The drama club can wash 9 cars in 40 minutes. At this rate, how many cars can they wash in 2 hours? Caution: turn hours to minu
1 answer:
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FORMULA:
AREA= AC x h
----------------------
2
PERIMETER= AB+BC+CA
AREA = SQUAREROOT
S(S-AB)(S-BC)(A-CA)
S= AB+BC+CA= P
----------------- -----
2 2
FOR THE COMPLETE SOLUTION PLEASE SEE THE PICTURE. THANKS.
AREA= AC x h
----------------------
2
PERIMETER= AB+BC+CA
AREA = SQUAREROOT
S(S-AB)(S-BC)(A-CA)
S= AB+BC+CA= P
----------------- -----
2 2
FOR THE COMPLETE SOLUTION PLEASE SEE THE PICTURE. THANKS.
Answer:
Since,
Here, the given equation is,
|a| < b
Case 1 : if a ≥ 0,
|a| < b ⇒ a < b
Case 2 : If a < 0,
|a| < b ⇒ -a < b ⇒ a > - b
( Since, when we multiply both sides of inequality by negative number then the sign of inequality is reversed. )
|a| < b ⇒ a < b or a > - b ⇒ -b < a < b
Conversely,
If -b < a < b
⇒ a < b or a > - b
⇒ a < b or -a < b
⇒ |a| < b
Hence, proved..