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lubasha [3.4K]
3 years ago
6

What is the point of a pythagorean theorem?

Mathematics
1 answer:
Nikitich [7]3 years ago
3 0

The Pythagorean Theorem describes an important geometric relationship between the three sides of a right triangle.

First of all, to understand the Pythagorean Theorem, you need to know about angles and triangles, and you also need to know about exponents and square roots. These things will help you understand how it works and how to solve for a missing side.

The Pythagorean Theorem

For a right triangle

with legs a and b and the hypotenuse c

a^{2} + b^{2} = c^{2}

The Pythagorean Theorem does not apply to all triangles.

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A window has a length of 45 inches and a diagonal of 53 inches. what is the width of the window?
Lyrx [107]
The answer is 28 because you would use Pythagorean theorem
7 0
3 years ago
Mo travels 30 miles in 45
Burka [1]

Answer:

38.4 miles per hour

Step-by-step explanation:

30 miles in 45 minutes

18 miles in 30 minutes

Average speed =   total distance / total time

                          =    (30+18) / ( 45 min + 30 min)

                          = 48 miles / ( 1.25 hr ) = 38.4 miles per hour

7 0
2 years ago
A nutrition laboratory tested 25 "reduced sodium" hotdogs of a certain brand, finding that the mean sodium content is 310 mg wit
inessss [21]

Answer:

The  95% confidence interval is  295.9 < \mu< 324.1

A   95% level of confidence mean that there is 95%  chance  that the true population mean will be in this interval

Step-by-step explanation:

From the question we are told that

    The sample size is  n  =  25

    The mean is  \= x  =  310 \ mg

     The standard deviation is  \sigma =  36 \ mg

Given that the confidence level is  95% then the level of significance is mathematically represented as

           \alpha  =  100 - 95

=>        \alpha  =  5\%

=>        \alpha  =  0.05

Next we obtain the critical value of  \frac{\alpha }{2} from the normal distribution table , the value is  

           Z_{\frac{\alpha }{2} } =Z_{\frac{0.05 }{2} }  =  1.96

Generally the margin of error is mathematically represented as

        E =  Z_{\frac{\alpha }{2} } *  \frac{\sigma }{\sqrt{n} }

substituting values

        E =  1.96 *  \frac{36 }{\sqrt{25} }

        E = 14.1

The 95% level of confidence interval  is mathematically represented as

      \= x - E < \mu

substituting values

     310- 14.1 < \mu< 310+ 14.1

     295.9 < \mu< 324.1

The  95% level of confidence mean that there is 95%  chance  that the true population mean will be in this interval

6 0
3 years ago
What's the complex conjugate of 13-21i
Lubov Fominskaja [6]
The complex conjugate of 13-21i is 1.3+ 2i.

In general the conjugate of a+bi is a - bi
and the conjugate of a-bi is a + bi

3 0
3 years ago
What should be added to -7/9 to get 5?
liraira [26]
Let the number that wll be added be x, then
-7/9 + x = 5
x = 5 + 7/9 = 5 7/9 or 52/9
8 0
3 years ago
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