Arianna solved a fraction division problem using the rule “multiply by the reciprocal.” Her work is shown below. Two-thirds divided by StartFraction 4 Over 5 EndFraction. Two-thirds times StartFraction 4 Over 5 EndFraction = StartFraction 8 Over 15 EndFraction

Which is the most accurate description of Arianna’s work?
Arianna solved the problem correctly.
Arianna multiplied the dividend by the divisor instead of finding the reciprocal.
Arianna multiplied the denominators instead of finding a common denominator.
Arianna multiplied with the reciprocal of the dividend instead of the reciprocal of the divisor.

Use addition and subtraction to simplify the following polynomials. a. add polynomials: (3 – 4x + 8x^2) + (–6 + 2x – 5x^2) step 1: rewrite the polynomials without the parentheses. step 2: write the polynomial in descending order and use parentheses around like terms. step 3: add the like terms identified in step 2 to simplify the polynomial. b. subtract polynomials: (3x – 5 – 7x^2) – (–2 + 6x^2 – 5x) step 1: rewrite the polynomials without the parentheses. remember to multiply each term in the second parentheses by –1. show your work. step 2: write the polynomial in descending order and use parentheses around like terms. step 3: add the like terms identified in step 2 to simplify the polynomial.

If the scale factor between two circles is 2x/5y what is the ratio of their areas?

1: 4 if the wew 35 surfboards at the beach how many were short boards?