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Archy [21]
2 years ago
7

PLEASE HELP NOW what is 9 - 4x^3 + 2x^2 + 8x^3 + 1 + 6x^2 simplified??

Mathematics
2 answers:
gulaghasi [49]2 years ago
7 0
Don’t click the links. Don’t trust it
GarryVolchara [31]2 years ago
5 0
4x^3+8x^2+10 should be correct
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When building the Channel, the English and French each started drilling on opposite sides of the English Channel. The two sectio
Alekssandra [29.7K]

Suppose the English could drill the Channel in 6.2 years, then they drill with speed \dfrac{L}{6.2} km per year, where L is the length of the English Channel. If the French could drill in 5.8 years, then their speed of drillling is \dfrac{L}{5.8} km per year.

Together their speed will be

\dfrac{L}{6.2} +\dfrac{L}{5.8} =\dfrac{5.8L+6.2L}{6.2\cdot 5.8}=\dfrac{12L}{35.96}=\dfrac{3L}{8.99}.

If they drill together, they will spend

\dfrac{L}{\frac{3L}{8.99}} =\dfrac{8.99}{3}=2.9966666....\approx 3 years.

Answer: it would have taken nearly 3 years.

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3 years ago
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Answer:

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Step-by-step explanation:

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3 years ago
For the following pair of variables, state the units that might be used to measure each variable. Then state whether you believe
AfilCa [17]

Answer:

The correct answer is:

There is a positive correlation because women's weight tend to increase when height increases (D)

Step-by-step explanation:

The units that might be used to measure each variable are:

Height : meter (m) or foot (plural, feet) (Ft.)

weight : kilograms (kg) or Pounds (lb)

A positive correlation is said to occur between two variables when they both move in the same direction, that is, when they both increase or decrease, while a negative correlation occurs when the movement is not in tandem, i.e, as one increases, the other decreases. The relationship between height and weight is a positive correlation because, an increase in height, which is mainly as a result of elongation of bones, leads to an accumulated increase in total body mass, which in turn increases the body weight.

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3 years ago
Q: Solve by the Extraction of Roots method: -<br><br> -5x²=-50
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Answer:

x =  \sqrt{10}

Step-by-step explanation:

- 5 {x}^{2}  =  - 50 \\  {x}^{2}  =  \frac{ - 50}{ - 5}  \\  {x}^{2}  = 10 \\ x =   \sqrt{10}

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2 years ago
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