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s344n2d4d5 [400]
3 years ago
12

7/8m + 9/10 - 2m - 3/5

Mathematics
2 answers:
castortr0y [4]3 years ago
7 0
-9/8m+3/10. There is a nice algebra calculator that i use called mathpapa.com
Heres the link.
pshichka [43]3 years ago
3 0

Answer:

The simplified form is -\frac{9m}{8}+\frac{3}{10}

Step-by-step explanation:

Consider the provided expression.

\frac{7}{8}m + \frac{9}{10} - 2m - \frac{3}{5}

Now combine the like terms,

Like terms are the terms which contains same variables of same degree.

\frac{7}{8}m -2m + \frac{9}{10}-\frac{3}{5}

The above expression can be written as:

\frac{7}{8}m -\frac{8}{8}\times 2m + \frac{9}{10}-\frac{2}{2}\frac{3}{5}

\frac{7-16m}{8}+\frac{9-6}{10}

-\frac{9m}{8}+\frac{3}{10}

Hence, the simplified form is -\frac{9m}{8}+\frac{3}{10}

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See attached for a sketch of some of the cross sections.

Each cross section has area equal to the square of the side length, which in turn is the vertical distance between the curve y = √(x + 1) and the x-axis (i.e. the distance between them that is parallel to the y-axis). This distance will be √(x + 1).

If the thickness of each cross section is ∆x, then the volume of each cross section is

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As we let ∆x approach 0 and take infinitely many such cross sections, the total volume of the solid is given by the definite integral,

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2 years ago
The approximation of which irrational number is shown by point R on the number line?
Alenkasestr [34]

Answer:

B it is very simple my friend

Step-by-step explanation:

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6 0
2 years ago
2. The path of a high diver is given by y = + (2x2 – 9x – 56), where y is the height of the diver
timofeeve [1]

Answer:

The diver will be 8 feet from the end of the board when he hits the water.

Step-by-step explanation:

The diver hits the water when y = 0.

To find the distance, we have to find the values of x when y = 0.

Solving a quadratic equation:

Given a second order polynomial expressed by the following equation:

ax^{2} + bx + c, a\neq0.

This polynomial has roots x_{1}, x_{2} such that ax^{2} + bx + c = (x - x_{1})*(x - x_{2}), given by the following formulas:

x_{1} = \frac{-b + \sqrt{\bigtriangleup}}{2*a}

x_{2} = \frac{-b - \sqrt{\bigtriangleup}}{2*a}

\bigtriangleup = b^{2} - 4ac

In this problem, we have that:

y = 2x^{2} - 9x - 56

2x^{2} - 9x - 56 = 0

So

a = 2, b = -9, c = -56

Then

\bigtriangleup = b^{2} - 4ac = (-9)^{2} - 4*2(-56) = 529

x_{1} = \frac{-(-9) + \sqrt{529}}{2*2} = 8

x_{2} = \frac{-(-9) - \sqrt{529}}{2*2} = -3.5

It is a horizontal distance, so the answer is a positive value.

The diver will be 8 feet from the end of the board when he hits the water.

7 0
3 years ago
In the Acronym WKU, what does each letter represent?
marin [14]

Answer:

Western Kentucky University

Step-by-step explanation:

Western Kentucky University is a public university in Bowling Green, Kentucky. It was founded by the Commonwealth of Kentucky in 1906, though its roots reach back a quarter-century earlier. It operates regional campuses in Glasgow, Elizabethtown-Fort Knox, and Owensboro.

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3 years ago
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yan [13]

Answer:

72

Step-by-step explanation:

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3 years ago
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