Why is it not possible to form a right triangle

with the lengths 2, 4 and 7?

Classify the triangle by its angles. 54°, 36°, 90° Acute Right Obtuse

Solve the equation f - (-4) = 12

For the function w, w (9) = - 7, and w (-7) = 9. If y=w (x), what is the value of y when x=-7?

The club received good prices for the ingredients from the local stores, so each serving of nachos costs them only $0.50. The members plan to sell each serving of nachos for $1.25. What percent markup is in this price?

Let f (x) = 25x2-2. The function g (x) is a vertical stretch of f (x) by a factor of 2. What is the equation of g (x) ?

Three consecutive integers have a sum of 45. Find the integers.

Find x in the equation x² - 7 = 4x + 5

What is the difference? 1/6 - 5/8 a. - 19/24 b. - 11/24 c. 11/24 d. 2

What is the mode of this data set? 41, 43, 45, 3, 11, 23, 24, 27, 29, 45, 12, 19, 22, 49, 25

The price of a book is $35.85 the sales tax is 6.5% how much is the sales tax to the nearest cent what is the total cost of the book?