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3 years ago

-2,-1,0,1 whichave pair of numbers has a sum of zero

Mathematics

1 answer:

Verizon [17]3 years ago

3 0

-1+1=0. So your answer is -1 and 1

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13. Connie wants to paint one wall in her living room. Along the wall, she

erica [24]

Answer: Approximately 96 square feet

======================================================

Work Shown:

1 ft = 30 cm

1 ft = (5*6) cm

1 ft = 5*(6 cm)

1 ft = 5*(1 board width)

1 ft = 5 board widths

12*(1 ft) = 12*(5 board widths)

12 ft = 60 board widths

12 ft = 1 full wall length

The wall is 12 feet horizontally across and 8 feet tall, so its estimated area is 12*8 = 96 square feet approximately. This is approximate because of the fact we used the approximation of 1 ft = 30 cm.

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3 years ago

Use the number line to show<br> 2/3 divide 1/12 <br> What is the quotient

JulsSmile [24]

Answer:

Step-by-step explanation:

There is no number line given, so I will use the "keep change flip" method.

$\frac{2}{3}\div\frac{1}{2}\\\rule{150}{0.5}\\ \frac{2}{3}\cdot\frac{12}{1}\\\\\frac{2\cdot12}{3\cdot1}\\\\\frac{24}{3}\\\\\boxed{8}$

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3 years ago

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Suppose the lengths, in seconds, of the songs in an online database are normally distributed. For a random sample of songs, the

sattari [20]

Answer:

186

Step-by-step explanation:

The sample mean, x, is the central value in the confidence interval, that is, the average between the upper and lower bounds of the interval.

In this case, the Lower bound is 184.00 and the upper bound is 188.00. Therefore, the sample mean is given by:

$x = \frac{184+188}{2}\\x=186.00$

The mean length, in seconds, of the sampled songs is 186.00.

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3 years ago