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PilotLPTM [1.2K]
3 years ago
15

A triangle with a height of 12

Mathematics
1 answer:
mezya [45]3 years ago
6 0

Answer: 7 Inches

Step-by-step explanation:

From the above question, we were provided with the height of the triangle which is 12 Inches and the subsequent area which is 42, and the question was to find the base of the triangle. One of the formula for the area of a triangle is the:1/2(b*h).

From here,we substitute h for the value 12 and we will have 1/2(b*12)=84.Cross multiply and we have something looking like this:12b=84,then divide both sides by 12 and we have our answer as 7 inches.

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Find the values of x and y
Schach [20]

Answer:

x = 12; y = 60

Step-by-step explanation:

The opposite sides of a parallelogram are always equal, so x+3 = 15, making x = 12

The opposite angles of a parallelogram are always equal, making y = 60

3 0
3 years ago
Does a triangle with side lengths 7, StartRoot 80 EndRoot, and StartRoot 31 EndRoot from a right triangle?
AlladinOne [14]

Answer and Step-by-step explanation:

The sides we have are 7, \sqrt{80} , and \sqrt{31} .

The square root of 80 is less than 9 but greater than 8 (because 8^2 is 64, 9^2 is 81, and 80 is in between those two values), and the square root of 31 is definitely less than the square root of 80.

So, \sqrt{80} is the longest side.

1) The square of \sqrt{80} is: (\sqrt{80} )^2=80

2) The sum of the squares of the two shorter sides is:

7^2+(\sqrt{31} )^2=49+31=80

3) Since the square of the longest side is equal to the sum of the squares of the two shorter sides, by the Pythagorean Theorem, the triangle is a right triangles.

Hope this helps!

4 0
3 years ago
Read 2 more answers
I find this question very confusing.
umka21 [38]
The answer is 43.7, just plug the given information into the given equation
4 0
3 years ago
Read 2 more answers
SUPER URGENT: Find secθ.
lorasvet [3.4K]

Answer:

B

Step-by-step explanation:

√((-20)²+21²)=√(400+441)=√841=29

cos θ=-20/29

sec θ=-29/20

6 0
3 years ago
The FBI wants to determine the effectiveness of their 10 Most Wanted list. To do so, they need to find out the fraction of peopl
koban [17]

Answer:

<em>98% of confidence intervals for the Population proportion of people who captured after appearing on the 10 most wanted list</em>

(0.3583 , 0.4579)

Step-by-step explanation:

<u>Explanation</u>:-

<em>Given sample size 'n' = 517</em>

Given data Suppose a sample of 517 suspected criminals is drawn. Of these people, 211 were captured.

'x' =211

<em>The sample proportion</em>

                                   p^{-}  = \frac{x}{n} = \frac{211}{517} =0.4081

                                  q^{-} = 1-p^{-} = 1- 0.4081 = 0.5919

<em>98% of confidence intervals for the Population proportion of people who captured after appearing on the 10 most wanted list</em>

(p^{-}  - Z_{\frac{\alpha }{2}  } \sqrt{\frac{p^{-} (1-p^{-} )}{n} } , p^{-} + Z_{\frac{\alpha }{2} } \sqrt{\frac{p^{-} (1-p^{-} }{n} } )

(0.4081  - 2.326   \sqrt{\frac{0.4081 (0.5919 )}{517} } , 0.4081+ 2.326\sqrt{\frac{0.4081(0.5919 }{517} } )

(0.4081-0.0498 , 0.4081 +0.0498)

(0.3583 , 0.4579)

<u><em>Conclusion</em></u>:-

<em>98% of confidence intervals for the Population proportion of people who captured after appearing on the 10 most wanted list</em>

(0.3583 , 0.4579)

7 0
4 years ago
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