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Vikentia [17]
3 years ago
9

hallie is trying to win the grand prize on a game show. Should she try her luck by spinning a wheel with 6 equal sections labele

d from 1 to 6 and hopes she gets a five, or should she roll a two number cubes and hope she gets the same number on both cubes? Explain.
Mathematics
2 answers:
Anvisha [2.4K]3 years ago
7 0
She should pin the wheel cause it will take to long to get 2 5

Valentin [98]3 years ago
5 0
I would say she should spin the wheel because, if she rolled the dice it would take a long time to get 2 5's on both dice at one time.
Hope this helps!
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5. (9r 3 + 5r 2 + 11r) + (-2r 3 + 9r - 8r 2)
ad-work [718]

Answer:

7r³ - 3r² + 20r

Step-by-step explanation:

(9r³ + 5r² + 11r) + (-2r³ + 9r - 8r²)

You can get rid of the parentheses since there is nothing to distribute.

9r³ + 5r² + 11r - 2r³ + 9r - 8r²

Combine like factors.

7r³ - 3r² + 20r

3 0
2 years ago
Assume that a policyholder is four times more likely to file exactly two claims as to file exactly three claims. Assume also tha
kykrilka [37]

Answer:

1.3125

Step-by-step explanation:

Given that our random variable X follows a Poisson distributionP(X=k)=\frac{\lambda^k e^-^p}{k!} \ \ \ \ \ \ \ \ p=\lambda

Evaluate the formula at k=2,3:

P(X=2)=0.5\lambda^2e^{-\lambda}\\\\P(X=3)=\frac{1}{6}\lambda^2e^{-\lambda}

#since

4P(X=2)=P(X=3);\\\\0.5\lambda^2e^{-\lambda}=4\times\frac{1}{6}\lambda^3e^{-\lambda}\\\\0.5\lambda^2=\frac{2}{3}\lambda^3\\\\0.75=\lambda

The mean and variance of the Poisson distributed random variable is equal to \lambda:

\mu=\lambda=0.75\\\sigma ^2=\lambda=0.75

#By property variance:

\sigma ^2=V(X)=E(X^2)-(E(X))^2=E(X^2)\\\\E(X^2)=\sigma^2+\mu^2=0.75+0.75^2=1.3125

The expectation is 1.3125

4 0
3 years ago
Keisha says that all functions are relations but not all relations are functions. kevin says that all relations are functions bu
vladimir1956 [14]

Keisha is correct, because as per the definition <u>A function is a special relationship where each input has a single output</u>.

A function is a special relation. In other words, a relation if and only if it has a specific characteristic where each input has a single output, then it is called a Function.

All functions are relations but not all relations are functions.


3 0
3 years ago
The sum of 10 and a number x is equal to 14.
Scorpion4ik [409]

Answer:

10+x=14; x=4

<h2>Step-by-step explanation:</h2>

10+x=14

-10     -10

The 10's cancel out

x=4

4 0
3 years ago
Read 2 more answers
Find the solution set of each inequality below and then determine which inequalities have the same solution set as 1/3(-5x-3) &l
mario62 [17]

1/3(-5x - 3) < 14

-5/3 x - 1 < 14

-5/3 x < 15

-5 x < 45

-x < 9

x > 9

5 0
3 years ago
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