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Anni [7]
3 years ago
6

If 10 custom engraved pens cost $100 how much will 8 of the same pens cost?

Mathematics
2 answers:
BartSMP [9]3 years ago
4 0

Answer:

80

Step-by-step explanation:

lyudmila [28]3 years ago
3 0

Answer:

$80 they cost $10 each

Step-by-step explanation:

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3. A mysterious metal medallion has a mass of 3,088 grams. Water is poured into a graduated glass container with a 10-by-10 cm s
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Step-by-step explanation:

Volume of displaced water = (10cm)(10cm)(1.6cm)

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6 0
2 years ago
F(x) =
Oksana_A [137]

9514 1404 393

Answer:

  f'(x) = (-6x² -14x -23)/(x² +5x +2)²

  f''(x) = (12x³ +42x² +138x +202)/(x² +5x +2)³

Step-by-step explanation:

The applicable derivative formula is ...

  d(u/v) = (v·du -u·dv)/v²

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  f'(x) = ((-x² -5x -2)(4x +4) -(2x² +4x -3)(-2x -5))/(-x² -5x -2)²

  f'(x) = (-4x³ -24x²-28x -8 +4x³ +18x² +14x -15)/(x² +5x +2)²

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Similarly, the second derivative is the derivative of f'(x).

  f''(x) = ((x² +5x +2)²(-12x -14) -(-6x² -14x -23)(2(x² +5x +2)(2x +5)))/(x² +5x +2)⁴

  f''(x) = ((x² +5x +2)(-12x -14) +2(6x² +14x +23)(2x +5))/(x² +5x +2)³

  f''(x) = (12x³ +42x² +138x +202)/(x² +5x +2)³

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3 years ago
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Step-by-step explanation:

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8 0
3 years ago
Multiple Choice
Delvig [45]

Answer:

The answer is B

Step-by-step explanation:

The formal is A = a+b/2 time h

You just substitute the variables and get the answer

8 0
3 years ago
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