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2 years ago

Round 2,173 to the nearest hundred

Mathematics

2 answers:

expeople1 [14]2 years ago

7 0

The answer would be 2,200

finlep [7]2 years ago

7 0

Answer:

2200

Step-by-step explanation:

7 in the tens place is higher than five, so you round up

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Jake and Erica were solving a system of equations. They both noticed that the two lines had the same slope. Jake said that becau

cluponka [151]

The correct answer is option A. Erica is correct in saying that the two lines are not necessarily the same and we should also look at the y-intercepts before determining how many solutions there were. <span>Two lines with equal slopes could be the same line, but only if they have the same y-intercept.</span>

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3 years ago

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I don’t understand stand this question someone please help me with work shown

djyliett [7]

Answer:

60°

please look into the solution down here.

Step-by-step explanation:

since BD bisects it, then the angles should be bisected symmetrically, or in other words, ANGLE ABD = angle DBC,

hence,

4x = 2x +30

2x = 30

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3 years ago

300 people can fit into the gym for the basketball game. If 2/3 of the people have assigned seats and 40 band members are alread

saw5 [17]

2/3 of 300 is 200.
200 +40 = 240.
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300 - 240 = 60
That means that there are 60 seats remaining.

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2 years ago

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1. Susan decides to take a job as a transcriptionist so that she can work part-time from

IRISSAK [1]

Answer:

a) About 46.3 hours

b) About $1036.80

Step-by-step explanation:

Break even means to make enough to cover her costs.

Given her cost is 1000, we need to find how many hours she will need to cover this up.

In 1 minute, she can type 90 words, that would pay her:

0.004 per word for 90 words = 0.004 * 90 = $0.36 per minute

Susan makes $0.36 per minute, so the amount of time (in minutes) it will take her to make $1000, is:

1000/0.36 = 2777.78 minutes

Converting that to hours, we divide by 60,

2777.78/60 = 46.3 hours

4 hours per day for 3 days = 4 * 3 = 12 hours (per week)

Let there be 4 weeks in a month, so

12 hours per week * 4 = 48 hours per month

She will work 48 hours per month.

Given 90 words per minute, in 1 hour, she can type:

60 minutes * 90 = 5400 words per hour

In 48 hours, she can type:

5400 words per hour * 48 hours = 259,200 words

That would pay her:

0.004 per word for 259,200 words = 0.004 * 259,200 = $1036.80

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3 years ago

According to the Shannon Diversity Index, which of the five blocks above, with each containing 36 squares, would show the greate

Sladkaya [172]

Answer:

Block 5

Step-by-step explanation:

The Shannon Diversity Index rewards larger numbers of species and more even distribution of species. On the face of it, Block 5, with its uniform distribution among 4 species, should have the highest index. When we do the calculation, we find this is the case. (see attachments)

___

The SDI is the negative of the total of the products of relative frequency and the natural log of that relative frequency.

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3 years ago