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Answers by Becca M.

2,570,000,000,000 expressed in engineering notation (answer)

Hi Michael, In scientific notation, 2,570,000,000,000 would be written as 2.57 x 1012 This is also correct for engineering notation since the power is divisible by 3. Don't forget that the number that starts the expression needs to be between 1 and 10 (2.57 here). Hope this helps...

how would you graph y=2x-3 (answer)

Hi Bob! Your problem is in slope intercpet form. (y =xm + b) where m = the slope of the line and b = y-intercept. There are a couple of ways to solve this problem, I'm going to show you the numeric way to solve the problem. create a graph o values for x and y. Plug in each value...

4.15 times 6.3 (answer)

Hi Jada!   Multiplying with decimals can be tricky, but it doesn't have to be. What I like to do is just forget the decimals until the end of the problem. all you have to do is count the numbers on the right side of the decimals. 4.15 has two numbers on the right side of the decimal...

How do you change x^(7/5) into a radical expression? (answer)

Hi Susan! Just like the opposite of addition is subtraction, and the opposite of multiplication is division, the opposite of exponents is roots. To change x^(7/5) into a radical expression, you have to convert it to a root. The numerator stays as the power, and the denominator moves...

This is a math Q (answer)

Hi Maneet, Sometimes when math problems come in words instead of numbers, it gets conusing. Try re-writing the problem with numbers. 1/3 times pi is the same as (1/3π) then multiply that by (25*12). So, your problem is (1/3π)(25*12). Pi is not an exact number, so your answer...

How do you label points where the line crosses the axes? (answer)

Hi Clara, You are asking how to label the points where the line crosses the axis, is that correct? Like Andy answered you, your slope is -1, (or -1/1, rise over run) and your y-intercept is -4 (since y = mx + b). Since you know that you have a point at (0,-4), you can then use...

Help me understand (answer)

Hi Glenda, Andy Gave you a perfect answer for the problem that you posted, but I wonder if the problem you posted is correct? 9/6 =x10 is not a proportion. Is the problem 9/6 = x/10? If so, You can also solve this equation by cross multiplying. 9/6 = x/10 To cross multiply,...