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Doss [256]
3 years ago
9

Which operation will cancel out division?

Mathematics
1 answer:
emmasim [6.3K]3 years ago
8 0

Answer:

The operation that will cancel out division is multiplication.

Step-by-step explanation:

For example:

\frac{2+5x}{2} \\

*in order to solve for x, and get the upper equation without division, you must multiply by the negative reciprocal*

2*(\frac{2+5x}2} )

4+10x\\

*to get x alone, we must subtract 4 from both sides*

10x = -4\\\\-4 / 10 = - 2/5

x=- 2/5

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Answer:

325 km

Step-by-step explanation:

Given the scale :

1 : 4 ,000, 000

1cm measure in map = 4000000 on the ground

From the map :

Distance between Leeds and London = 8.125 cm

The actual distance on ground can be calculated thus :

1cm = 4,000,000

8.125cm = x

Cross multiply

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Converting to kilometers :

1 km = 100,000 cm

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100,000x = 32500000

x = 32500000 / 100000

x = 325

Hence, actual distance between Leeds and London is 325 km

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Which of the following is(are) true? I. The mean of a population depends on the particular sample chosen. II. The standard devia
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Answer:

II and III

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From statement II in the question, it is true that the standard deviations of two different samples from the same population may be the same. The population standard deviation is a fixed value calculated from every individual in the population.  A sample standard deviation is calculated from only some of the individuals in a population.

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Do the equations y = -6x +4 and y = 4x + 6 have one solution, no solution, or infinitely many solutions
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One solution

Step-by-step explanation:

We know there is only one solution because the lines do not have the same slope, nor are they the exact same line.

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<u>Given</u>:

Given that the figure is a triangular prism.

The length of the prism is 4 m.

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The height of the triangle is 2.25 m.

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<u>Volume of the triangular prism:</u>

The volume of the triangular prism can be determined using the formula,

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Substituting b = 2.5, h = 2.25 and l = 4 in the above formula, we get;

V=\frac{1}{2}(2.5)(2.25)(4)

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3 years ago
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