There are several ways in which we could answer this question. My choice is to actually solve the given quadratic equation, x^2 + 4x + 4 = 12.
Note that x^2 + 4x + 4 is a perfect square. Thus,
x^2 + 4x + 4 = 12 is the same as (x+2)^2 = 12, so that
x+2 = plus or minus √3*√4, or plus or minus 2√3.
Thus, the two real, unequal roots are
x = -2 + 2√3 and x = -2 - 2√3. These correspond to answer choices C and E.
They can NOT. A right angle is 90°. An obtuse angle is greater than 90°. All the angles in a triangle must add up to exactly 180°. If two angles are greater than 90° then they will add up to greater than 180, beacuse 90 plus 90 equals 180. You cannot have a triangle with two obtuse angles because they will add up to greater than 180°.
Answer:
a)smaller b)equivalent
Step-by-step explanation:
greater because the median height of the indoor plant is 1 cm whereas the full sunlight plant's is 2.5 cm
equivalent because the ratio of growth is limited due to natural circumstance's (standardization)
You can't factor anything out of this except for a number. In this case, you can factor out a four. 16/4=4 40/4=10. This written out should look like 4(4x+10y), and that is your answer.
