Write the quadratic equation in standard form. What is the value of b2 - 4ac? 1 = 2x2 + 5x?

Convert 9.5 x 105 to ordinary form.

Find the area under the standard normal curve between z = - 2.57 and z = 1.27. Round your answer to four decimal places, if necessary.

XYZ and WYZ are non overlapping angles that share a ray and form XYZ. WYZ has a measure of 32"". XYW has a measure of 112*. What is the measure of XYZ?

Which pair of equations represents two perpendicular lines? Option A: - 3x + 2y = 10 and 3y = 2x + 12 Option B: 2x + 5y = 45 and y + 2/5x = - 9 Option C: x = 4y + 4 and x + 4y=4 Option D: 7x + 4y = 20 and y-3=4/7x

How do you solve 5+y=7

How many cubic blocks of side length 1/7 inch would it take to fill a cube with a side length of 3/7 inch?

Write a world problem that can be solved by drawing an array. then draw the array and solve the problem

If I Have 55, then times that by three then divide it by 9, then add 16, What Is My Answer?

Cheese sticks that were previously priced at "5 for $1" are now "4 for $1". Find the percent increase in the price per cheese stick.

True or false: A triangle can be drawn with an angle of 60, 60 and 70