Area of a trapezoid is height times the average of the bases,
A= 1/2 h (a + b)
Here we have height h=12 and bases a=30, b=12 so area
A = (1/2) (12) (30 + 12) = 6(42)= 252
Answer: B
Answer:
$82
Step-by-step explanation:
15% = $12.30
5% = $4.10 (divide both sides by 3)
100% = $82 (times both sides by 20 to get to 100% - original price)
Answer:
Yes, the point is a solution.
Step-by-step explanation:
A system of inequalities displayed on a graph has two shaded regions, and for this example, one is red and the other is blue. The region that contains all the solutions to the system of inequalities is where the two regions intersect to usually form a new color, which in this case is purple. We can see that the point (2,2) is located within the purple region, so therefore, yes, the point is a solution.
Check the picture attached.
Let m(BAE)=m(ACD)=α
(BAE and ACD are congruent, since they are alternate interior angles, or Z angles)
Let m(ABE)=β.
So in triangle ABE, the measures of the angles are 90, α and β degrees.
This means that m(BCE)=β, since the 2 other angles of triangle BCE are 90 and α degrees.
thus, we have the similarity of triangles ABE and BCE,
so the following rations are equal:

so

so



(inches)
Remark, we can also apply Euclid's theorem directly.
Probbality=desired outcomes/total possible outcomes
so you and 2 friends makes 3 people
you each order a differnt topping
so
7/14 or 1/2 of them are meat on first try
then, 1 less topping, so 6/14 or 3/7 are meat for 2nd peson
then 1 less topping so 5/14 are meat for 3rd person
1/2 times 3/7 times 5/14=15/196
probablity will be 15/196 or about 7.65%