Answer:
13x² - 4x
Step-by-step explanation:
3x + 4x² - 7x + 9x² ← collect like terms
= (4x² + 9x² ) + (3x - 7x)
= 13x² + (- 4x)
= 13x² - 4x
8
area of a triangle= b x h x 1/2 or b x h /2
the base is 4 and the height is 4
4x4/2
=16/2
=8
y-values of sampled wave:
0, 5, 5, -3, -5, -3, 2, 0, 0, -1, -2, 1, 1, -1, -1, -2, 2, 3, -1
My teacher told me to put a dot on very cross or intersection that the line is on.
Ben
Ben filled
Which is 1 minute and 25 seconds
Corrine filled
Which is 1.125 so about 1 minute and 13 seconds