ln(5p+9)= -2

i know the answer is -9e^2+1/ 5e^2 my teacher didnt teach me about negative logs so im trying to figure it out-OK.Youve been given a bunch of answers...but lets work the process. You know the e^ln(x)