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satela [25.4K]
3 years ago
5

Need Help Answer Plz I’m Failing

Mathematics
1 answer:
kirill115 [55]3 years ago
3 0

Answer:

HL Theorem

Step-by-step explanation:

If you look at the graph, the single line on both hypotenuses shows that they are equivalent. The double lines show that the two sides are equal. Because it is given that a hypotenuse and leg are equal, the hypotenuse-leg theorem applies.

If it was two legs instead, it would have been Side-Angle-Side

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what is the surface area of the right rectangular pyramid I don't know how to work these so if someone could help me out please​
lapo4ka [179]

your answer is b hope I am correct

7 0
3 years ago
What is the unit rate of $48 for 3 pairs of shoes?
forsale [732]

Answer:

$16

Step-by-step explanation:

48÷3= $16 per pair of shoe

7 0
3 years ago
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To find the standard deviation of the diameter of wooden​ dowels, the manufacturer measures 19 randomly selected dowels and find
loris [4]

Answer:

Option D -  [0.12

Step-by-step explanation:

Given : The manufacturer measures 19 randomly selected dowels and finds the standard deviation of the sample to be s=0.16.

To find : The​ 95% confidence interval for the population standard deviation sigma?

Solution :

Number of sample n=19

The degree of freedom is Df=n-1=19-1=18

The standard deviation of the sample is s=0.16

Applying chi-square table to find critical value,

Upper critical value of \chi^2 is UC=\chi(\frac{0.05}{2},18) = 31.5264

Lower critical value of \chi^2 is  

LC=\chi(1-\frac{0.05}{2},18) = 8.2307

Lower limit of the 95% confidence interval for the population variance

L=\frac{(df)\times (s^2)}{UC}

L=\frac{18\times (0.16^2)}{31.5264}

L=\frac{18\times0.0256}{31.5264}

L=\frac{0.4608}{31.5264}

L=0.0146

Upper limit of the 95% confidence interval for the population variance

U=\frac{(df)\times(s^2)}{LC}

U=\frac{18\times (0.16^2)}{8.2307}

U=\frac{18\times0.0256}{8.2307}

U=\frac{0.4608}{8.2307}

U=0.0559

So, The 95% confidence interval for the population variance is [0.0146, 0.0560]

Now, The 95% confidence interval for the population standard deviation is

[\sqrt{0.0146}

[0.1208

or  [0.12

Therefore, Option D is correct.

The 95% confidence interval for the population standard deviation is  [0.12

6 0
3 years ago
Find the 15th term of the arithmetic sequence if a1 = -3 and d = 2
pantera1 [17]

Answer:

25

Step-by-step explanation:

a1 = - 3               Given

d = 2                   Given

n = 15                  Given

Formula

tn = a1 + (n - 1) * d

Substitute and solve

t15 = -3 + (15 - 1) * 2               Calculate what's in the brackets.

t15 = -3 + 14*2                        Combne

t15 = -3 + 28                          Add the two terms

t15 = 25


3 0
3 years ago
6/9x45 in simplest form?
Alexxx [7]

Answer:

Step-by-step explanation:

6/9 x 45 = 2/3 x 45 = 30

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2 years ago
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