-3x + 20 > = 8
-3x > = 8 - 20
-3x > = -12
x < = -12/-3
x < = 4
( - infinity, 4] <== interval notation
Answer:
is the answer
Step-by-step explanation:
Answer: Each ice cream with out fudge or sprinkles is 5$
Step-by-step explanation:
5 x 5 = 25
2 x 5 = 10
25 + 10 = 35
= $5 per regular ice cream
"Circumscribed rectangles" means that any Riemann Sum (left or right) must overestimate the area under the curve. So, a Right-Riemann sum would underestimate the area under the curve, and that's where you made your mistake. You will use the Left-Riemann Sum to approximate the area under the curve r(t) = tan(cos(xt) + 0.5) + 2
Or, you could use u-substitution to get the <em>exact</em> area under the curve from [0, 12] - but I would do as the problem says. If you want me to that, DM me.
