Some areas in North American had darkness for how many months

Alaska Gets Six Months of 24-Hour Sunlight and Darkness

So at the North Pole the duration of 24-hour darkness lasts almost 11-weeks, not six months.

Explanation:

Barrow is one of Alaska's northernmost cities and gets complete darkness for two months out of the year. During the summer, the sun doesn't completely set in Barrow from early May until the end of July.

Antarctica has just two seasons: summer and winter. Antarctica has six months of daylight in its summer and six months of darkness in its winter.

The North Pole has midnight sun for 6 months from late March to late September. The opposite phenomenon, polar night, occurs in winter, when the Sun stays below the horizon throughout the day.

The correct answer to this open question is the following.

Although there are no options attached we can say the following.

Some areas in North American have the darkness for two months.

This is the case of Alaska, specifically a town named Barrow, in the northwest region of Alaska. The darkness period usually starts in middle November and runs until mid-January.

There have been myths that darkness stays for as long as six months in some places of Alaska, but that is only a myth. Those long periods of darkness only happen in the northern regions of the North Pole.

x = 7

step-by-step explanation:

equating the expression for area to the given area

2x² - 7x - 4 = 45 ( subtract 45 from both sides )

2x² - 7x - 49 = 0 ← in standard form

to factor consider the factors of the product of the coefficient of the x² term and the constant term which sum to give the coefficient of the x- term

product = 2 × - 49 = - 98 and sum = - 7

the factors are - 14 and + 7

use these factors to split the middle term

2x² - 14x + 7x - 49 = 0 ( factor the first/second and third/fourth terms )

2x(x - 7) + 7(x - 7) = 0 ← factor out (x - 7)

(x - 7)(2x + 7) = 0

equate each factor to zero and solve for x

x - 7 = 0 ⇒ x = 7

2x + 7 = 0 ⇒ 2x = - 7 ⇒ x = -

thus the positive value for x is x = 7

answer; deviation iq; //(a)