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Lana71 [14]
2 years ago
6

Help me with this math plz

Mathematics
2 answers:
gulaghasi [49]2 years ago
8 0
Can you post the question or image
Olin [163]2 years ago
8 0

Answer:

what's the question. ...

Step-by-step explanation:

.

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Convert 21/40 to a percent
Naya [18.7K]
21/40 = 52.50% (52.5)
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3 years ago
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The CONIC SECTIONS get this name from the fact that they are formed by the intersection of a cone and a A) plane. B) sphere. C)
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It is a cylinder.........
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Simplify using order of operations.Show all your work. 4^3 + (`10-8) divided by 2
Igoryamba

Answer:

<h2>65</h2>

Step-by-step explanation:

Use PEMDAS:

P Parentheses first

E Exponents (ie Powers and Square Roots, etc.)

MD Multiplication and Division (left-to-right)

AS Addition and Subtraction (left-to-right)

------------------------------------------------------------------------

4^3+(10-8)\div2=64+2\div2=64+1=65

3 0
2 years ago
How do I do this? Please explain in detail.
umka2103 [35]
22.5/(x-6) + 22.5/(x+6) = 9
multiply by x-6
=> (x-6)22.5/(x-6) + (x-6)22.5/(x+6) = 9(x-6)
=> 22.5 + (x-6)22.5/(x+6) = 9(x-6)
multiply by x+6
=> (x+6)22.5 + (x+6)(x-6)22.5/(x+6) = 9(x-6)(x+6)
=> (x+6)22.5 + (x-6)22.5 = 9(x-6)(x+6)
distribute
=> 22.5x+6(22.5) + 22.5x - 6(22.5) = 9(x^2 - 36)
=> 45x = 9x^2 - 9(36)
=> 0 = 9x^2 - 45x - 9(36)
divide by 9
=> 0 = x^2 - 5x - 36
=> 0 = x^2 - 5x - 36
=> 0 = (x - 9)(x + 4)
x=9 and -4
8 0
3 years ago
Read 2 more answers
What is 3.4 rounded to?
seraphim [82]

3.5

Step-by-step explanation: because it’s simple 3.4 simply rounds up because 4 is higher so it rounds to 3.5

3 0
3 years ago
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