MATHEMATICS COLLEGE

Find the prime factorization of
72

Answers

Answer 1

Answer:

Answer:

72 = {2,2,2,3,3}

Step-by-step explanation:

2433

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Solve the equation -6+3×=-9

Answers

-6 + 3x = -9

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And 6 to both sides:
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3x = -3

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Divide by 3 on both sides:
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x = -1

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Answer: x = -1
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Find the area + perimeter of the following triangle

Answers

Answer:

Perimeter = 14 $√(2)$

Area = $√(42)$

Step-by-step explanation:

Can someone help me ASAP

Answers

Answer:

the y intercept is -4 and the slope is 1

Step-by-step explanation:

A distance was observed four times as 248.13, 248.06, 248.18, 248.15. The observations were given a weight of 3 1, 2, and 3, respectively, but the observer. a.Calculate the weighted mean for line BC. b.Calculate the weighted mean of BC if weights are revised as 1, 1, 3, & 3 respectively.

Answers

Answer:

a. 248.14

b. 220.576

Step-by-step explanation:

The weighted mean can be calculated as

Xbarw= sumwx/sumw

where x are the observations and w are the weights of the observations.

x w wx

248.13 3 744.39

248.06 1 248.06

248.18 2 496.36

248.15 3 744.45

sumwx=744.39+248.06+496.36+744.45=2233.26

sumw=3+1+2+3=9

Xbarw= sumwx/sumw

Xbarw= 2233.26/9

Xbarw= 248.14

The weighted mean for line BC is 248.14.

x w wx

248.13 1 248.13

248.06 1 248.06

248.18 3 744.54

248.15 3 744.45

sumwx=248.13+248.06+744.54+744.45=1985.18

sumw=3+1+2+3=9

Xbarw= sumwx/sumw

Xbarw= 1985.18/9

Xbarw= 220.576

The weighted mean for line BC is 220.576.

Final answer:

The weighted mean of line BC for the first given weights is 248.13. The weighted mean for the revised weights is 248.14.

Explanation:

The weighted mean of a set of values is calculated by multiplying each value by its weight, summing those products, and then dividing the sum by the total of the weights. So we will first multiply each distance by its corresponding weight then add them all up and divide it by the sum of weights. Let's calculate.

For the first case, the weights given are 3, 1, 2, and 3. The weighted mean of BC can be computed as ((248.13*3)+(248.06*1)+(248.18*2)+(248.15*3)) / (3+1+2+3), which equals 248.13.
For the second case, the weights are revised as 1, 1, 3, and 3. The weighted mean of BC in this case is ((248.13*1)+(248.06*1)+(248.18*3)+(248.15*3)) / (1+1+3+3), which gives 248.14.

Learn more about Weighted Mean here:

brainly.com/question/35447441

#SPJ3

35 points (all of my points), please help. How do you write y=1/5x-1, or y=0.2x-1 in point slope form? Also, y=-5x-42? And are 9x+3y=6 and 3x+9y=6 perpendicular, parallel, or neither?

Answers

Step-by-step explanation:

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