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tekilochka [14]
3 years ago
8

The marketing department of a nationally known cereal maker plans to conduct a national survey to find out whether or not consum

ers of flake cereals can distinguish one of their favorite flake cereals. In the survey, eight people were presented with five bowls of flake cereal, and were told that only one contained their favorite. Suppose that the eight persons in the experiment were unable to identify their favorite cereal and just guessed which bowl it was in. What is the probability that none of the eight guessed correctly
Mathematics
1 answer:
LenKa [72]3 years ago
3 0

Answer:

Step-by-step explanation:

The probability that a person answered incorrectly is 4/5

P(1st answered incorrectly AND 2nd answered incorrectly AND

3rd answered incorrectly AND 4th answered incorrectly AND

5th answered incorrectly AND 6th answered incorrectly AND

7th answered incorrectly AND 8th answered incorrectly)

Since "AND" mean to multiply, the probability that none of the 8 guessed correctly is

4/5×4/5×4/5×4/5×4/5×4/5×4/5×4/5

=(4/5)^8

=0.16777216

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Given h(x) = -5x – 1, solve for x when h(x) = -6.
andrey2020 [161]

Answer:

h(x) = 1

Step-by-step explanation:

h(x) = both of these equations, but really only -6. Plug in 1 to x in the equation and it will equal -6.

Hope this helps

5 0
3 years ago
Factor out the coefficient of the variable 5/6s+2/3
DochEvi [55]
Okay. so I'm gonna assume you know what factor out means--were gonna take out 5/6. what we need to know is, how does that affect our ending number 2/3? well, we're gonna have 5/6 times some stuff first off, right?

5/6 ( )

so what's in the parenthesis? well, if we distribute in our mind, S would just have to be by itself for it to work out. so we have

5/6 ( s )

but what about 2/3? well, if we're multiplying everything on the inside by 5/6, how can be get it to cancel and leave 2/3 alone? we could divide 2/3 by 5/6, right?

5/6 ( s + (2/3) / (5/6) )

now, when we distribute our 5/6, we'll have just 2/3 at the end. now let's simplify that end term so it looks a little better. if we divide by a fracion, that's the same as multiplying by the flipped version, so let's do that.

2/3 / 5/6 = 2/3 × 6/5 = 2 (6) / 5 (3) = 12/15

we can reduce 12/15 by dividing the top and bottom by three.

= 4/5

so our final answer would be:

5/6 [S + 4/5] you can redistribute to make sure it matches. Anyway, hope that helps!
6 0
3 years ago
MATH math can you help me pls
Alexxandr [17]

Answer: A = k =250

B= y,x=0.5

Step-by-step explanation: Find the constant of variation.

7 0
3 years ago
Read 2 more answers
Help plz!! Show work , need help on this
lilavasa [31]

Answer:

Step-by-step explanation:

n = 3 => f(n) = -4*-3+8 = -44

n= 0 =>  f(n) = -4*0+8 = 8

n= 2 =>  f(n) = -4*2+8 = 0

n= 7 =>  f(n) = -4*7+8 = -20

5 0
3 years ago
9) What are the complement and supplement to a 27-degree angle?<br> Need answer As soon as possible!
seropon [69]
Complementary angles add up to 90°. The complement of a 27° angle is 90°-27°= 63°.


Supplementary angles add up to 180°. The supplement of a 27° angle is 180°-27°=153°
3 0
3 years ago
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