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3 years ago

How to add fractions with different denominators khan academy?

2 answers:

8 0

You have to find the least common denominator between the two fractions. if you had 1/2 + 1/4 then the lcd is 4 so you multiply both the top and the bottom by 4. you get 2/4+ 1/4. Then you add across the top and get 3/4.

Cerrena [4.2K]3 years ago

7 0

You have to find the LCD with the two fractions. Then you add the numarator an the denominator of the fraction.

<h2><em><u>Hope it helped</u></em></h2>

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A container contains 12 diesel engines. The company chooses 5 engines at random, and will not ship the container if any of the

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Answer: $\frac{^{10}C_5}{^{12}C_5}$

Step-by-step explanation:

Given a total of 12 diesel engines

out of which 2 are defective

Company have to choose 5 good engines to ship.

Therefore no of ways in good engines are selected is $^{10}C_5$

no of ways in which any 5 engines are selected from a total of 12 engines is

$^{12}C_5$

Therefore the required probability = $\frac{^{10}C_5}{^{12}C_5}$

= $\frac{7}{22}$ =0.318

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3 years ago

Find the slope of the line passing through the points (-4, -2) and (6, -2).

Tems11 [23]

Answer: (-4, -2) and (6, -2)'s slope is 0, (2,9) and (2, -5)'s is undefined

Step-by-step explanation:

bro its not that hard, y1-y2 divided by x1-x2

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2 years ago

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Answer:

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Step-by-step explanation:

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3 years ago

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s344n2d4d5 [400]

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Get a calculator a graphing calculator and insert each one of those in it

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3 years ago

Lines that are tangent to a circle are

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Step-by-step explanation:

Lines that are tangent to a circle are perpendicular to the radius of the circle.

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