Answer:
143 cm²
Step-by-step explanation:
There are 3 pairs of sides to this shape,
1 pair is the top and bottom pieces, each has an area of 4(3) = 12 cm², so there are 24 cm² from this pair.
the second pair is the front and back pieces, each has an area of
4(8.5) = 34 cm², so there are 68 cm² from this pair.
the third pair are the side pieces, each has an area of
3(8.5) = 25.5 cm², so there are 51 cm² from this pair.
Al together there are 24 + 68 + 51 = 143 cm²
<u>Answer:</u>
C
it's the set that will add to 180°
36° + 42° + 102° = 180°
-6x+3 u have to add same integers and subtract different integers
First move the 13 to the left by subtracting 13 from both sides and setting the 'now expression' equal to zero
p² - 12p - 13
Do the opposite of FOIL (for you are trying to find the numbers being FOILed)
p² - 12p - 13
Find the multiplies of the outside numbers/variables, that, when added (or subtracted, will give you the inside expression
p² - 12p - 13
p -13
p 1
(p - 13)(p + 1)
Set these two expressions equal to zero
p - 13 = 0
p - 13 (+13) = 0 (+13)
p = 13
p + 1 = 0
p + 1 (-1) = 0 (-1)
p = -1
Your answers: p = -1, 13
hope this helps
