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Serggg [28]
3 years ago
9

Find the perimeter

Mathematics
1 answer:
MAXImum [283]3 years ago
5 0

Answer:

  5 + 8 + 11 + 10 = 34

Step-by-step explanation:

The lengths of the horizontal and vertical sides are easily determined. The slant side is seen to be the hypotenuse of a 3-4-5 triangle (times 2), so is 10 units long. The perimeter is the sum of the side lengths:

  5 + 8 + 11 + 10 = 34

_____

You can always estimate the length of the hypotenuse of a right triangle as being between 1 and 1.5 times the length of the <em>longest</em> side. Here, the longest side of the right triangle whose hypotenuse is of interest is 8 units, so the hypotenuse will be between 8 and 12 units long. That means the perimeter of the blue trapezoid will be between 32 and 36, a guess of sufficient accuracy to allow you to choose the correct answer.

In a figure like this, you can also measure the hypotenuse on the grid. Using a compass, ruler, or a piece of paper with a couple of marks, you can rotate the slant length so that it corresponds to a vertical or horizontal grid line. Then the length of it is easily estimated to good accuracy. (See the second attachment.) As we said in the previous paragraph, even poor accuracy is sufficient to choose the correct answer.

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Find the volume of the figure. Use 3.14 for Pi​
nydimaria [60]

Answer:

The answer would be 17

Step-by-step explanation:

The answer would be 17 because if you add 12 plus 5 That would be your answer

6 0
3 years ago
Seven customers enter a clothing store and are observed to determine if they will make a purchase. The store owner states that t
blondinia [14]

Answer: Mean = 5.25

Variance = 1.3125

Standard deviation = 1.456

Step-by-step explanation:

The mean and variance of a binomial distribution with parameters n (number of trials) and p ( the probability of getting success in each trial) is given by :-

\text{Mean}=np\\\\\text{Variance}=np(1-p)

Given : The total number of enter a clothing store : n=7

The probability of a customer making a purchase= 0.75

Now,

\text{Mean}=7(0.75)=5.25\\\\\text{Variance}=7(0.75)(0.25)=1.3125\\\\\Rightarrow\ \text{Standard deviation}=\sqrt{1.3125}=1.14564392374\approx1.1456

3 0
3 years ago
Evaluate 6j+23+kl−3, when j=3, k=7, and l=33.
Dmitry [639]

Answer:

269

Step-by-step explanation:

6(3)+23+(7)(33)-3

 \/              \/

18 + 23 + 231 - 3 = 269


3 0
3 years ago
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Colt1911 [192]

Answer: B

Step-by-step explanation:

An individual's effective tax rate is the average tax rate.

7 0
3 years ago
1/7 divided by 20/21
Sedbober [7]

Answer: 3/20

Step-by-step explanation: (1/7) :(20/21) = (1/7 )· 21/20 = 21/(7·20)= 3/20

7 0
3 years ago
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