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3 years ago

Choose all the statements that are true about this sequence.

Mathematics

1 answer:

Aleksandr [31]3 years ago

6 0

This is an arithmetic sequence

The value of the 3rd term is 72

There are 4 terms in this sequence

The sequence starts at 60 and adds 6 repeatedly

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What is 1 + 1 - 10 -50 -40 x 9877 -7000 + 500 - 600 X 564847584 -38339

ikadub [295]

Answer:

-338908990377

Step-by-step explanation:

that is the answer

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3 years ago

A car dealership sells 0, 1, or 2 luxury cars on any day. When selling a car, the dealer also tries to persuade the customer to

melisa1 [442]

Answer:

Mean = 1.42

Variance = 0.58

Step-by-step explanation:

Given: X denote the number of luxury cars sold in a given day, and Y denote the number of extended warranties sold.

Also, joint probability function of X and Y are given.

To find:

mean and variance of X

Solution:

From the given joint probability function of X and Y,

$P(X=0)=\frac{1}{6}\\P(X=1)=\frac{1}{12}+\frac{1}{6}=\frac{1+2}{12}=\frac{3}{12}\\P(X=2)=\frac{1}{12}+\frac{1}{3}+\frac{1}{6}=\frac{1+4+2}{12}=\frac{7}{12}$

Mean of X:

$E(X)=\sum XP(X)\\=0\left ( \frac{1}{6} \right )+1\left ( \frac{3}{12} \right )+2\left ( \frac{7}{12} \right )\\=0+\frac{3}{12}+\frac{14}{12}\\=\frac{17}{12}=1.42$

Variance of X:

$E(X^2)=\sum X^2P(X)\\=0^2\left ( \frac{1}{6} \right )+1^2\left ( \frac{3}{12} \right )+2^2\left ( \frac{7}{12} \right )\\=0+\frac{3}{12}+\frac{28}{12}\\=\frac{31}{12}$

$var(X)=E\left [ X^2 \right ]-\left ( E\left [ X \right ] \right )^2\\=\frac{31}{12}-\left ( \frac{17}{12} \right )^2\\=\frac{31}{12}-\frac{289}{144}\\=\frac{372-289}{144}\\=\frac{83}{144}\\=0.58$

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4 years ago

Why is sad green and blue smell good and noises look pretty,except some noises are ugly? HELP

cestrela7 [59]

Answer:

it depends on ur mood at the time, rely.

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3 years ago

Please help I’m not sure how to do this and I’m struggling

Alexeev081 [22]

1.1 Pull out like factors :

-8x - 2 = -2 • (4x + 1)

2.1 Divide both sides by -2

Remember to flip the inequality sign:

2.2 Divide both sides by 4

x+(1/4) ≥ 0

Solve Basic Inequality :

2.3 Subtract 1/4 from both sides

x ≥ -1/4

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3 years ago

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There are 16 tablespoons in 1 cup. How many tablespoons of cornstarch would Rhoda need to make 23 batches of green slime?

pashok25 [27]

Answer:

92 tablespoons

Step-by-step explanation:

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3 years ago

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