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Q: Which is the best way to solve the equation x squared equals n?

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It depends on which variable you wish to solve for.

Take the square root of both sides of the equation

Divide both sides by 64 to find the value of x

64x = 37 Divide both sides by 64: x = 37/64 or 0.578125

It is not possible, in general to solve one equation in two unknown variables. The best that you can do is rewrite the eqaution so that one variable is defined in terms of the other. xy = x - x2 = x(1 - x) Assuming x not 0 (else the original equation degerates to 0 = 0) we can divide both sides by x to give: y = 1 - x

X2 = k Take square root each side. X = (+/-) sqrt(k) ============

You cannot go beyond x = k unless you know the value of k. And in that case, the equation is solved so there is nothing further to do!

Which of the following is the best translation of this equation?

6The line of best fit has the equation = -3 + 2.5x. What does this equation predict for a value of x = 3?Answer: 4.5

15

true

The best plan for that particular equation would be to first subtract 15 from each side, and then apply the quadratic formula.

Verde

This is a hyperbola. It is best approached using Fermat's factorisation method. Seefermat-s-factorization-methodor google wikepedia. I don't know of any faster approach.

boys+boys=silly is the same as 6721+6721=13442. the best hint to solve it is y=2 and s=1. you must then do math. sorry:(

Without an equality sign the given expression can't be considered to be an equation.

do you mean, x2 = n?? Take the square root.

True

Using the quadratic formula to solve any quadratic equation is the best way of getting around it because the quadratic formula is "the opposite of b plus or minus the square root of b squared minus 4ac all divided by 2a. This formula only works with trinomials and second degree equaitons. If the equation is a binomial, then put in a placeholer (0) and substitute them into the equation.

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That depends on the equation. In general, you'll try to isolate the variable, by using operations (on both sides of the equation) that get rid of anything other than the variable, on the side the variable is on.

You cannot solve a single linear equation with two variables. At best you can express one variable in terms of the other.

7

Exponent

This can be done at least 2 ways.Soln 1: The saying: IS over OF equals PERCENT over 100, tells how to set up a proportion to solve.5/28 = x/100 ... cross multiply and solve for x28x = 500x = 17.86%Soln 2: Translate the word problem into an equation. IS means equals, OF means to multiply.x (28) = 5 solve, get a decimal answer and convert it to a percent.x = 5/28 = 0.1786 = 17.86%Pick which method you like best to use.