Answers edited by Alberto M.
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How do you solve by substitution # x  5y=10# and #2x+y=7#?

Question #e4066

How do you solve #sqrt(x+3)sqrt(x1)=1#?

Can someone help with this question?

Question #ddee6

How do you graph the quadratic function #y=x^2+2x+4#?

How do I find the extraneous solution of #sqrt(x1)=x7#?

What is the domain and range for #y = sqrt(x3)#?

How do you find the nth partial sum, determine whether the series converges and find the sum when it exists given #ln(4/3)+ln(9/8)+ln(16/15)+...+ln(n^2/(n^21))+...#?

What is the limit as x approaches infinity of #ln(x)#?

Question #1cabe

How do you evaluate #arcsin 0#?

How do you write the equation if F varies inversely as the cube root of S and S = 64 when F = 4?

What is the range of the function # h(x) = 1 /(x^2  9)#?