Atriangle having sides of 2, 2, and 3 contains

a right angle
an obtuse angle
three acute angles

  an obtuse angle

Step-by-step explanation:

A right triangle with legs of length 2 would have a hypotenuse of length ...

  √(2² +2²) = √8 ≈ 2.828

The third side of this triangle is longer than that, so the opposite angle must be more than 90°. This triangle contains an obtuse angle.

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A triangle solver says the angles are about 41.4°, 41.4°, and 97.2°.

b. 6

step-by-step explanation:

we are given the table representing an exponential function.

we can see from the table that, as x is increasing, the value of y is increasing in the power of 6.

i.e. the following relation is obtained,

x = 1, y = 6

x = 2, y = 36 =

x = 3, y = 216 =

x = 4, y = 1296 =

x = 5, y = 7776 =

so, the geometric series obtained is .

thus, the common ratio is given by = = 6.

hence, the common ratio is 6.

large crystals result from very slow cooling.

evaporation of water: this would produce an evaporite which is a sedimentary rock. like a salt pan in a desert. not possible to have volcanic rocks originate this way.

crystalization in molten earth: slow cooling over time. (hundreds to millions of years)

crystalization at earth's surface: this results in fast cooling. (a few hours to a few months or years)

crystalization from cooling off hot water: that would be a hydrothermal deposit. while associated with volcanics they are not volcanic rocks themselves and usually occur fairly rapidly.