1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
marissa [1.9K]
2 years ago
7

Please someone help me

Mathematics
1 answer:
nevsk [136]2 years ago
3 0

Answer:

C) <BAC ≈ <QPR and BC ≈ QR

Step-by-step explanation:

C) <BAC ≈ <QPR and BC ≈ QR

You might be interested in
If we sample from a small finite population without​ replacement, the binomial distribution should not be used because the event
seropon [69]

Answer:

5/4324 = 0.001156337

Step-by-step explanation:

To better understand the hyper-geometric distribution consider the following example:

There are 100 senators in the US Congress, and suppose 60 of them are republicans  so 100 - 60 = 40 are democrats).

We extract a random sample of 30 senators and we want to answer this question:

What is the probability that 10 senators in the sample are republicans (and of course, 30 - 10 = 20 democrats)?

The answer using the h-g distribution is:

\large \frac{\binom{60}{10}\binom{100-60}{30-10}}{\binom{100}{30}}=\frac{\binom{60}{10}\binom{40}{20}}{\binom{100}{30}}

Now, imagine there are 56 senators (56 lottery numbers), 6 are republicans (6 winning numbers and 50 losers), we extract a sample of 6 senators (the bettor selects 6 numbers). What is the probability that 4 senators are republicans? (What is the probability that 4 numbers are winners?).

<em>As we see, the situation is exactly the same,</em> but changing the numbers. So the answer would be

\large \frac{\binom{6}{4}\binom{56-6}{6-4}}{\binom{56}{6}}=\frac{\binom{6}{4}\binom{50}{2}}{\binom{56}{6}}

Now compute each combination separately:

\large \binom{6}{4}=\frac{6!}{4!2!}=15\\\\\binom{50}{2}=\frac{50!}{2!48!}=1225\\\\\binom{50}{6}=\frac{50!}{6!44!}=15890700

and now replace the values:

\large \frac{\binom{6}{4}\binom{50}{2}}{\binom{56}{6}}=\frac{15*1225}{15890700}=\frac{18375}{15890700}=\frac{5}{4324}

and that is it.

If the decimal expression is preferred then divide the fractions to get 0.001156337

6 0
3 years ago
----- is 10 times as much as 53
Kobotan [32]

Answer:

I think it's right answer is 530

4 0
2 years ago
Please answer as many as you can.
dimaraw [331]

Answer: okay so your problems are like 10000000k through  out resons of dum. so x=-1. is a little wrong becayse the x = into a 1 so  you make the 1 that factor. so thats why answer for 2.5

Step-by-step explanation:

6 0
3 years ago
Which number sequence follows the rule multiply by 3, starting from 4?
mixas84 [53]
Answer

12, 36, 108, 324
3 0
3 years ago
R varies inversely as v2 if r=120 when v=1 ,find r when v=10
makvit [3.9K]
<h3>♫ - - - - - - - - - - - - - - - ~Hello There!~ - - - - - - - - - - - - - - - ♫</h3>

➷ r = k/v^2

Substitute the values in:

120 = k/1^2

Multiply both sides by 1^2 to find k

k = 120

Substitute new values in:

r = 120/10^2

Solve:

r = 1.2

<h3><u>✽</u></h3>

➶ Hope This Helps You!

➶ Good Luck (:

➶ Have A Great Day ^-^

↬ ʜᴀɴɴᴀʜ ♡

6 0
3 years ago
Other questions:
  • What is another word for zero
    9·1 answer
  • A penny is dropped from the roof of a building 265 feet above the ground. The height h (in feet) of the penny is a function of t
    13·1 answer
  • Question 7
    5·1 answer
  • Which fraction has a value that's equal to 3∕4?
    6·2 answers
  • What is -4 divided by -0.2?
    13·1 answer
  • \begin{aligned} &amp; 2x+7y = 3 \\\\ &amp; x=-4y \end{aligned}
    12·1 answer
  • What is the volume of the prism?<br> in.3.<br>I need help​
    14·2 answers
  • Find the area of quadrilateral ABCD. [Hint: the diagonal divides the quadrilateral into two triangles.]
    5·1 answer
  • WILL MAKE BRIANLIEST. use each of the digits 0 to 9 once to form two mixed numbers with a sum of 100
    13·2 answers
  • Need help with a,b,c please
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!