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3 years ago

13

Find the sum of−3x2−x−10 and 10x^2+x-10

1 answer:

Andru [333]3 years ago

5 0

<em>Look at the attached picture⤴</em>

<em>Look at the attached picture⤴Hope it will help u....:)</em>

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PLEASE I NEED HELP!

NARA [144]

Fourth one i think (the way u typed the q is confusing)

3 0

3 years ago

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Fifty-three percent of employees make judgements about their co-workers based on the cleanliness of their desk. You randomly sel

GarryVolchara [31]

Answer:

The unusual $X$ values for this model are: $X = 0, 1, 2, 7, 8$

Step-by-step explanation:

A binomial random variable $X$ represents the number of successes obtained in a repetition of $n$ Bernoulli-type trials with probability of success $p$ . In this particular case, $n = 8$ , and $p = 0.53$ , therefore, the model is ${8 \choose x} (0.53) ^ {x} (0.47)^{(8-x)}$ . So, you have:

$P (X = 0) = {8 \choose 0} (0.53) ^ {0} (0.47) ^ {8} = 0.0024$

$P (X = 1) = {8 \choose 1} (0.53) ^ {1} (0.47) ^ {7} = 0.0215$

$P (X = 2) = {8 \choose 2} (0.53)^2 (0.47)^6 = 0.0848$

$P (X = 3) = {8 \choose 3} (0.53) ^ {3} (0.47)^5 = 0.1912$

$P (X = 4) = {8 \choose 4} (0.53) ^ {4} (0.47)^4} = 0.2695$

$P (X = 5) = {8 \choose 5} (0.53) ^ {5} (0.47)^3 = 0.2431$

$P (X = 6) = {8 \choose 6} (0.53) ^ {6} (0.47)^2 = 0.1371$

$P (X = 7) = {8 \choose 7} (0.53) ^ {7} (0.47)^ {1} = 0.0442$

$P (X = 8) = {8 \choose 8} (0.53)^{8} (0.47)^{0} = 0.0062$

The unusual $X$ values for this model are: $X = 0, 1, 7, 8$

6 0

3 years ago

Read 2 more answers

23% put into a fraction

never [62]

Answer:

23/100

Explanation:

23% is 23 out of 100. 23/100 can not be simplified further.

3 0

3 years ago

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What is the median of these numbers 12 13 15 16 19 32

uysha [10]

Answer:

15 1/2 or 15.5

Step-by-step explanation:

the median is just the numer in the middle (numerical order) so, because you end up with both 15 and 16, the rational number between them is 15.5

4 0

2 years ago

.<br> Name the property the equation illustrates.<br><br> 7 + (4 + 4) = (7 + 4) + 4

vazorg [7]

Reflective property

6 0

3 years ago