Mathematics

Find values of the trigonometric function a t from the given information

sin t = -5/13, cos t -sin(t) = -5/13 cos(t) sin(t)^2 + cos(t)^2 = 1 (-5/13)^2 + cos(t)^2 = 1 (25/169) + cos(t)^2 = 1 cos(t)^2 = 144/169 cos(t) = +/- 12/13 cos(t) = -12/13 tan(t) = (-5/13) / (-12/13

How do you do this "real world" math problem

A salesperson ears a salary of $700 per month plus 2% of the sales. What must the sales be if the salesperson is to have a monthly income of at least $1800? Im so confused on how to do this. Please

Find d/dx √x using the rule f(x+h) - f(x)/h with f(x) = √x

Find d/dx √x using the rule f(x) = lim h->0f(x+h) - f(x)/h with f(x) = √x I already know that d/dx √x is1/2√xbut how do i use the formula to figure it out. Please help.-Yup, thats the definition o

Can someone show how to factor this completely.

X^3+64-X^3 + 64 is of form a^3 + b^3 which is a remarkable identity. a^3 + b^3 = (a + b)(a^2 + b^2 - ab), Then: X^3 + 64 = (X + 4)(X^2 + 16 - 4x). GOD bless you...

Will I be required to write proofs in calculus 3

I have a few questions I need answered. 1) Will I be required to write proofs in calculus 3 2) I have almost no experience writing proofs (Ive only done them in geometry, back in high school (years a

Trig: sin-cos-tan question

Stacy is flying a kite with a string that is 220ft. The kite is currently 135ft off the ground. What is the measure of the angle formed by the kite and the ground?-sinθ=135/220 θ=sin^-1(135/220) θ≈37.

Fourier series help please

Hey dudes I need help with this fourier series The odd function of f has a period of 2, it is designed in the interval 0 find the fourier series of f(x) =4x(1-x) Thanks for your help dudes :-)-We n

Divide the sum of 700 and -196 by the sum of 30 and (3.5 - 1/2) x (-3)

Using the standard order of operations (PEMDAS) this can be written as (700 – 196)/[30 + (3.5 – 1/2)(–3)] = 504/[30 + 3(–3)] = 504/21 = 24-(700-196)/(30+(3.5-1/2)(-3)) 504/(30+3(-3)) 504/(30-9) 504/

Whats 4+4? lollllllllllllllllllllllllllllllllllllllllll

8-4+4 = 13 ( modulo 5) 4+4 = 12 ( modulo 6) 4+4 = 11 ( modulo 7) 4+4 = 10 ( modulo 8) 4+4 = 8 ( modulo>= 9) Easy !!!!!! Now you work out how it works!!!-8 lol-8 if you want a joke answer 4+4=44 or-4+

How do you solve compound inequalities

1) -6 2) -3 3) 2d+5≤-1 or -2d+5≤5 Can you please show your work on how to do them? Thank you! :)--6 -6/3-2 -3 -3+1-2-2/2-1 2d+5≤-1 or -2d+5≤52d+5-5≤-1-5or -2d+5+(2d-5)≤5+(2d-5)2d≤-6or0≤2d2d/2≤ -6/2

Algebra 1 math problem help

1/2 • 2/3 just tell me how to get the answer please (: I went a little stupid over summer so yeah. Oh & 5/6 - 1/2 please. Thanks, 10 points best answer :D-top multiplied by bottom!! 1 x 2 = 2 & 2 x

Verify the given identity

1/(1-sinx)+1/(1+sinx)=2sec(^2)x-1/(1-sinx) *(1+sinx)+1/(1+sinx)*(1-sinx) [1+sinx+1-sinx]/(1-sin^2x) 2/cos^2x =2sec^2x.-Start out by combining fractions on the left side to get: LHS = 1/[1 - sin(x

A Non-perfect Square is irrational but the only number i now is 2 can anybody give me more number

sqrt(3), sqrt(5), sqrt(pi), almost any other number you can think of.There are many many more irrationals than rationals. pi and e are irrational, liouvilles number is irrational.....etc-square root

If the graph of y=b^x goes thru the point (-2,9), determine b.

a. -9/2 b. -3 c. 1/3 d. 3-Just plug in the values for the point 9 = b^(-2) = 1/ (b^2) Since 9 = 1 / ( 1/9), it must be that b^2 = 1/9.So b = + or - 1/3.-9 = b^-2 9 = 1/b^2 b^2 = 1/9 b = 1/3, c

What are the two numbers

There are 9 divisors for number A and 10 divisors for number B. The least common multiple of A and B is 2800. What are the two numbers? Please provide a solution, not just a plain answer.-first, 2800