3 years ago

How many people in the survey worked on Election Day?

Mathematics

1 answer:

Lelechka [254]3 years ago

8 0

69 I’m pretty sure don’t get me wrong

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Y+4=2y-3, find y and show your work.<br>

Fed [463]

Answer:

y = 7

Step-by-step explanation:

we can substitute y for 7 in the equation to confirm that y = 7

7 + 4 = 2(7) - 3

7 + 4 = 14 - 3

11 = 14 - 3

11 = 11

(sorry if this is confusing but I hope it helped)

6 0

3 years ago

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For the wheel pictured on the right, assume that a person spins the pointer and is awarded the amount indicated by the pointer.

Anuta_ua [19.1K]

The expectation value is given by:

$EV=\sum_{i\mathop{=}1}^nx_iP(x_i)$

In this case we just have two options, each with probability 1/2, and the values of x are 2 and 9; then we have:

$\begin{gathered} EV=(2)(\frac{1}{2})+(9)(\frac{1}{2}) \\ EV=2+\frac{9}{2} \\ EV=\frac{13}{2} \\ EV=6.5 \end{gathered}$

Therefore, the expectation is $6.5

3 0

1 year ago

It's a comon core math question the teacher is nice but.... She dosent like helping students out

Luba_88 [7]

Answer: Well i mean thats a personal question but tell your teacher that she not being much help.

Step-by-step explanation:

7 0

3 years ago

What is the answer to this ?

Rudik [331]

Answer:

the answer is 180

Step-by-step explanation:

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3 years ago

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Lydia wanted to flip a coin and roll a die at the same time, but she also wondered what the probability of the coin landing on h

exis [7]

Answer:

incorrect

Step-by-step explanation:

this is because it would be 1/2 and 1/6. you would have to multiply the bases for a probability of 1/12

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3 years ago