They cancel each other out because one is + and the other is -.
Answer:
44
Step-by-step explanation:
substitute k = 1, 2, 3, 4 into 2k² - 4 and sum the terms
k = 1 : 2(1)² - 4 = 2 - 4 = - 2
k = 2 : 2(2)² - 4 = 8 - 4 = 4
k = 3 : 2(3)² - 4 = 18 - 4 = 14
k = 4 : 2(4)² - 4 = 32 - 4 = 28
sum = - 2 + 4 + 14 + 28 = 44
Answer:
The answer is B.
Step-by-step explanation:
some of the y values are paired with two x-values.
Slope intercept form is the following: y=mx+b, m = slope, and b = y-intercept. Following this, the equation of the line should be: y = -2x + -3 Hope this helps :)
262,144 feet squared
This seems like a big number but area length times width. If the coaster is square then all sides are the same so the length and width are both 512 feet. This means you multiply 512 and 512. With that you get 262,144 feet squared.
