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shepuryov [24]
3 years ago
9

Can anyone help me with this

Mathematics
1 answer:
Maksim231197 [3]3 years ago
3 0

Answer:

D. 8x³ + 4x⁷ - 3x³ + 3x² - 2x + 9

Step-by-step explanation:

(8x⁸ - 9x³ + 3x² + 9) + (4x⁷ + 6x³ - 2x)

Apply distributive property to eliminate parentheses

8x⁸ - 9x³ + 3x² + 9 + 4x⁷ + 6x³ - 2x

Collect like terms

8x⁸ + 4x⁷ - 9x³ + 6x³ + 3x² - 2x + 9

8x³ + 4x⁷ - 3x³ + 3x² - 2x + 9

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A skilled chess player believes that when they play a novice opponent, there is a 90% probability they will be able to beat them
zavuch27 [327]

Answer:

b) Binomial

c) Poisson

Step-by-step explanation:

The geometric distribution is the number of trials required to have r successes. The measures the number of sucesses(wins), not the number of trials required to win r games. So the geometric distribution does not apply.

For each match, there are only two possible outcomes, either the skilled player wins, or he does not. The probability of the skilled player winning a game is independent of other games. So the binomial distribution applies.

We can also find the expected number of wins of the skilled player, which is 15*0.9 = 13.5. The Poisson distribution is a discrete distribution in which the only parameter is the expected number of sucesses. So the Poisson distribution applies.

So the correct answer is:

b) Binomial

c) Poisson

7 0
3 years ago
Read 2 more answers
The combined volume of all the tanks at an aquarium is 1.25×10^6 gallons. The aquarium plans to install a new dolphin yank with
Umnica [9.8K]

Answer:

1,250,250 gallons

Step-by-step explanation:

1.25 * 10^6 gallons = 1,250,000 gallons

1,250,000 gallons + 250 gallons = 1,250,250 gallons

8 0
3 years ago
What is the answer to Ax - c = b
Korvikt [17]
Depends on what you are talking about, what is A,x,c and b.
If A is an invertible matrix and x,c,b are vectors of correct dimensions you get
Ax=b+c
x=A^(-1)(b+c)
if x is a variable and A,c,b are constants you get
Ax=b+c
x=(b+c)/A
8 0
3 years ago
Read 2 more answers
The ratio of red cars to blue cars in a parking lot was 5:3 if there were 40 red cars how many blue cars would there be
AveGali [126]

Answer:

24 blue cars

Step-by-step explanation:

Set up a proportion to solve this...

40/5 = x/3      (forty red cars is to five red cars as 'x' number of blue cars is to 3 blue cars)

Now solve by cross multiplying...

120 = 5x

    24 = x

6 0
3 years ago
Let f(x) = 7^x and g(x) = 7^x+2 - 4 which transformations are needed to strand form the graph of f(x) to the graph of g(x)?
serg [7]

Answer:

options 3 and 6

Step-by-step explanation:

the exponent x+2 means that the graph moves to the left 2 units and the value of K, which is -4, means that the graph will then move down 4 units from the parent function f(x)

6 0
3 years ago
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