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Zina [86]
3 years ago
7

What is the quotient of this division problem 2218 divided by 14

Mathematics
1 answer:
kkurt [141]3 years ago
5 0

Answer:

158.428571429

158 remainder 6

Step-by-step explanation:

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Please help me ASAP please
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Answer:

Independent variable: c

Dependent variable: b

Step-by-step explanation:

The c is by itself meaning it is independent. :)

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Can you help me with these please 30 points
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Answer: 1. densities

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3. it will sink so A

Step-by-step explanation:

the density must be lower than 1 g/cm3 for it to float

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Find cos(2*ABC) 100POINTS
juin [17]

Answer:

-\dfrac{7}{25}

Step-by-step explanation:

<u>Trigonometric Identities</u>

\cos(A \pm B)=\cos A \cos B \mp \sin A \sin B

<u>Trigonometric ratios</u>

\sf \sin(\theta)=\dfrac{O}{H}\quad\cos(\theta)=\dfrac{A}{H}\quad\tan(\theta)=\dfrac{O}{A}

where:

  • \theta is the angle
  • O is the side opposite the angle
  • A is the side adjacent the angle
  • H is the hypotenuse (the side opposite the right angle)

Using the trig ratio formulas for cosine and sine:

  • \cos(\angle ABC)=\dfrac{3}{5}
  • \sin(\angle ABC)=\dfrac{4}{5}

Therefore, using the trig identities and ratios:

\begin{aligned}\implies \cos(2 \cdot \angle ABC) & = \cos(\angle ABC + \angle ABC)\\\\& = \cos (\angle ABC) \cos (\angle ABC) - \sin(\angle ABC) \sin (\angle ABC)\\\\& = \cos^2(\angle ABC)-\sin^2(\angle ABC)\\\\& = \left(\dfrac{3}{5}\right)^2-\left(\dfrac{4}{5}\right)^2\\\\& = \dfrac{3^2}{5^2}-\dfrac{4^2}{5^2}\\\\& = \dfrac{9}{25}-\dfrac{16}{25}\\\\& = \dfrac{9-16}{25}\\\\& = -\dfrac{7}{25} \end{aligned}

7 0
2 years ago
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A salesman has a base salary of $1,400. He receives an additional 3.5% commission on his total sales. Last month his total salar
muminat
$1,400+(3.5% times x)=$2,800
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Jerome bought 2 post cards and described $1.50 and change in quarters, dimes,nikles.are worth 15cents.if you got none coins back
LenKa [72]

Answer:

$1.65 cents

Step-by-step explanation:

8 0
3 years ago
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