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k0ka [10]
3 years ago
12

In 2010, the average cost of electricity was 11.54 cents per kilowatt hour. In 2014, the average cost of electricity

Mathematics
2 answers:
Marianna [84]3 years ago
6 0

Answer:

B

Step-by-step explanation:

Olin [163]3 years ago
6 0

Answer:

B

Step-by-step explanation:

First take 12.52 and subtract 11.54 to find the amount it had decreased. (.98)

After that, divide it by 4 (because it increased by .98 over 4 years) and you get .245 a year.

and sense your starting value was 11.54 the +11.54 also checks out

Gage Millar, algebra 2 tutor.

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KiRa [710]

Answer:

D. 7/8 pound

Step-by-step explanation:

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5 0
3 years ago
In a random sample of 500 handwritten zip code digits, 464 were read correctly by an optical character recognition (OCR) system
In-s [12.5K]

Answer:

z= 2.38

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Step-by-step explanation:

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H0 =  0.9 ;       H0 > 0.9

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z= 466-500 *0.9/ √500 * 0.9(1-0.9)

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If H0 is true the P value is calculated as

P = 1- Ф( 2.38)

P = 1-0.991344=0.008656

7 0
4 years ago
SOMEONE HELP ME PLSSSSSSSSSSSSSSS
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Answer: i'm sorry it does not make any since

Step-by-step explanation:

4 0
3 years ago
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The multiplication property of equality could be used to solve which of the following equations?
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