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stepladder [879]
3 years ago
8

Round 222,977 to the nearest hundred

Mathematics
2 answers:
Sauron [17]3 years ago
8 0
<span> 223,000. There is a rounding rap to help :)

</span>
erastovalidia [21]3 years ago
4 0
The place the value of 9 is in is the hundreds place.  So, any number greater than 5 is rounded up.  7 is greater than 5, so the 9 becomes a 0 and the next number is increased by 1.  All the values after are marked as a 0.  The answer is 223,000.
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Determine the point estimate of the population proportion, the margin of error
ahrayia [7]

Answer:

\hat p=0.645\\\\ME=0.233\\\\x=645 \ individuals

Step-by-step explanation:

-Given the boundaries as 0.412 and 0.878

-\hat p is the point estimate for the population proportion and is calculated as follows:

\hat p=\frac{Upper \ Bound+Lower \ Bound}{2}\\\\=\frac{0.878+0.412}{2}\\\\=0.645\\\\

#The margin of error, ME can be calculated for the confidence intervals using the formula:

ME=\frac{Upper \ Bound-Lower \ Bound}{2}\\\\=\frac{0.878-0.412}{2}\\\\=0.233

#The number of individuals in the sample is the product of the point estimate and population size:

\hat p=\frac{x}{n}\\\\x=\hat pn\\\\=0.645\times 1000\\\\=645

Hence, there are 645 individuals in the sample.

8 0
2 years ago
Toni rides the Ferris wheel shown for 15 revolutions. A photo of a Ferris wheel has the diameter labeled fifty-six feet. Questio
NARA [144]

Answer:

a. 176 feet b. 2640 feet

Step-by-step explanation:

a. Since the diameter of the Ferris wheel is D = 56 feet, the distance Toni travels in one revolution is the circumference of the Ferris wheel, C = πD.

So C = 22/7 × 56 ft = 22 × 8 ft = 176 feet

b. The distance traveled in 15 revolutions is thus D' = 15 × distance of one revolution = 15 × 176 = 2640 feet

5 0
3 years ago
What is seven hundred thirty-one million, nine hundred thirty-four thousand, thirty in standard form
Sindrei [870]
731,934,030


please mark the brainiest
6 0
3 years ago
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A circle is divided into three arcs of measures x 2x and 3x what’s the value of x
lidiya [134]

Answer:

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Step-by-step explanation:

This questions tests our knowledge on arcs and arc measures.

-Arc measure is the angle that an arc makes with the circle's center.

-The arc measure is proportional to the arc.

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Given a circle has 360°, the arc measurement x can be calculated as:

[x+2x+3x]=360\textdegree\\\\6x=360\textdegree\\\\x=60\textdegree

Hence, the arc measurement x is 60°

8 0
3 years ago
Find the vertex of " "y = x^2 + 5x+ 4" please show steps as well thanks
zlopas [31]
(x^2 +5x+2.5^2) +4+5

(x+2.5)^2+9

vertex -2.5,9
8 0
2 years ago
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