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Q: Which is the best way to solve the equation the square root of x equals m?

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Take the square root of both sides of the equation

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

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

If x squared equals n, then x is the square root of n.

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

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

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!

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

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

Verde

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:(

True

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

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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.

Studies show that the best way to solve this would be to use a calculator.

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

7

Exponent

Yes. (Assuming that -3x2 is the best representation of 3x2 that this browser will allow.)

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.

2x + 6y = 93x - 12y = 15Chose the second equation because you can simplify it.3x - 12y = 15 divide by 3 to both sidesx - 4y = 5 add 4y to both sidesx = 4y + 5Replace 4y + 5 for x to the first equation.2x + 6y = 92(4y + 5) + 6y = 98y + 10 + 6y = 914y = -1y = -1/14x = 4y + 5x = 4(-1/14) + 5x = -2/7 + 5x = -2/7 + 35/7x = 33/7