Mathematics

Need some math help! I have a few questions that I need a little help on! Thank you!!

1.) Write using negative exponents1/6^4 2.)Multiply and simplify 3^-2(negative 2)X3^3 3.)Divide and simplify 4^-2/4^4 4.)Divide and simplify y/y-5 5.)Simplify (2^3)-^2 6.)Solve 2.3=-y/2-Negative ex

Why no solutions exist

-1 = sqrt(x^2 +y^2) dont understand why-x² is always positive.. y² is also always positive.. sp √(x²+y²) is always positive.. SO it cant equal -1-When you have √, ALWAYS take principal square root

Quadratic Expression Help Please ..

Can someone please help me with my test review I understand most of it except a few things and this is one of them I just cant seem to get the right answers no matter what Im getting numbers like 700

Is y=3x-4 a linear equation

A. Since a constant change in the x-value correponds to a constant change in the y-value, y=3x-4 is not a linear equation. B. Since a constant change in the x-value correponds to a constant change in

How do I solve using A+bi form

(5-6i)^2 please show work!-(a - b)^2 = a^2 - 2ab + b^2 Let a = 5 and b = 6i => (5 - 6i)^2 = 5^2 - 2 * (5) * (6i) + (6i)^2 = 25 - 60i + 36i^2 = 25 - 60i - 36...[because i^2 = -1] = - 11 - 60i => A = -

For how many integers x is the following true: /2-4x/<14

For how many integers x is the following true:/2-4x/ Please show your work! Thanx!!-|2 − 4x| This implies: 2 − 4x -14 -4x x > -3 -4x > -16 x Therefore: x > -3 AND x Which can be combined and wr

How do you solve this math problem

In an election, the winning candidate had 160 more votes than the loser. If the total number of votes cast was 3260, how many votes did each candidate receive?-x = candidate A X + 160 = candidate B X

Prove: ((cot^2x)/(1+cot^2x)) = cos^2x

So unfortunate..proofs. please help!-1 + cot^2 x = csc^2 x (cos^2 x/sin^2 x)/(1/sin^2 x) = (cos^2 x/sin^2 x) * (sin^2x / 1) The sin^2 x terms cancel leaving only cos^2 x.

Percentage increase, what is the original value

If someones wages were increased by say 7.8% resulting in $807, what was the original wage? I dont need the answer, i just need how to figure it out.Thanks :)-since the wage increased; 107.8% = $807 1

Expanding a Binomial with imaginary numbers

(-2+2i)^8-Note that (-2 + 2i)^2 = 4 - 8i + 4i^2 = -8i. So, (-2 + 2i)^8 = (-8i)^4 = 8^4 * i^4 = 4096. I hope this helps!

How many KM do you travel in an hour

How many KM do you travel in an hour? Say the odometer reading in the car was 261375, and I drove for an hour, what would the new odometer reading be? Thanks heaps to anyone who answers :) x-this rea

Math question: How much would a ride of 10.6 miles cost not counting the tip

A taxi company charges $1.50 for the first mile and $.25 for each additional half mile or portion of a half a half a mile.How much would a ride of 10.6 miles cost, not counting a tip? Please explain h

Factorising a cubic function

how would you factorise x^4+x-x⁴ + x = x (x³ + 1) Now (x³ + 1) is the sum of cubes. Formulas for sum/difference of cubes: a³ + b³ = (a + b) (a² − ab + b²) a³ − b³ = (a − b) (a² + ab + b²) x⁴ + x = x

Chinese Remainder Theorem

I have to find the smallest positive integer x which satisfies two simultaneous linear congruence. I used the Chinese remainder theorem and got a single linear congruence class to be x = 139 mod 165 (

Evaluate ∫ (√x - x + xcot^2 x) / x dx

I tried to solve this and after a few steps I keep getting stuck at finding∫ cot^2x/x or maybe I just did the first few steps wrong:/ can you please solve this and show me?-(√x - x + xcot^2 x) / x =