Mathematics

Find a general formula for each arithmetic sequence

1.8th term is -20; 17th term is -47 2.12th term is 30; 22nd term is 50-The n-th term of an arithmetic sequence is a+(n-1)d where a is the first term and d is the common difference. 1) a+7d=(-20); a+16

How to find the instantaneous rate of change at the tangent point indicated in a graph?!

Do I have to find the function equation or can I just find two points on the tangent and solve it like the average rate of change??-Yeah, all you need to do is find the slope of the tangent line (so a

Could someone help me with an algebra 1 question

could someone explain this please? A range of a set of numbers is 30. The highest number in the set is two times larger than the lowest number in the set. Which set of algebraic equations will solve

Reckon you can answer this uber hard maths question

A music store offers a prize to a customer who can guess the closest, the number of jelly beans that fill a litre jar on the counter. Estimate the number of jelly beans in the jar if 1 jelly bean is a

Needs help on my math

1.A plane that carries mail makes a round trip each day from Chicago to New York. It makes 3 intermediate stops on the way to New York and 3 intermediate stops on the way back to Chicago. Suppose you

Trig application problem

I need help writing an equation to model a sine wave on a graph. If you could explain how to get the equation, that would be great. I have a quiz coming up and I need to learn how to put these togethe

Triangles: solving problems using the pythagorean theorem

mr potato bought a big screen TV. The screen is 52 in. wide and 29 in. high. Find the length of of its diagonal. a 16 foot ladder is leaned against a wall. if the base of the ladder is 5ft from the w

MATH HW HELP pleaseeee

Please help me work out these problems: 1) find the nth term of -200, 100, -50, 25 2) use sigma notation for 5+15+45+135+405 3)1+3+5+...+59 find the sum 4)2-1+1/2-1/4+...find the sum 5)1+4+4^2+..

Simplify x^2 + 8x over x^2

x^2 + 8x ------------- x^2 Please Help?!?!?! Thanks!!!-You can further break down (x+8)/x. if you seperate terms, x/x + 8/x since x/x = 1 answer is 1 + 8/x-(x^2 + 8x) / x^2 [x(x + 8)] / x^2 (x +

Please help simplify this exponential equation: (36^(x+3))/(6^(x+1))

I got (2x+6)/(x+1) but I dont think this is correct. Please help me with the correct answer. Thanks!-(6^(2*x + 6)) ------------------ = 6^(x + 1) 6^(2*x + 6 - x - 1) = 6^(x + 5) = (6^5)*6^x = 7776*(6

Solve the equation - x^2 + x/root 2 + 1 = 0

(- x^2+1)^2= (- x/sqrt2)^2 orx^4 -2x^2 +1 = x^2/2or2 x^4 - 5 x^2 +2 =0or2 x^4 - 4x^2 - x^2+2=0 or2x^2 ( x^2 - 2) - 1( x^2 -2)= 0or( 2x^2-1 ) ( x^2 -2) =0sox^2 = 1/2&x^2 = 2orx = _+ 1/sqrt2 &+_ sqrt2an

Scca math help !! i dont understand these two

For questions 1–2, solve each system by graphing on a separate piece of paper. Is (–2, 3) the solution of each system? 1.x + y = 1 x = –2(1 point) yes no 2.y = 2x + 7 x = y – 4(1 point) yes no-For (

Integration question (quick 10 points will vote asap)

Integrate dx/(1+(8x+9)^2) The answer im getting is 8tan^-1(8x+9) + C but its not on the multiple choice selection or at least i dont think a) 1/8 tan^-1 (x+9) + c - i think its this one but i cant

Help with data management

79. As a result of a recent survey conducted by a public health office, it was estimated that 85% of a targeted population enjoys an alcoholic beverage at least once a week; 35% of the population smok

Creating a calculus for dummies book. Just a few definition questions

You dont have to help with all of it. Any help at all would be appreciated! Thank you! (I have already done the rest of the project, these are just the ones Im stuck on) -What is the definition of a