2 answers:
Answer: 17.5
Step-by-step explanation: solve following the rules of PEDMAS
Work out figures enclosed in parentheses
(16x24) = 384
384 x 280/? = 107520
Equate the result to 6144
107520/? = 6144
Multiply through by ?
107520 = 6144?
? = 107520/6144
? = 17.5
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The missing length is 12km (i never promised anything xd)
Answer:
16 ft
Step-by-step explanation:
Answer:
-2 , -10 & -99
Step-by-step explanation:
1)
⇒ x + 6 = 4
⇒ x = 4-6
⇒ x = (-2)
2)
⇒x - (-4) = -6
⇒ x + 4 = -6
⇒ x = -6-4
⇒ x = -10
3)
⇒2(x-1) = -200
⇒ x - 1 = -200/2
⇒ x - 1 = -100
⇒ x = 1 - 100
⇒ x = (-99)
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You can use (a+b)2 = a2+2ab+b2.
(2x - 3)2 = (2x)2 + 2(2x)(-3) + (-3)2 = 4x2 - 12x + 9
Or you can use FOIL.
(2x - 3)2 = (2x - 3)(2x - 3) = (2x)2 + (2x)(-3) + (-3)(2x) + (-3)2 = 4x2 - 12x + 9
hope I could be helpful
