Answer:
what does this mean
Step-by-step explanation:
????
Answer:
x = 135°
Step-by-step explanation:
Sum of interior angles of a pentagon is 540°
x + 80 + 110 + 95 + 120 = 540
--> x = 540 - 80 - 110 - 95 - 120 = 135
Answer:
The factored form of the equation is (x + 4)(x – 6) = 0.
Answer:
10 books.
Step-by-step explanation:
(b) To estimate the mean we take the mean value of books for each bar.
So for 0-4 books we use 4/2 = 2, for 5-9 we use (9-5)/ 2 + 5 = 7 and so on for each bar. So the estimate for the first bar is 2 * 9 = 18 books.
So the required mean = total estimate of books bought / number of students
= (9 *2 + 10*7 + 12*13 + 17*2 + 22*6) / 40
= 410 / 40
= 10.25
X= 800
Use the equation x+x+200+200=2000
2x+400=2000
-400 -400
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2x=1600
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2. 2
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X=800