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Ainat [17]
3 years ago
9

How do you solve 2√31 divided by 2√17 (please describe how)

Mathematics
1 answer:
DochEvi [55]3 years ago
7 0

Answer:

\large\boxed{\dfrac{2\sqrt{31}}{2\sqrt{17}}=\dfrac{\sqrt{527}}{17}}

Step-by-step explanation:

\dfrac{2\sqrt{31}}{2\sqrt{17}}=\dfrac{2\!\!\!\!\diagup^1\sqrt{31}}{2\!\!\!\!\diagup_1\sqrt{17}}=\dfrac{\sqrt{31}}{\sqrt{17}}\cdot\dfrac{\sqrt{17}}{\sqrt{17}}=\dfrac{\sqrt{31\cdot17}}{17}=\dfrac{\sqrt{527}}{17}\\\\\text{Used}\\\\\sqrt{ab}=\sqrt{a}\cdot\sqrt{b}\\\\\sqrt{a}\cdot\sqrt{a}=a

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A piece of pipe is 303/4 inches long. If five pieces, each 41/3 inches long, are cut from the pipe, how many inches of pipe rema
galina1969 [7]
So, what is the total lenght of the pieces that wer cut off?

we multiply the lenght by the number:

4 \frac{1}{3}*5=20+\frac{5}{3}=21\frac{2}{3}

and we subtract this from the original pipe, that is

30\frac{3}{4}-21\frac{2}{3}

we need to bring the two fractions to the same denominator (by multiplying the fraction art in the first by 3 and 4 the second):

30\frac{9}{12}-21\frac{8}{12}=9 \frac{1}{12}

so the correct answer is D!




3 0
3 years ago
25 POINTS!!! The equation y=470x represents the relationship between x, the time that a plane flies in hours, and y, the distanc
sineoko [7]

Answer:

Step-by-step explanation:

For plane A,

Equation that represents the relationship between time 'x' and distance 'y' is,

y = 470x

By comparing this equation with the slope-intercept form of the equation,

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m = slope = 470

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Here, slope represents the speed of plane A.

Therefore, speed of plane A = 470 mi per hour

For plane B,

From the given table,

Slope of the graph = \frac{y_2-y_1}{x_2-x_1}

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Speed of plane B = 480 miles per hour

Since, speed of plane B is more than plane A,

Plane B is flying faster.

8 0
3 years ago
The number of hours, h, spent studying and the score, s, on a test. What is the dependent variable?
Arada [10]

Answer:

The number of hours.

Step-by-step explanation:

The dependent variable is what you are mesuaring.

7 0
3 years ago
Plz really ned help on this really easy!! simplify: 4(5x + 12) Thank you all in advance!!!
Katarina [22]
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4 0
3 years ago
Suppose f (x) = x^3 . Find the graph of f (x + 1)
ira [324]

Answer:

its 3rd graph, the one with (-1,0) point

3 0
4 years ago
Read 2 more answers
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