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3 years ago

Please i need to pass this test

Mathematics

1 answer:

Hatshy [7]3 years ago

5 0

The last one is correct

I added everything up lol

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Darius created a factor tree and wrote the prime

mrs_skeptik [129]

Answer:

D i got it right

Step-by-step explanation:

5 0

3 years ago

Read 2 more answers

In a lottery game a player wins $1,000,000 with probability 0.0000005, wins $200,000 with probability0.000002, and wins $30,000

MariettaO [177]

Answer:

$X_1 = 1000000 , P(X_1)= 0.0000005$

$X_2 = 200000 , P(X_2)= 0.000002$

$X_3 = 30000 , P(X_3)= 0.00001$

$X_4 = -2, P(X_4) = 1-0.0000005-0.000002-0.00001= 0.9999875$

And then replacing we have this for the expected value:

$E(X) = 1000000*0.0000005 +200000*0.000002+30000*0.00001 2*0.9999875$

And after do the math we got:

$E(X) = -0.79998$

And then the expected value for this game is -0.79998 a negative result means NOT a win.

Step-by-step explanation:

For this case we can define the random variable X as the amount that we can win. We can find the expected value with the following formula:

$E(X) = \sum_{i=1}^n X_i P(X_i)$

And we have the following probabilities and possible values given:

$X_1 = 1000000 , P(X_1)= 0.0000005$

$X_2 = 200000 , P(X_2)= 0.000002$

$X_3 = 30000 , P(X_3)= 0.00001$

$X_4 = -2, P(X_4) = 1-0.0000005-0.000002-0.00001= 0.9999875$

And then replacing we have this for the expected value:

$E(X) = 1000000*0.0000005 +200000*0.000002+30000*0.00001 2*0.9999875$

And after do the math we got:

$E(X) = -0.79998$

And then the expected value for this game is -0.79998 a negative result means NOT a win.

7 0

3 years ago

HELP HURRYYY, like it’s due in 20 minutes

meriva

Answer:

D is the right answer

Step-by-step explanation:

$3.0 {} \times 10^{8} = 6.5 \times 10^{9} \\ = 3.5 \times 10 ^{1}$

Here's the EXPLANATION !! Pls mark as brainliest...!!

6 0

4 years ago

Round 80.92 to the nearesr whole number

garri49 [273]

81 if the number is higher than 5 or equal to 5 you round up

8 0

4 years ago

Read 2 more answers

What is the lateral area of the pyramid?

Mars2501 [29]

Lateral surface are = 2( 1/2 x 11 x 11.9) + 2( 1/2 x 9 x 12.3)

Lateral surface area = 130.9 + 110.7 = 241.6 ft²

Answer: 241.6 ft² (Answer C)

7 0

3 years ago