7x² - 21x

Use distributive property

Can someone show me step by step 9:858

Why is the middle term 2ab in (a+b) ^2 and - 2ab in (a-b) ^2 when written in standard form

The area of a triangular neon billboard advertising the local mall is 175 square feet. The base of the triangle is 5 feet longer than triple the length of the altitude. What are the dimensions of the triangular billboard in feet?

X = y - (50/y), where x and y are both > 0 If the value of y is doubled in the equation above, the value of x will a. decrease b. stay the same c. increase four fold d. double e. increase to more than double

At the popular restaurant Fire Wok, 55%, percent of guests order the signature dish. What fraction of guests order the signature dish?

A taxi cab costs $1.75 for the first mile and $0.75 for each additional mile. You have $20 to spend on your ride. Which inequality could be solved to find how many miles you can travel, if n is the number of additional miles? A 1.75n + 0.75 ≤ 20 B 1.

What side lengths do the area models of 45 and 60 have in common?

An exterior angle can be found through the use of complementary angles. True or false

6. What is the domain and range of the given set? ((-3,9), (2,5), (-1,-1), (0,5), (-6,9) }

3. Find mZBDC (-3x + 20° 5 (-2x + 55) a. 290 b. 61° c. 25° d. 750