Answer: trapezoid
Step-by-step explanation: A <u>trapezoid</u> is a quadrilateral
with exactly one pair of parallel sides.
Also, quadrilaterals are two-dimensional shapes.
So it's impossible that's its 3-d.
The answer is
R=65-60p
r=5(13-12p)
-2(x + 3) = -2(x + 1) - 4
-2x - 6 = -2x - 2 - 4 <em>distributed -2 on the left and on the right</em>
-2x - 6 = -2x - 6
<u>+2x </u> <u>+2x </u>
-6 = -6
TRUE
Since this is a true statement, there are infinite solutions (aka All Real Numbers)
Answer: C
Answer:
The sample loses 
of its mass every days.
Step-by-step explanation:
Expression that shows the relation between final mass of the element after 't' days is,
M(t) = 
If M(t) = two third of the initial mass [After the loss of one third of the initial mass remaining mass of the element = 1 - = 
rd of the initial mass]
![\frac{2}{3}=[(\frac{2}{3})^3]^t](https://tex.z-dn.net/?f=%5Cfrac%7B2%7D%7B3%7D%3D%5B%28%5Cfrac%7B2%7D%7B3%7D%29%5E3%5D%5Et)
By comparing powers on both the sides
3t = 1
t = day
Therefore, The sample loses of its mass every days.
Answer: Could just answer for these two, sorry
b)48
d) 127
Step-by-step explanation:
b) EC=180
180= EA+AB+BC
180=79+53+AB
AB=180-132=48
d) EA+AB=79+48=127
