Zinc = 7/18
Divide 4.9 by 7 = 0.7
Multiply by 18 = 12.6
The answer is 12.6 lbs of alloy. Sorry if I'm wrong
Step-by-step explanation:
Distribute:
=−x2+−4x+−4+7
Combine Like Terms:
=−x2+−4x+−4+7
=(−x2)+(−4x)+(−4+7)
=−x2+−4x+3
Answer:
=−x2−4x+3
Answer:
10k.
Step-by-step explanation:
1) if for the 1st position can be used 0-9 digits (10 digits), for the 2d - 0-9 digits, for the 3d - 0-9 digits and for the 4th - 0-9 digits, then
2) the required number of pwd is: 10*10*10*10=10⁴=10000.
Answer:
1120°
Step-by-step explanation:
Use the sum of interior angles formula:

Where n is the number of sides.
In a nonagon, there are 9 sides, substitute 9 for n:

Since our nonagon is a regular nonagon, all 9 angles measure the same, so each angle measures:

Subtract 140 from 1260:

Answer:
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