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2 years ago

7

A scientist estimates that the mean nitrogen dioxide level in a city is greater than 30 parts per billion. To test this estimate

, you determine the nitrogen dioxide levels for 31 randomly selected days. The results (in parts per billion) are listed below.

1 answer:

irina [24]2 years ago

3 0

Answer:

Step-by-step explanation:

incomplete. no results listed below

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PLEASE HELP WILL GIVE BRAINLIEST!!! What does the degree of a polynomial expression tell you about its related polynomial functi

Art [367]

Where an, an-1,a2, a1, a0 are constants. We call the term containing the highest power of x the leading term, and we call an the leading coefficient. The degree of the polynomial is the power of x in the leading term. We have already seen degree 0, 1, and 2 polynomials which were the constant, linear, and quadratic functions, respectively. Degree 3, 4, and 5

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3 years ago

A student receives test scores of 62, 83, and 91. This student's term project score is 88. Each test is worth 20% of the final g

miskamm [114]

Answer:

The student's current average score will be 69.2

Step-by-step explanation:

Let first test be TEST A: which is 20 of total and secures 62

Let second test be TEST B: which is 20 of the total marks and has secured 83.

Let third test be TEST C: which is 20 of total and has secured 91.

And now the TEST D which is 25 of total and has secured 88.

Therefore, by multipying across

${0.2}\times{62}$ = 12.4

${0.2}\times{83}$ = 16.6

${0.2}\times{91}$ = 18.2

${0.25}\times{88}$ =22

Now, by adding the scores to get the average score

We get, 69.2.

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3 years ago

Find the sum of the series.

ch4aika [34]

Answer:

as per my point to view you can use a L.C.M so you can get the answer or you can try using a exponent way like 5by 1 as n value is 1 so it may give yoh answer

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2 years ago

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A pharmacist put 3.84 ounces of vitamin pills into bottles. She put 0.032 ounce

Alecsey [184]

Answer:

0.032

Step-by-step explanation:

Divide each term by 0.032 and simplify

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3 years ago

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When 27 times x squared times z all over negative 3 times x squared times z to the fourth power is completely simplified, the ex

snow_lady [41]

Isolate z by itself:

$\frac{z}{z^4}$

To simplify variables with powers, subtract the smaller power from the bigger power:

$4 - 1 = 3$
$\frac{z}{z^4} = \frac{1}{z^3} = z^{-3}$

The exponent will be -3.

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3 years ago

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