The area of a rectangle is 525 sq cm. the ratio of the length to the width is 7:3. find the length and width.

Tests show that the hydrogen ion concentration of a sample of apple juice is 0.0003 and that of ammonia is 3.1 x 10^-9. Find the pH of each liquid using the formula pH = - log |H3 0^+| where H3 0^ + is the hydronium ion concentration.

Cuanto es dos más dos

Simplify 4 to the power of 7 multiplied by 9 to the power of 7. A. 13 to the power of 14. B. 13 to the power of 7. C. 36 to the power of 7. D. 36 to the power of 14.

Will the first digit of the quotient of 2,589 : 4 be in the gundreds or the thousands place? explain how you can decide without finding the quotient

enrollment at Parker junior high is set to increased by 115% for the next school year if there are 340 students enrolled to this school year how many will be in roll next year

What is the completely factored form of 3x^5-7x^4+6x^2-14x?

3. One day, Shilo's Shipping Company sent 4 trucks, each with 6 axles, and 5 trucks, each with 2 axles, across the bridge in one direction.

Find the perimeter of a table cloth that is forty inches square.

For every 14 ice-cream cones you buy, you get 2 free. How many free ice-cream cones will you get if you buy 56 cones?

About 7 % of the population of a large country is math phobic. If two people are randomly selected, what is the probability both are math phobic ? What is the probability at least one is math phobic ?