2 years ago

PLEASE HELP ME!!!!!Invasive species spread to new environments by all of the following ways except through

Mathematics

1 answer:

goldenfox [79]2 years ago

4 0

It is d because corona virus

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baherus [9]

Answer:

x=133

Step-by-step explanation:

the missing angle plus are supplementary. the missing angle is 47 as a triangle must be 180 degrees.

therefore 180=x+47

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2 years ago

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irga5000 [103]

Answer on pic above

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3 years ago

The odds of selecting a red card from a box of cards are 2:5. What is the probability of not selecting a red card from a box?

Kipish [7]

3:5 because if there's a 2:5 chance of grabbing a red card then just subtract 2 from 5 and you get 3:5

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3 years ago

What is the value of 64 ?<br> A. 4<br> B. 21 1/3<br> C. 8<br> D. 2

Burka [1]

Answer:

Step-by-step explanation:

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3 years ago

The maximum grade allowed between two stations in a rapid-transit rail system is 3.5%. Between station A and station B, which

azamat

Answer:

Part a) The grade is 3.2%

Part b) This grade meet the rapid-transit rail standard

Step-by-step explanation:

we know that

The formula of slope is "rise over run", where the "rise" (means change in y, up or down) and the "run" (means change in x, left or right)

In this problem we have

$rise=8\frac{1}{2}\ ft=\frac{8*2+1}{2}=\frac{17}{2}\ ft$

$run=270\ ft$

$\frac{rise}{run}=\frac{17}{2}:270=0.0315$

convert to percentage

$0.0315*100=3.15\%$

Round to the nearest tenth of a percent

$3.2\%$

$3.2\% < 3.5\%$

therefore

This grade meet the rapid-transit rail standard

5 0

3 years ago