3 years ago

Can you please help me

Mathematics

1 answer:

alexandr402 [8]3 years ago

8 0

Answer:

$D$

Step-by-step explanation:

Every integer is a rational number.

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The weight of people in a small town in missouri is known to be normally distributed with a mean of 154 pounds and a standard de

ad-work [718]

If a random sample of 20 persons weighed 3,460, the sample mean x-bar would be 3460/20 = 173 pounds.
The z-score for 173 pounds is given by:
$z=\frac{173-154}{29}=0.655$
Referring to a standard normal distribution table, and using z = 0.66, we find:
$P(\bar x\ \textless \ 173)=0.7454$
Therefore
$P(\bar x\ \textgreater \ 173)=1-0.7454=0.2546$
The answer is: 0.2546

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4 years ago

4. Communicate Precisely When you graph a quadratic function, the

AleksandrR [38]

Answer:

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3 years ago

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alexdok [17]

9514 1404 393

Answer:

g(x) = x -1

Step-by-step explanation:

Translation of a function by (right, up) = (h, k) is accomplished by ...

g(x) = f(x -h) +k

Here the translation is 4 units left, so h=-4 and k=0. This means ...

g(x) = f(x +4) = (x+4) -5

g(x) = x -1

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3 years ago

Thirty students are eating lunch at 5 tables. Each table has the same number of students. How many students are sitting at each

kaheart [24]

30 ÷ 5
6 students at each table

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Otrada [13]

Answer:

(in image)

Step-by-step explanation:

sorry it's sloppy i used windows paint to fill it in but if the probability for heads is 2/7 then the probability for tails is 5/7. Multiply the probabilities for each situation to get answers.

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3 years ago