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galben [10]
3 years ago
7

Which is an equation of the line containing the points (2,5) and (4,4) in standard form?

Mathematics
1 answer:
guapka [62]3 years ago
6 0
First, find the slope of the line thru these 2 pts:

         5-4
m = --------- = -1/2
         2 -4 

Use the slope-intercept formula y = mx + b:

5 = (-1/2)(2) + b.  Then the y-intercept is 5 + 1, or 6:  y = (-1/2)x + 6

Multiplying this entire result (3 terms) by 2 results in 2y = -x + 12, or

x + 2y = 12 (answer)
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Yuliya22 [10]
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4 0
3 years ago
Determine whether the given value is a statistic or a parameter. A homeowner measured the voltage supplied to his home on one da
Natasha_Volkova [10]

Answer:

C. The given value is a statistic statistic for the year year because the data collected represent a sample sample.

Correct. The value reported is an statistic since represent a SAMPLE of the population of interest.

Step-by-step explanation:

The sample mean obtained was :

\bar X =\frac{\sum_{i=1}^n X_i}{n}= 144.3

A. The given value is a parameter parameter for the year year because the data collected represent a population population.

False. The data colected represent a sample of the population of interest, so for this case is not a parameter because we don't have the information about all the population of interest.

B. The given value is a parameter parameter for the year year because the data collected represent a sample sample.

False. First the sample average is not a parameter, and second the population mean is not equal to the sample mean most of the times.

C. The given value is a statistic statistic for the year year because the data collected represent a sample sample.

Correct. The value reported is an statistic since represent a SAMPLE of the population of interest.

D. The given value is a statistic statistic for the year year because the data collected represent a population.

False. If is an statistic can't represent the population, since the parameter represent the population not the statistic.

4 0
3 years ago
Solve the following exponential equations.<br> 2(4^x )+ 4^(x+1 )= 342
Cloud [144]

Answer:

  x ≈ 2.91644500708

Step-by-step explanation:

The equation can be simplified to ...

  2(4^x) +4(4^x) = 342

  6(4^x) = 342

  4^x = 57

Taking logarithms, we get ...

  x = log₄(57) = log(57)/log(4)

  x ≈ 2.91644500708

5 0
3 years ago
3/5 x 3/5 is equal to 3/5 , since 3/5 is being multiple by a value equal to 3/5 true or false ?
LenKa [72]
False, because any number multiplied by a number lower than 1 will always be less than the original number
3 0
3 years ago
Quarters make up what part of the group of coins ? Write the answer as fraction and word firm
aleksandr82 [10.1K]
Quarts = 25 there are 100 in a dollar so you have 25 out of 100

25/100<span />
3 0
3 years ago
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