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3 years ago

5

Middle school students were asked how they got to school each morning. There were 375 students who said they rode the bus. This

number represents 60% of the school enrollment. How many students are enrolled?

1 answer:

const2013 [10]3 years ago

5 0

Answer:

625 students

Step-by-step explanation:

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X to the power of 2+ 2X plus 3X to the power of 2+ 4X subtract 2X to the power of 2+ X

eimsori [14]

Answer:

4x+12

Step-by-step explanation:

$2x + 2 \times { }^{2} + 6x + 12 x ^{2} - 4x + - 2x ^{2}$

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3 years ago

Multiply (5 + 3i)(5 − 3i) <br><br> 16 + 15i <br><br> 16 − 15i <br><br> 16 <br><br> 34

Annette [7]

Answer:

(5 + 3i)(5 − 3i) = 34

Step-by-step explanation:

The multiplication of two identical binomials who have different symbol, can be solved using the factoring case of a difference of squares:

$(a-b).(a+b)=a^{2}-b^{2}$

So, in this case:

$(5+3i).(5-3i) = 5^{2}-(3i)^{2}$

$=25-9i^{2}$

Remember that $i=\sqrt{-1}$

So: $i^{2}=-1$

We replace on the polynomial:

$=25-9.(-1) = 25+9=34$

3 0

3 years ago

Read 2 more answers

Patti puts 40 marbles in a bag. Each marble has 3 grams. What us the total mass of the bag of marbles? in grams?

JulijaS [17]

I believe that the answer is 120 marbles.<span />

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2 years ago

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6) If the Leaning Tower of Pisa has a height of 55 meters, radius of 8 meters, what is the volume?

disa [49]

Volume is space inside, the tower isnt a right cylinder so technically u cant find the volume with the standard formula

8 0

3 years ago

Jane has rolled a fair die 7 times and each time has gotten a 3. She says that the probability that she will get a 3 on the next

Alexandra [31]

Answer:

A.No, the probability of getting a 3 on a fair die does not change. It will always be

Step-by-step explanation:

Get a good grade!

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3 years ago