Please answer this question (picture)

ValentinkaMS [17]

Answer:

300

Step-by-step explanation:

The rectangles area is 200. (20*10) (though it might be 10*10 because 20 could be the length for it over all but there is the 10 for the triangles side so I think it's just 20).

The triangles area is 100. (1/2*10*20).

3 0

2 years ago

I tried to do it and I don’t understand??

vlada-n [284]

Answer:

Perimeter = 46.6 m

Area = 78.36 m²

Step-by-step explanation:

Perimeter is just the outsides, so add 3.7 + 12.3 + 4.5 +11 AND the sides you aren't given. To find them, you do 11-3.7 = 7.3 and 12.3-4.5 = 7.8. So you add 3.7 + 12.3 + 4.5 + 11 + 7.3 + 7.8 = 46.6

Area is the inside, so you multiply length by width. You can split it different ways, but I multiplied by 3.7*12.3 first, giving 45.51. Now to find the area of the other box, you need to subtract 11 by 3.7, which we saw was 7.3. Now we can multiply 7.3 by 4.5, which is 32.85. Then you add 45.51 and 32.85 to get 78.36.

3 0

1 year ago

If line tw is parallel to line SX , m ? 1 = 59 , and m ? 6 = 72?, what is m ? 8?

zubka84 [21]

I'm guessing 1 and 4, but I'm not sure.

8 0

3 years ago

Can someone help me with this? Please-

lozanna [386]

Answer:

C

Step-by-step explanation:

8 0

2 years ago

In one year, three awards (research, teaching, and service) are given to a class of 25 graduate students in a statistics departm

allochka39001 [22]

Answer:

13,800

Step-by-step explanation:

This is a permutation, not a combination, because order matters.

Here's why:

Arbitrarily, let's say that the three students chosen for the award are Abby, Bob, and Charlie. The order of which each award is given to the three of them matters, because otherwise they would be receiving different awards. For example, if Abby gets the research award, Bob gets the teaching award, and Charlie gets the service award, this would be notably different than if Abby got the teaching award, Bob got the service award, and Charlie got the research award.

Therefore, for the first award, we have 25 people to choose from. After we select that person, we have 24 people to choose from, since the problem stipulates that each student can receive at most one award. Then 23, and so on.

Since we're choosing three people to give awards to, there are:

$25\cdot 24\cdot 23=\boxed{13,800}$ permutations. Because order matters (refer to explanation above), this is our final answer.

3 0

2 years ago