3 years ago

In 2010 the population of Alaska was about 710,200 what is this number written in word form?

Mathematics

1 answer:

denis-greek [22]3 years ago

8 0

Answer:

seven-hundred thousand ten two-hundred

Step-by-step explanation:

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Eric is studying people's typing habits. He surveyed 525 people and asked whether they leave one space or two spaces after a per

Otrada [13]

Answer: (0.8115, 0.8645)

Step-by-step explanation:

Let p be the proportion of people who leave one space after a period.

Given: Sample size : n= 525

Number of people responded that they leave one space. =440

i.e. sample proportion: $\hat{p}=\dfrac{440}{525}\approx0.838$

z-score for 90% confidence level : 1.645

Formula to find the confidence interval :

$\hat{p}\pm z^*\sqrt{\dfrac{\hat{p}(1-\hat{p})}{n}}$

$0.838\pm (1.645)\sqrt{\dfrac{0.838(1-0.838)}{525}}\\\\=0.838\pm (1.645)\sqrt{0.00025858285}\\\\=0.838\pm (1.645)(0.01608)\\\\= 0.838\pm0.0265\\\\=(0.838-0.0265,\ 0.838+0.0265)\\\\=(0.8115,\ 0.8645)$

Hence, a 90% confidence interval for the proportion of people who leave one space after a period: (0.8115, 0.8645)

3 0

3 years ago

The manager of a coffee shop has one type of coffee that sells for $7 per pound and another type that sells for $11 per pound. T

kirza4 [7]

More of the $7 coffee would be used<span />

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3 years ago

Fiona has $18 to spend. She spent $4.25, including tax, to buy a notebook. She needs to save $9.75, but she wants to buy a snack

prohojiy [21]

18-4.25=13.75$ she has. 13.75-9.75=4$ she can spend. 4$/0.50=8 packages she can buy

3 0

3 years ago

What is the next number in the sequence 5, 10, 20, 40 , 50 ( )

alekssr [168]

I am pretty sure it is 100 becayse it looks luke it is doubling the number.

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3 years ago

In Triangle QRS, X is the midpoint of QR, Y is the midpoint of RS, and Z is the midpoint of QS.

wlad13 [49]

Answer:

Step-by-step explanation:

I just answered this for someone else... here is the same answer I gave them

QR + RS +SQ = perimeter

2(XR) + 2(YS) + QS = perimeter ( b/c multiplication is communicative SQ=QS)

2*5 + 2 * 7 + 20 = perimeter

10 + 14 + 20 = p

44 = p

3 0

3 years ago