The arrows should start at zero because then the expression wouldn't be true. She should have made 5 groups if she had started at zero.
Sarah rolled a one 3 times and rolled a three 1 time in a total of 20 rolls. She rolled one or three 4 times out of 20. Therefore,
The answer is
A.
Each roast is 7.9 lbs so you multiply that by 3.
7.9x3=23.7
now add 1.4
23.7+1.4=25.1
the round of beef weighed 25.1 pounds
I think you meant to say the equation is
y = 2x² - 2x + 3
Differentiate both sides with respect to x :
dy/dx = 4x - 2
At the point (3, 0), the slope of the tangent line is dy/dx(3) = 4•3 - 2 = 10. Then the normal line to the curve at (3, 0) has slope -1/10.
Using the point-slope formula, the equation of the normal line is
y - 0 = -1/10 (x - 3) ⇒ y = (3 - x)/10
