The diagonals of the parallelogram are AC and BD. The way the diagram is drawn, BD is the long diagonal, said to be 24 inches. AC is the short diagonal, said to be 12 inches.

Since AC bisects BD at point E, point E is the midpoint of BD. That means BE = (24 inches)/2 = 12 inches.

Since BD bisects AC at point E, point E is the midpoint of AC. That means EC = (12 inches)/2 = 6 inches.

Now, we know the lengths of the sides of ΔBEC, so we can find its perimeter. The perimeter of any geometry is the sum of the lengths of its sides.

perimeter ΔBEC = CB +BE +EC

perimeter ΔBEC = 10 in + 12 in + 6 in = 28 in

The perimeter of triangle BEC is 28 inches.

8 0

3 years ago

0.45 0.40 0.11 This question uses the following probability model for the blood type of a randomly chosen person in the United S

poizon [28]

Answer:

$P(O\ or\ A) = 0.85$

Step-by-step explanation:

Given

See attachment

Required

$P(O\ or\ A)$

From the question, we understand that she can only get blood from O or A groups. So, the probability is represented as:

$P(O\ or\ A)$

This is calculated as:

$P(O\ or\ A) = P(O) + P(A)$

Using the American row i.e. the blood must come from an American.

We have:

$P(O) = 0.45$

$P(A) = 0.40$

So, we have:

$P(O\ or\ A) = 0.45 + 0.40$

$P(O\ or\ A) = 0.85$

6 0

3 years ago

If a stadium has 15,000 seats sold at $12.50 each, how much can be made if the stadium sells out?

Sindrei [870]

Answer:

187,500

Step-by-step explanation:

each seat is 12.50$

there are 15,000 seats

so you multiply 12.50$ by 15,000

12.50+15000= 187,500

8 0

2 years ago