Suppose the series Σ cn xn has radius of convergence 2 and the series Σ dn xn has radius of convergence 3. What is the radius of convergence of the series Σ (cn + dn) xn?

Math property x + (-x) = 0

Karen deposited $25 in the bank on Monday, $50 on Wednesday, and 15 on Friday. On Saturday she took out $40. Karen's original balance was a hundred. What is her new balance now?

Find the balance in the account. $2,400 principal earning 2%, compounded annually, after 7 years $2,736.00 $2,756.85 $307,200.00 $17,136.00

If 9 more than twice a number is 3 less than three times the same number, what is the number?

7x + (-24) + (4x) + 12 if x = - 2

A diver needs to descend to a depth of 100 feet. She wants to do it in 5 equal descendants. How far should she travel in each descent?

Expand and simplify 4 (2x+4) + 5 (4x+3)

Darren is paining a wooden block as part of his art project. The block is a rectangle prism that is 12 cm long by 9 cm wide by 5 cm describe the rectangles that make them what is the service in square meters the Darren has to paint

What does this equal (7-b) + (3b+2)

What is the area of a rectangle with a width of 12feet and a length of 10 feet?