3 years ago

Calculate the average (arithmetic mean) for the data set (rounded to the nearest tenth

Mathematics

1 answer:

Ugo [173]3 years ago

5 0

The right answer is 19.9

Step-by-step explanation:

Given data set is;

(18, 23, 17, 25, 15, 18, 18, 16, 27, 25, 18, 19)

Sum of terms = 18+23+17+25+15+18+18+16+27+25+18+19 = 239

Number of terms in data set = 12

Average = $\frac{Sum\ of\ terms}{Number\ of\ terms}$

Average = $\frac{239}{12}$

Average = 19.91

The average of data set is 19.91

The right answer is 19.9

Keywords: average, addition

Learn more about addition at:

#LearnwithBrainly

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If -7(y-3)= -14 what is the value of y

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3 years ago

10(2^×) + 7(3^×) = 6^× + 70

Mkey [24]

Answer:

x = 2.81 and 2.096

Step-by-step explanation:

Given the expression

10(2^x) + 7(3^x) = 6^x + 70

This can also be expressed as;

10(2^x) + 7(3^x) = (2*3)^x + 70

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Let a = 2^x and b = 3^x

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a(10-b)+7(b-10) = 0

a(10-b)-7(10-b) = 0

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a = 7 and b = 10

Since a = 2^x

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log 7 = log2^x

log7 = xlog2

x = log7/log2

x = 2.81

Similarly

10 = 3^x

log 10 = log 3^x

log 10 = xlog3

x = log 10/log 3

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Hence the values of x that satisfies the equation are 2.81 and 2.096

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3 years ago

ASAP!! I need help. -w-Which answer choice shows 5 +0.9 + 0.06 written in standard form?

miss Akunina [59]

The answer is c . 5.96

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It is.................x+y=5

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3 years ago