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erma4kov [3.2K]
4 years ago
13

Find the value of x. (7x + 9) (2x - 18) x = 12 0000 x = 16 x = 21 x= 24

Mathematics
1 answer:
Salsk061 [2.6K]4 years ago
5 0

Answer:12

Step-by-step explanation:

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Function or not a function?
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Step-by-step explanation:

There must only be one output per input but here we see the input 18 has two outputs ; 3 and 15 therefore this is not a function.

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Simplify 9(30 - 2).<br> 252<br> 288<br> 272<br> 268
Lapatulllka [165]
28
x 9
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3 years ago
A heat pump cycle whose coefficient of performance is 2.5 delivers energy by heat transfer to a dwelling at a rate of 20 kW.
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Answer:

Net power = 20kW

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Step-by-step explanation:

Given that :

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8kW * 200= 1600kW

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3 0
3 years ago
What are the odds in russian roulette?
algol13

Answer:

about 66.5%

Step-by-step explanation:

There are two rounds, and six locations. There is a one in three chance that you will die. This probability does not change with any number of spins. There is a 66.7% chance (4/6) that you will live.

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