Answer:
Shown Below
Step-by-step explanation:
Alright so first off we are going to use the little 67 on that corner. We know that it's a supplementary angle, and supplementary angles add up to 180.
180 - 67 = 113.
Inside angles of a triangle all add up to 180. Using that we can create the equation:
(x + 27) + x + 113 = 180
simplify.
2x + 140 = 180
subtract 140 on both sides.
2x = 40
divide both sides by 2
x = 20
substitute x into the asked equation.
(20 + 27) = 47
47 is your answer.
Answer:
58%
Step-by-step explanation:
Let's say you started with 100 dollars. Then, the next year, since it decreased by 30%, you would now have 100 - 30 = 70 dollars. Then, you decrease by 40%, so now it is 70 - 28 = 42 dollars. So, the total percent decrease is 100-42 = 58 percent.
Answer:
B.)
Step-by-step explanation:
that is a characteristic of a maximum value parabola.
Answer:
The second option or B
Step-by-step explanation:
The approximate total mass= number of atoms * weight of an atom.
The approximate total mass=3.06 10²³ atoms. (1.67 10⁻²⁴ grams/1 atom)=
=0.51102 g ≈ 0.51 g
Answer: the approximate total mass is 0.51 grams.