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densk [106]
3 years ago
5

A multiple-choice question on an economics quiz contains 10 questions with five possible answers each. compute the probability o

f randomly guessing the answers and getting 9 questions correct
Mathematics
1 answer:
Hunter-Best [27]3 years ago
8 0
10C9 * (1/5)^9 * (4/5)^1 = 4.096*10^-6

About 4 chances in 1 million.
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Y+1=-2x-3 in standard form
nignag [31]
Hope this answer is helpful for you

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3 years ago
Which ordered pair is the solution to the system of equations? {x+3y=−12y=13x−6 (−5, −213) (−9, −9) (3, −5) (10, −223)
Sindrei [870]
I am not sure! What is the original equation?
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3 years ago
Cody is designing a pattern for a wood floor the length of the pieces of wood are 1 1/2 inches 1 13/16 inches and 2 1/8 inches w
Verdich [7]
The length of the fifth piece is 2 3/4 inches.

Given:
1st piece of wood = 1 1/2 inches
2nd piece of wood = 1 13/16 inches
3rd piece of wood = 2 1/8 inches

f(n) = 1st term + common difference(n-1)

To get the common difference, we need to deduct the fraction from its preceding fraction.

1st piece: 1 1/2 = (2*1 + 1)/2 = 3/2
2nd piece: 1 13/16 = (16*1+13)/16 = 29/16
3rd piece: 2 1/8 = (8*2+1)/8 = 17/8

29/16 - 3/2 = 29/16 - (3/2 * 8/8) = 29/16 - 24/16 = (29-24)/16 = 5/16
17/8 - 29/16 = (17/8 *2/2) - 29/16 = 34/16 - 29/16 = (34-29)/16 = 5/16

Find: 5th piece's measurement
1st term : 1 1/2 or 3/2
common difference : 5/16

f(5) = 3/2 + 5/16 (5-1)
      = 3/2 + 5/16 (4)
      = 3/2 + (5*4)/16
      = 3/2 + 20/16
      = (3/2 * 8/8) + 20/16
      = 24/16 + 20/16
      = (24 + 20)/16
f(5) = 44/16
f(5) = 2 12/16 simplified to 2 3/4 inches.
6 0
3 years ago
What is the correct way to write 340,000,000 in scientific notation?
GalinKa [24]
3.4 x 10^8 is the answer m888888888888888
8 0
3 years ago
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A guy walks in the store and steals 100 without the owners knowledge. He comes back 5 minutes later and buys 70 dollars worth of
ehidna [41]
Assuming the question is how much did he lose, it's $100. If we assume he started with $500 in his register, the original $100 stolen lowers it down to $400. The guy buying $70 worth of stuff puts it back to $470 in the register, but now with $70 less merchandise, so he lost $30 in cash and $70 in merchandise.
6 0
3 years ago
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