The continent measures 3,300 miles at its widest point—from St. John's, Newfoundland, to the Pacific Coast. From Alaska to Mexico, the continent extends 4,900 miles. Europe is made up of many small nations. Unlike it, North America is composed of only three large nations: Canada, the United States, and Mexico. Which opening sentence best states the main idea of the paragraph?

A.

North America stretches "from sea to shining sea."

B.

Canada is the largest country in North America.

C.

Mexico is well-known for having dry, hot summers.

D.

Those countries have many people and different climates.

answer by yourhope:

hi! : )

what is the first step in analyzing or preparing a summary for a piece of literature?

c) describe the setting!

: )

this is the answer , p = 1 + (1/10)x

step-by-step explanation:

we have,

at sea level pressure is 1 atmosphere (i.e at x =0, p0=1 atmosphere)

at depth 23 meters , pressure = 3.3 atmosphere

since the pressure increases at constant rate as the depth increases, so we can write a relation as:

p =p0 +   kx   , where p is the pressure  , p0 is the initial pressure, x is the depth and k is constant rate of increasing.

to find constant rate k, plug p = 3.3 , p0 = 1 and x= 23 meters

we get,

  3.3 = 1 + k * 23

k = 2.3 / 23   = 1/10

so we can write the function formula as:   p = 1 + (1/10)x

d) sarah's natural reaction to being accepted into college suggests that she has no other dreams.