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9966 [12]
3 years ago
8

Determine the validity of the following argument. If one of the arguments is listed in the text, please name it: If n is a real

number such that n > 2, then n^2 > 4. Suppose that n^2 <= 4. Then n ? 2. Which rule of inference, if any, is being used?
Mathematics
1 answer:
Hoochie [10]3 years ago
3 0

Answer:

Step-by-step explanation:this is confusing for me oof

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Solve: 28 − ≥ 7( − 4)<br> (show your work)<br> real answers only pls :(
ohaa [14]
You’ll distribute the 7 from (x-4) so your equation will be
28-x>_ 7x-28
then you’ll combine like terms (-x and 7x and 28 and -28
-56>_ -8x
divide by -8 on both sides and flip your sign
you’re answer is x<_7
x is less then or equal to 7
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How many faces does a square pyramid have? three four five six
andrew-mc [135]

Answer:

5

Step-by-step explanation:

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-29=6+5xSimplify your answer as much as possible.
Ivahew [28]

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Step-by-step explanation:

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3 years ago
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A department store buys 300 shirts at a cost of ​$2,400 and sells them at a selling price of ​$10 each. Find the percent markup.
Solnce55 [7]

Answer:

67%

Step-by-step explanation:

Given : A department store buys 300 shirts at a cost of $1800 .

Then By unitary method , the cost of one shirt = Cost of 300 shirts divided by 300

= $1800 ÷ 300 = $6

i.e. cost of one shirt = $6

Also, Selling price of one shirt = $10

Price mark up = Selling price - Cost price

= $10-$6 = $4

The  percent mark up=

(rounded to the nearest percent)

Hence, the percent markup = 67%

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Artyom0805 [142]
It will be 160 degrees by doing multiple
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