Isoke is solving the quadratic equation by completing the square.

10x2 + 40x - 13 = 0

10x2 + 40x = 13

A (x2 + 4x) = 13

What is the value of A?

Jeremy bought an aquarium for him bedroom. The aquarium is a right rectangular prism 50 cm long, 25.4 cm wide, and 56 cm deep. He wants to fill 3/4 of the aquarium with water. What volume of water should Jeremy put into the aquarium?

A trainer gives his horse, Caballo, 7 gallons of water every day from a 57 - gallon container. How many days will Caballo receive his full portion of water from the container?

A quarter has a diameter of approximately 24 millimeters. What is the area of the quarter? Approximate Π as 3.14.

There are usually 30 students in my science class 1/5 of the students are absent today how many students were in my class today

What is the value of the expression 27-24/b when b=8

A submarine's elevation changes - 657 feet over a period of 6 minutes. If the submarine descended at a constant rate, what is the approximate elevation change per minute? -130 feet -90 feet -120 feet -110 feet

A backpack regularly Price for $120 was marked down to $84. What was the backpack's percent of discount?

The 2000 population of a city was 724 ,000 and was increasing at the rate of 1.46 % each year. At that rate, when will the population be 1 million? The 2000 population of a city was 724 ,000 and was increasing at the rate of 1.46 % each year.

Emma is training for a 10 kilometer race. She wants to beat her last 10 kilometer time, which was 1 hour 10 minutes Emma has already run for 55 minutes.

The perimeter of a rectangular painting is 264 centimeters. If the width of the painting is 55 centimeters, what is it's len?