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RUDIKE [14]
3 years ago
14

The Air Quality Index, or AQI, measures how polluted the air is in your city and assigns a number based on the quality of the ai

r. Over 100 is "Unhealthy". The following quadratic regression equation, models the AQI over time, where n represents the number of days the AQI exceeded 100, and t represents the number of years since 1990.
Mathematics
1 answer:
tatuchka [14]3 years ago
3 0

Answer:

it is actually c.135 days on edge just took the test

Step-by-step explanation:

took the test

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Help please and make sure the answer is right! Please :(
likoan [24]

You see how these 2 angles marked are both inside the 2 parallel lines?

And they are on opposite side of the transversal, the line crossing the 2 parallel lines?

These 2 angles are alternate interior angles and they are equal, I think you can do the last part by yourself.

8 0
3 years ago
Rita has 10 centimeters of
astra-53 [7]

Answer: 1.25

Step-by-step explanation:

because it is

6 0
3 years ago
To which subsets of real numbers does the number -22 belong?
Sergeu [11.5K]

Answer: A -22 can be a rational number as well as a integer

Step-by-step explanation:

Whole Number: A whole number is not a fraction or a decimal so a example would be: 43 or 85 or 1 or 3. Zero is not a whole number. Negative are not whole numbers

Rational number: A rational number is a number that can be expressed as a fraction or a decimal. Like 33 can be 33/1. Most numbers are rational. Zero is a rational number.

Integers: A integer is not a fraction or a decimal. its a positive or negative number. Example: 1 or -5 or 85 or -445. there is still some arguments about if zero is a integer.

Irrational numbers: A irrational number cannot be expressed as a ratio. So for example pi: 3.141592653589......(it keeps on going, we haven't even gotten to the end because its infinite).

Natural numbers: Natural numbers are positive numbers. Example: 1,6,3,4,62,3 etc. Sometimes zero is a natural number.

Hope I helped,

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6 0
4 years ago
Solve 2 log x = log 64. .
svlad2 [7]
Log×^2=log64
x^2=64
x^2=8^2
x=8
5 0
3 years ago
What’s the answer please
skad [1K]

Answer:

h  ≤ 124 / 9

or

h  ≤ 13.78

Step-by-step explanation:

(3/4) (12h - 32) ≤ 100      (multiply both sides by 4)

(3) (12h - 32) ≤ 100 (4)

(3) (12h - 32) ≤ 400   (distribute 3 into the parenthesis)

(12h)(3) - (32)(3) ≤ 400   (expand left side terms)

36h - 96 ≤ 400   (add 96 to both sides)

36h  ≤ 400  + 96

36h  ≤ 496  (divide both sides by 36)

h  ≤ 496 / 36   (sinmplify)

h  ≤ 124 / 9

or

h  ≤ 13.78

3 0
3 years ago
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