Solve each quadratic equation by the square root method.

X^2+2x-3=0

Evan is training for a race on saturday. he wants to run a total of 12 miles total for the week before the race. on monday he ran 3 miles, on tuesday he ran 5 miles, he took wednesday and friday off.

The formula for the surface area of a cylinder is SA = 2 pi r (h + r). What is the surface area of a cylinder when r = 3 centimetres and h = 4 centemeters?

Kendra just bought a new house and needs to buy a new sod for her backyard. if the dimensions of her yard are 24.6 feet by 14.8 feet, what is the area of her yard?

Which of the following is not true? a. in order for a+bi to be a complex number, b must be nonzero

The mean score of a competency test is 65, with a standard deviation of 4. use the empirical rule to find the percentage of scores between 53 and 77. (assume the data set has a bell-shaped distribution.)

Bob leaves to see a movie at 11:53 P. M. the movie lasted 3 hours and 40 minutes. What time did the movie end at?

There are 5 red marbles, 8 blue marbles, and 12 green marbles in a bag. Several trials are performed with the results shown in the table.

Round 128 to the nearest hundred

Dimitri wants to tip 20% on a restaurant bill that is $35.40. how much money should dimitri leave for the tip

The radius of a circular rug is 30 inches. What is the approximate circumference, in inches, of this rug?