Answers created by Bernardo Russo G. Ferreira
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How do you simplify #5\sqrt { 16x } + 7\sqrt { 9x } + 4\sqrt { 16x }#?

Prove that #4^(2n)1 # is divisible by #5 AA n in NN#?

How do you simplify #\frac { 9a } { a  2}  \frac { 18} { a  2}#?

Suppose that Kristin ate two hamburgers and drank three medium sodas, for a total of 1139 calories. Kristin's friend Jack ate seven hamburgers and drank two
two medium sodas, for a total of 2346 calories. How many calories are in the hamburger?

Question #5206c

Question #0e76f

How do you solve this system of equations: #2x + y =  4 ;  6x + 3y =  12#?

Can you prove this using mathematical induction?

How do you write an equation of the line that passes through (3,4) and (1,0)?

There is a rectangle with a width of 5x and a length of x + 4. How do you find the area of the rectangle?

How do you find the polynomial function with roots 1, –2, and 5?

Question #acdcc

How do you prove #sin x = 1  2 cos^2x#?

How do I use the intermediate value theorem to determine whether a polynomial function has a solution over a given interval?

How do I multiply complex numbers in polar form?

How does the domain of a function relate to its xvalues?

How do I find all real and complex zeros of #x^4  15x^2  75#?

How do I find the magnitude of a vector?

What are the elementary row operations of matrices?

How do I find the polar equation for #y = 5#?

What is the equation for a billing process that has a onetime fee of $100 and a monthly charge of $25?

How do I find the equation of the line which passes through the points #(8, 1)# and #(2, 3)#?

How does acceleration affect momentum?

What is a complex conjugate?

How do I find the negative power of a complex number?

How do I find the trigonometric form of the complex number #3i#?

What is the formula for multiplying complex numbers in trigonometric form?

What is the dot product of two vectors that are perpendicular?

How do I find the angle between two vectors in threedimensional space?