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Answer: -3/4 (choice C)</h3>
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Explanation:
Think of a whole cake or pizza. Now slice it into 4 equal pieces. This represents 1 is the same as 4/4.
Adding on another quarter slice gets us 4/4+1/4 = 5/4
In other words, the mixed number 1 & 1/4 is the same as the improper fraction 5/4.
So 1 & 1/4 = 5/4
This then means -1 & 1/4 = -5/4 because we multiply both sides by -1.
Now we'll add on 1/2, which is the same as 2/4, like so
(-1 & 1/4) + 1/2
-(1 & 1/4) + 2/4
-(1 + 1/4) + 2/4
-1 - 1/4 + 2/4
-1 + (-1/4 + 2/4)
-1 + 1/4
-4/4 + 1/4
-3/4
which points us to choice C as our final answer
Notice how if we started at -5/4, and moved to the right 2 tickmarks, we arrive at -3/4. Each tickmark represents 1/4 of a unit, so two of them is 2/4 = 1/2.
Side note: -3/4 converts to the decimal -0.75
9514 1404 393
Answer:
B. 56
Step-by-step explanation:
The exterior angle 72° is half the difference of the intercepted arcs, 200° and x:
72° = (200° -x)/2
144° = 200° -x
x = 200° -144°
x = 56°
4 thousand and 7 hundred (4700) is as much as 47 hundreds. Just divide the given number (4700) by 100, add a word "hundreds" and you'll get the result.
Answer C 52.3 cm2
Step-by-step explanation:
I say this because When using the A=r2 x a / 2 you plug in the numbers and het the sector area.
