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4 years ago

6

20. Average year-after-year conditions are to__________as day-to-day atmospheric conditions are to

1 answer:

Alenkasestr [34]4 years ago

4 0

Year after year conditions refer to climate. Climate is based on an average of overall weather conditions. It can aid Meteorologists in long and short term weather predictions based on past and present weather conditions. Day to day atmospheric conditions refer to weather.

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Evaluate C(9, 3). a)504 b)84 c)60480 d)5040

melomori [17]

Answer:

b

Step-by-step explanation:

Evaluate using the definition

n $C_{r}$ = $\frac{n!}{r!(n-r)!}$

where n ! = n(n - 1)(n - 2)(n - 3)..... × 3 × 2 × 1

Given

9 $C_{3}$

= $\frac{9!}{3!(9-3)!}$

= $\frac{9.8.7.6.5.4.3.2.2.1}{3!.6!}$

= $\frac{9.8.7.6.5.4.3.2.1}{3.2.1(6.5.4.3.2.1)}$

Cancel 6.5.4.3.2.1 on numerator and denominator, leaving

= $\frac{9.8.7}{3.2.1}$

= $\frac{504}{6}$

= 84 → b

3 0

3 years ago

Simplify the expression by combining like terms.<br> 6xy - 2y + 8y + 7xy + 5xy

Juliette [100K]

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5 0

3 years ago

What is the answer to this question 20+-11

Anarel [89]

9

Think of it like you are going up so -11+20=9

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3 years ago

A ranger stands at the top of a 160-foot tower. He spots a campfire at an 8° angle of depression.

Montano1993 [528]

See the attached picture for the solution:

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3 years ago

What is the approximate total percent off when you buy something at "An extra 20% off of 40% off"?

Georgia [21]

Answer:

48%

Step-by-step explanation:

let's say the initial price of an item is $100

if you take 40% off then you pay only $60

now if you take 20% off 60 you pay $48

$48 is 48% of 100

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3 years ago