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irakobra [83]
3 years ago
8

sixteen students received awards for perfect scores on math or spelling quizzes last week. of these students, 11 received awards

for perfect math scores and 8 for perfect spelling scores. how many students earned two awards?
Mathematics
1 answer:
Oxana [17]3 years ago
8 0

Answer: 16 students receive passing grades out of those 16 , 11 Students receive perfect math & 8 perfect spelling

8 is you answer

Draw 16 circles that would rep the students

Count up to 11 with 1 mark in each bubble that would rep the perfect math

Then count 8 and put 1 Mark in the Bubble and you'll see that 8 Students Received 2 Awards

Step-by-step explanation:

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Explain why any of the four operations placed between two terms 5 and -3 sqrt (8) will result in an irrational number
Gnoma [55]

Sum/difference:

Let

x = 5 + (-3\sqrt{8}) = 5-3\sqrt{8}

This means that

3\sqrt{8} = 5-x \iff \sqrt{8} = \dfrac{5-x}{3}

Now, assume that x is rational. The sum/difference of two rational numbers is still rational (so 5-x is rational), and the division by 3 doesn't change this. So, you have that the square root of 8 equals a rational number, which is false. The mistake must have been supposing that x was rational, which proves that the sum/difference of the two given terms was irrational

Multiplication/division:

The logic is actually the same: if we multiply the two terms we get

x = -15\sqrt{8}

if again we assume x to be rational, we have

\sqrt{8} = -\dfrac{x}{15}

But if x is rational, so is -x/15, and again we come to a contradiction: we have the square root of 8 on one side, which is irrational, and -x/15 on the other, which is rational. So, again, x must have been irrational. You can prove the same claim for the division in a totally similar fashion.

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3 years ago
Which type of angle is ABC
AleksAgata [21]
ABC is a right angle
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3 years ago
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Add and Simplify. <br> (2x-y-2z-6)+(-6x+4y+3z+8)
asambeis [7]

Answer:

-4x + 3y + z + 2

Step-by-step explanation:

5 0
2 years ago
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Good morning luvs &lt;3 how are yall ?
almond37 [142]

Answer:

we gooood :p

Thanks, for asking

8 0
3 years ago
M - 37 = 56<br> jack has 56 marbles Kyle has 37 fewer than jack
Goshia [24]

Do we have to solve for M if so, the answer is

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hope it's helpful

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