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4 years ago

if you have drums that hold 60 gallons and you need to ship 5,300 liters of liquid how many drums will you need

Mathematics

1 answer:

Naddika [18.5K]4 years ago

6 0

$\frac{5300}{60} =$ slightly over 88, so you will need 89 drums.

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Write the direction cosines of the vector -21-5k

AlekseyPX

Answer:

a=-2î+j-5k

|a| = √(−2)² +1² + (−5)²

a = √√4+1+25

a = √30

Thus, direction cosines of a are

(- 2/(sqrt(30)), 1/(sqrt(30)), - 5/(sqrt(30)))

6 0

3 years ago

Need help solving quadratic equations

Semenov [28]

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Question
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3x = 0.5x²

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Take out common factor , i.e. x
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3x = 0.5x²
3x - 0.5x² = 0
x(3 - 0.5x) = 0

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Use the Zero Product Property to solve for x
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x(3 - 0.5x) = 0
x = 0 or 3 - 0.5x = 0
x = 0 or 0.5x = 3
x = 0 or x = 3 ÷ 0.5
x = 0 or x = 6

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Answer: x = 0 or 6 (Answer D)
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Question
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0 = 5x² - 2x + 6

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Use Quadratic Formula
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$x = \frac{-b\pm \sqrt{b^2-4ac} }{2a}$

$a = 5, \ b = -2, \ c = 6$

$x = \frac{-(-2)\pm \sqrt{(-2)^2-4(5)(6)} }{2(5)}$

$x = \frac{2\pm \sqrt{-116} }{10}$

$x = \frac{2\pm \sqrt{-4} \sqrt{29} }{10}$

$x = \frac{2\pm 2i\sqrt{29} }{10}$

$x = \frac{1\pm i\sqrt{29} }{5}$

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$Answer \ = \boxed { \boxed { x = \frac{1\pm i\sqrt{29} }{5}}}$
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8 0

4 years ago

Write the polynomial that has factors of -4 and -6.

nata0808 [166]

Answer:

The greatest common factor of -4 and -6 is 2

Step-by-step explanation:

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3 years ago

A pen costs $.59. How much would a dozen pens cost?

irinina [24]

Y= $0.59(x)
y= $0.59(12)
y=?

y is the total
x is the amount of pen

so you multiply the cost of each pen with the amount of pens
$0.59 times 12

8 0

3 years ago

Read 2 more answers

How do I make a table of values for y=2-4X

Fofino [41]

Answer:

Step-by-step explanation:

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3 years ago