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fomenos
3 years ago
10

Factor out the coefficient of the variable term. The expression 1.5y – 6 factored is

Mathematics
2 answers:
alina1380 [7]3 years ago
8 0

Answer:y=4

Step-by-step explanation: Simplifying

1.5y + -6 = 0

Reorder the terms:

-6 + 1.5y = 0

Solving

-6 + 1.5y = 0

Solving for variable 'y'.

Move all terms containing y to the left, all other terms to the right.

Add '6' to each side of the equation.

-6 + 6 + 1.5y = 0 + 6

Combine like terms: -6 + 6 = 0

0 + 1.5y = 0 + 6

1.5y = 0 + 6

Combine like terms: 0 + 6 = 6

1.5y = 6

Divide each side by '1.5'.

y = 4

Simplifying

y = 4

Brut [27]3 years ago
4 0
The answer is 1.5. I am pretty sure this is the answer
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Hi can someone please explain how to do this please?
Elza [17]

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Answer:

  (a)  an = 2n -1

  (b)  an = n(n +1)/2

  (c)  an = n^2

Step-by-step explanation:

(a) The odd numbers are an arithmetic sequence with first term 1 and common difference 2. The general term is ...

  an = a1 +d(n -1)

  an = 1 + 2(n -1)

  an = 2n -1

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(b) The triangular numbers are a quadratic sequence with first term 1, first first difference 2, and second differences 1.

The first few terms and differences are ...

  sequence: 1, 3, 6, 10, 15, 21, 28, ... (a1 = 1)

  first diff: . . . 2, 3, 4, 5, 6, 7, ... (d1 = 2)

  2nd diff: . . . . 1, 1, 1, 1, 1, ... (d2 = 1)

There is a sort of general formula* that can make use of these numbers to give the general term of the sequence:

  an = a1 +(n -1)(d1 +(n -2)/2(d2))

For the values we have, this gives our general term as ...

  an = 1 + (n -1)(2 +(n -2)/2(1))

  an = n(n +1)/2

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(c) The general term in the sequence of square numbers is simply the square of the term number:

  an = n²

_____

* There are a number of other ways to get to the general formula for triangle numbers. You can search for it, since it is well-known. You can use a quadratic regression tool on the sequence of numbers. You can develop a system of equations to find the coefficients of the quadratic equation.

The general formula given can be used to find polynomial sequences of any degree. Coefficients at successive layers in the formula are of the form (n -k)/k. The first term in parentheses following that is the first k-th difference.

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3 years ago
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A trough is 9 feet long, and its cross section is in the shape of an isosceles right triangle with hypotenuse 2 feet, as shown a
Andrei [34K]

Answer:

1/6

Step-by-step explanation:

Given:

  • Length of the trough: 9 ft

=> The volume of the trough: V =\frac{9}{2} * (b * h) (1)

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=> the other two sides of the triangle is:

= tan(45 degrees) = h/(b/2)

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Take derivative of volume with respect to time to find equation for rate of filling the trough

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<=> dh/dt = dV/dt /(18h)

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The rate is the height h feet of the water in the trough changing 2 minutes after the water begins to flow:

dh/dt = 1/(9h) = 1/(9 * 2/3) = 1/6

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3 years ago
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