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wel
3 years ago
10

9(2m + 5n + 10) =

Mathematics
2 answers:
Ainat [17]3 years ago
7 0

Answer:

B

Step-by-step explanation:

9×2m=18m

9×5n=45n

9×10=90

so,our answer is 18m+45n+90

Galina-37 [17]3 years ago
5 0

Answer:

B

Step-by-step explanation:

9 multiple 2m = 18m

9 multiple 5n = 45n

9 multiple 10= 90

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Which of the following pairs of triangles can be proven congruent through SSS?
Anni [7]

Answer:

B

Step-by-step explanation:

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3 years ago
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Find the four rational numbers and irrational numbers between 2/5 and 5/6
Savatey [412]
The four?

Of course there are an infinite number of rationals between any two different real numbers, as well as an even bigger infinite number of irrationals.

The average will be between the numbers:

\frac 1 2 (\frac 2 5 + \frac 5 6) = \dfrac{37}{60}

That's a lot of work to get a number in between.  We can just see

\frac 1 2
is between the two numbers.

The mediant, or freshman addition, will always be in between:

\dfrac{2 + 5}{5 + 6} = \dfrac{7}{11}

2/5=.4 and 5/6 is about .83, so

.6 = \frac{6}{10}

is in between as is .7, .41, .530940394 and as many rationals as we care to generate.

To get irrationals we could just add a teeny irrational to the ones we just generated, like \frac{6}{10} + \frac{\pi}{100}

We could just change that denominator a bit and get as many as we like.

But let's get some square roots.  The geometric mean will be between

\sqrt{ \dfrac 2 5 \cdot \dfrac 5 6 } = \dfrac{1}{\sqrt{3}}


That's the tangent from one of trig's biggest cliches, but I digress.  It's in between.

While we're on trig cliches, 

\dfrac{1}{\sqrt{2}}

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Keeping with the trig theme, also in between are

\dfrac{\pi} 6

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\dfrac{\pi}{4}


the angles associated with the some of the above trig function values.

We could obviously go on as long as we cared to.



7 0
3 years ago
The piecewise function h(x) is shown on the graph.
Artemon [7]

Step-by-step explanation/Answer:

<u><em>The value for h(3) is 1.</em></u>

<u><em>Coordinate (3,1)</em></u>

The value on h(3) is located in the last part of the piecewise function, which starts at (1,3) until (4,0). To know the exact image of h(3), we can find the function that belongs to that piece of line, and then calculated the asked value.

So, to calculate the equation, we first have to find the slope with its definition, and then we'll use the point-slope formula to find the equation:

<u><em>Therefore, the coordinates is (3,1), that is, the value for h(3) is 1.</em></u>

3 0
3 years ago
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Write an expression that I’d equivalent to 1/2a - 4. URGENT, LIMITED TIME.
SCORPION-xisa [38]

Answer:

1/2(a-4)

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7 0
2 years ago
9. Ms. Guzman started a 950-mile trip with a full tank of gas. Her 12-
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Answer:

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3 years ago
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