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4 years ago

Can someone please help me with A,B,C and D?

Mathematics

1 answer:

satela [25.4K]4 years ago

5 0

Answer: Least value: 15 Greatest value: 30

Median:21, it's in the center of the box plot,

upper quartile: 17 lower quartile:27

IQR: 10

Step-by-step explanation

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At a currency exchange, 11 U.S. dollars can be exchanged for 10 Euros. How many U.S. dollars will you receive for 1 Euro?

Slav-nsk [51]

Answer:

$1.22096

Step-by-step exanation:

3 0

3 years ago

On January 22 in 1943, the town of Spearfish, South Dakota, set the record for the world’s fastest temperature change.

Galina-37 [17]

Answer:

-29

I got this by doing:

-4 + 54 = -58 ÷ 2 = -29

3 0

2 years ago

Read 2 more answers

Please help me If 180°<α<270°, cos⁡ α=−8/17, what is sin -α?

rewona [7]

Starting from the fundamental trigonometric equation, we have

$\cos^2(\alpha)+\sin^2(\alpha)=1 \iff \sin(\alpha)=\pm\sqrt{1-\cos^2(\alpha)}$

Since $180$ , we know that the angle lies in the third quadrant, where both sine and cosine are negative. So, in this specific case, we have

$\sin(\alpha)=-\sqrt{1-\cos^2(\alpha)}$

Plugging the numbers, we have

$\sin(\alpha)=-\sqrt{1-\dfrac{64}{289}}=-\sqrt{\dfrac{225}{289}}=-\dfrac{15}{17}$

Now, just recall that

$\sin(-\alpha)=-\sin(\alpha)$

to deduce

$\sin(-\alpha)=-\sin(\alpha)=-\left(-\dfrac{15}{17}\right)=\dfrac{15}{17}$

6 0

3 years ago

Read 2 more answers

What is the value of x? Enter your answer in the box. °

Gnom [1K]

Answer:

The answer to your question is: 111°

Step-by-step explanation:

The sum of the interior angles of a polygon is (n - 2) 180°

This polygon has 7 sides

Then n = 7

Process

120 + 158 + 126 + 125 + 121 + 139 + x = (7 - 2)180

120 + 158 + 126 + 125 + 121 + 139 + x = 5(180)

789 + x = 900

x = 900 -789

x = 111°

5 0

3 years ago

vDetermine if a Poisson experiment is described, and select the best answer: Suppose we knew that the average number of typos in

goldenfox [79]

Answer:

probability that a randomly selected page that contains only text will contain no typos that is

P(x=0) = $e^{-0.08}$ = 0.923

Step-by-step explanation:

Poisson distribution:-

Explanation of the Poisson distribution :-

The Poisson distribution can be derived as a limiting case of the binomial

distribution under the conditions that

i) p is very small

ii) n is very large

ii) λ = np (say finite

The probability of 'r' successes = $\frac{e^{-\alpha }\alpha^r }{r!}$

Given the average number of typos ∝ = 0.08 per page.

probability that a randomly selected page that contains only text will contain no typos that is = $p(x=0) = \frac{e^{-0.08 }\(-0.08)^0 }{0!}$

After calculation P(x=0) = $e^{-0.08}$ = 0.923

probability that a randomly selected page that contains only text will contain no typos =0.923

5 0

3 years ago