If a+b+c=7 and ab+bc+ca=20 find the value of a^2+b^2+c^2

Greatest common factor of 20 w and 45 wt?

If x varies jointly as y and z, and x = 8 when y = 4 and z=9, find z when x = 16 and y = 6

He percentage of children living in single-parent households in America's five most populated cities is: Philadelphia 40.4%, New York, 30.5 %, Chicago 32.2%, Houston 26%, and Los Angles 25.8%. What is the range of this data? A) 154.9% B) 100.

How many times as heavy is the Golden Eagle as the Red Tailed Hawk? The Golden Eagle weighs 13 9/10 lbs and the red tailed hawk weighs 3 1/2 lbs?

What is the common difference for this arithmetic sequence? 31, 48, 65, 82, ... A. 79 B. 7 C. 17 D. 99

Make p the subject in m=pq+rq (2)

I'm 2014, 125 million smartphones were sold. If this additional data is added to the table, explain if y is still a function of x

Sara wants to buy a house and needs $35,560 for a down payment. She currently has $28,000 in a savings account that earns 9% simple interest.

Write 5600000 in standard form

Which is the best definition of an equilateral triangle?