Which polynomial is factored completely?

121x^2+36y^2

(4x+4) (x+1)

2x (x^2-4)

3x^4-15n^3+12n^2

What is |9| can someone answer fast

Dr. Silas studies a culture of bacteria under a microscope. The function b1 (t) = 1200 (1.8) represents the number of bacteria t hours after Dr. Silas begins her study.

How do you solve the problem 378x6 using place value with regrouping and how do you know when to regroup

What is everyone being for halloween.

William cycles at a speed of 15 miles per hour. he cycles 12 miles from home to school. If he increases his cycling speed by 5 miles per hour, how much faster will he reach his school?

A gardener uses a tray of 6 conical pots to plant seeds. each conical pot has a radius of 3 centimeters and a depth of 8 centimeters. about how many cubic centimeters of soil are needed to plant the full tray? round to the nearest cubic centimeter.

The price of 2 bananas are $1.00. How much would 7 bananas cost?

students' scores on an anthropology test have a mean of 31 with a standard deviation of 3.5 if rochelle scores 20 on her test, how many standard deviations away from the mean is her score

A gardener is planting two types of trees: Type A is 8 feet tall and grows at a rate of 6 inches per year. Type B is 10 feet tall and grows at a rate of 4 inches per year.

You have a $500 public relations budget for the current year. You would like to generate publicity by publishing several ads in the local township newspaper about your store's sponsorship of community activities.