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3 years ago

Please help my exam is going on please and both question of math

Mathematics

1 answer:

omeli [17]3 years ago

5 0

Step-by-step explanation:

11) PnQ=QnP

or, {1,2,3}n{1,2,3,4,5} = {1,2,3,4,5} n{1,2,3}

or, {1,2,3} = {1,2,3} .Ans

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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?

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

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3 years ago

How can we use a distributive property by a CALCULATOR

nika2105 [10]

You can't use distributive property by a calculator

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3 years ago

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The angle is 1/5 of the circle. what is the measure of the angle?

LenKa [72]

360 degrees in a circle divided by 5 is 72

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3 years ago

Please help quickly

Airida [17]

Answer:

m∠PQR = 133

Step-by-step explanation:

∠PQR and ∠RQS are supplementary angles, meaning they have a sum of 180°.

3x - 5 + x + 1 = 180

4x - 4 = 180

4x = 184

x = 46

Now we simply substitute 46 in for x:

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3 years ago

Calculate this product to help you solve the problem

saveliy_v [14]

Answer:

Step-by-step explanation:

We don't actually know the variable A and we don't have a final product to help us solve it, so the best we can do is make 7 a coefficient to the variable A, making the answer 7a.

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3 years ago

Please help my exam is going on please and both question of math​

Please help my exam is going on please and both question of math