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Delvig [45]
4 years ago
13

What the answer guys?

Mathematics
1 answer:
Inga [223]4 years ago
3 0

I dont understand what you mean by whats the answer. please if you can kindly place a question, then maybe i will be able to help you. please and thank you.

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You have a bag that contains 20 quarters, 20 dimes, and 15 nickels. When randomly selecting two coins with no replacement find t
iogann1982 [59]

Answer:

P(2 quarters) = 19/ (13*16) = 19/208  = 0.0913

Step-by-step explanation:

probability of getting 2 quarters?

ok

first draw:  there are 20 quarters to choose from

second draw: there are 19 quarters left to choose

so Total coins are 65 coins

P(2 quarters) = P( 1st quarter)* P(2nd quarter)

P(2 quarters) =  20/65   *   (19/64)

P(2 quarters) = 4/13 *  19/64

P(2 quarters) = 19/ (13*16) = 19/208

4 0
3 years ago
Use the figure below, If m
soldier1979 [14.2K]

Answer:

m anglw ABD answers is 50 degree

8 0
3 years ago
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in a class of 20, 5 students prefer sprite and 15 students prefer coca cola. what percent of the students prefer sprite?
Mars2501 [29]

Answer:

25%

Step-by-step explanation:

if you multiply 20 by five you get 100. That is the easiest way to find a percent. Then you multiply the five by five and you get 25/100 or 25%

8 0
4 years ago
Find sin(x/2), cos(x/2), and tan(x/2) from the given information.
Nimfa-mama [501]

The values of sin (x/2) = 4/√17,   cos (x/2) = 1/√17 and  tan (x/2) = 4.

<h3>What is Trigonometry?</h3>

Trigonometric ratios are the ratios of the length of sides of a triangle. These ratios in trigonometry relate the ratio of sides of a right triangle to the respective angle.

Here, cos x = -15/17  (given)

we know, cos x = 2cos²x/2 - 1

                cos²(x/2) = (cos x + 1)/2

                  cos²(x/2) = (-15/17 + 1)/2

                 cos²(x/2) = 1/17

                 cos (x/2) = 1/√17

then, sin (x/2) = √(1- cos²(x/2))  

          sin (x/2) = √(1 - 1/17)

          sin (x/2) = √16/17

          sin (x/2) = 4/√17

and tan (x/2) = sin (x/2) / cos (x/2)  

       tan (x/2) = \frac{4/\sqrt{17} }{1/\sqrt{17} }

       tan (x/2) = 4

Thus, the values of sin (x/2) = 4/√17,   cos (x/2) = 1/√17 and  tan (x/2) = 4.

Learn more about Trigonometry from:

brainly.com/question/22698523

#SPJ1

6 0
2 years ago
Can someone please help me with this (a^3-(2*b))*(a^3-(3*b)) equation​
den301095 [7]

Hope the picture will help you...

6 0
2 years ago
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