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sineoko [7]
3 years ago
15

Another area and perimeter question!!! Pls helppppp

Mathematics
1 answer:
SIZIF [17.4K]3 years ago
5 0

Answer:

D. 62 inches

Step-by-step explanation:

the object is symmetrical across z, so the lengths on the other side will be the same as x and y

the perimeter would just be 2x + 2y = 2(12) + 2(19) = 62 inches

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Natalie is playing a game using a fair coin. Contestants win the game if the fair coin lands tails up. The theoretical proabaili
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The theoretical probability of landing on tails is P = 0.5, and out of the 250 contestants, around 125 will win the game.

<h3>About how many contestants will win?</h3>

The coin has two possible outcomes, so if it is a fair coin, the probability for each of the outcomes will be 0.5 (this is the theoretical probability for a fair coin, where all the outcomes have the same probability).

Now, we know that a person wins if the coin lands tails up, and the probability of landing on tails is 0.5

Then, for a sample N, we can expect that about 0.5*N of the participants win.

In this case, the sample is 250, then we can expect that:

0.5*250 = 125

Around 125 of the contestants win the game

If you want to learn more about probability, you can read:

brainly.com/question/251701

8 0
2 years ago
to figure out how many hours it will take to drive from his home to his's cousin's house,a student divides 289 by 60 and estimat
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This would be considered a reasonable estimate because if you were to use estimation, you can round 289 to the nearest hundred (300), which is divisible by 60.  When dividing 300 / 60, you will get 5 hours, which is 0.5 greater than 4.5 therefore making it a reasonable estimate.  In addition, when actually dividing 289 / 60, you will get approximately 4.8 hours, which is close to the estimate, 4.5 hours.
7 0
3 years ago
2x-9 x=3 ..............................
WINSTONCH [101]

Answer:

3

Step-by-step explanation:

g

4 0
3 years ago
Read 2 more answers
If we change one side of a square by factor of 5, of 0.5, of 12 and of 1 12 , by what factor will the perimeter change?
ICE Princess25 [194]
The perimeter will change by the same factor  Answer
7 0
3 years ago
Frank and Gregory leave Centreville traveling in opposite directions on a straight road. Gregory drives 22 miles per hour faster
Flauer [41]

Answer:

<h2>Frank speed = 37mi/h</h2><h2>Gregory speed = 59mi/hr</h2>

Step-by-step explanation:

Let the speed of Frank be x and speed of Gregory be y. If Gregory drives 22 miles per hour faster than Frank, then y = 22+x. SInce they they are 216miles apart after 2.25 hours,

Speed = Distance/Time

Total time travelled by them = 2.25hours

Total distance = 216 hours

Total speed = x+y = x+22+x

Substituting this parameters into the formula given to get x we will have;

x+22+x = 216/2.25

2x+22 = 96

2x = 96-22

2x = 74

x = 74/2

x = 37

<em>Hence the speed of Frank is 37miles per hour while that of gregory is 37+22 = 59miles/hour</em>

5 0
3 years ago
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