Steps:
1. calculate the values of y at x=0,1,2. using y=5-x^2
2. calculate the areas of trapezoids (Bottom+Top)/2*height
3. add the areas.
1.
x=0, y=5-0^2=5
x=1, y=5-1^2=4
x=2, y=5-2^2=1
2.
Area of trapezoid 1 = (5+4)/2*1=4.5
Area of trapezoid 2 = (4+1)/2*1=2.5
Total area of both trapezoids = (4.5+2.5) = 7
Exact area by integration:
integral of (5-x^2)dx from 0 to 2
=[5x-x^3/3] from 0 to 2
=[5(2-0)-(2^3-0^3)/3]
=10-8/3
=22/3
=7 1/3, slight greater than the estimation by trapezoids.
Answer:
The amount is $155.89
Step-by-step explanation:
To find the cost of the meal, find the tax and tip. You can find each by multiplying the amount of the meal by the percentages.
$119 * 9% = 10.71
$119 * 22% = 26.18
Now we can add all three together.
119 + 10.71 + 26.18 = 155.89
Answer:
4√(5) i
Step-by-step explanation:
√(-80) = √(80)i
=√(16) √(5) i
= 4√(5) i
where the operator i = √-1
Answer:
25 and 100
Step-by-step explanation:
Answer:
Ok I got it it’s 50
Step-by-step explanation:
because To divide by
1
5
, multiply by its reciprocal, 5.
10÷
1
5
= 105
= 50
