If the sum of a number and nine is tripled the results is seven less than twice the number. find the number

Calculate the discriminant to determine the number of real roots. Y=x^2+3x+9 How many real roots does the equation have? A) no real roots B) no solution to the equation C) one real root D) two real roots

During the summer months, science center tickets are 3 for $36.75 and zoo tickets are 4 for $51.00. How much will a group of 12 students save by choosing the science center

The sum of three numbers is 78. The second number is 2 times the third. The third number is 6 more than the first. What are the numbers?

What is the difference between dividing 16 by 2 and finding the square root of 16?

Round the mixed number to the nearest 1/2. 4 8/9 A. 4 B. 4 1/2 C. 5

Serial numbers for a product are to be made using 4 letters followed by 2 digits. The letters are to be taken from the first 6 letters of the alphabet, with no repeats. The digits are taken from the 10 digits 0, 1, 2, ..., 9, with no repeats.

What is 32.44:4.36 to the whole number

How to work this problem 28 = - 2 - 5x

The distance between Earth and the moon is 384,000 kilometers. Express this in scientific notation.

Given the recursive formula for a geometric sequence find the common ratio, the first four terms, and the explicit formula. a1 = - 3 an = - 3an-1