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3 years ago

How to justify a/b x b/c = a/c?

2 answers:

8 0

A/b times b/c is = ab/bc
which can be written as a/c times b/b
anything over itself is 1 so b/b is one
a/b times b/c = a/c

ale4655 [162]3 years ago

6 0

Well a/b * b/c = ab/bc, and since b/b= 1 you get 1a/c or just a/c :)

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Which equation describes the line with a slope of -3 that contains the point (2,4)?

Ilia_Sergeevich [38]

Answer: y = 2x - 11

Step-by-step explanation:

A linear equation has the following form.

y = a . x + b

where,

y: independent variable

a: slope

x: independent variable

b: y-intercept

The slope is 2, so a is 2. The ordered pair (4, -3) means that when x takes the value 4, y takes the value -3. We can replace these values in the general equation to find the y-intercept.

y = a . x + b

-3 = 2 . 4 + b

b = -11

The linear equation is

y = 2x - 11

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2 years ago

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What is the following sum? Assume x20 and 20.<br> √√x²y³ +2√√x³y² + xy √√y

max2010maxim [7]

The value of the expression $\sqrt{x^2y^3} + 2\sqrt{x^3y^4} + xy\sqrt y$ is $2xy\sqrt{y} + 2xy^2\sqrt{x}$

<h3>How to evaluate the sum?</h3>

The attachment represents the proper format of the question

The summation expression is given as:

$\sqrt{x^2y^3} + 2\sqrt{x^3y^4} + xy\sqrt y$

Expand the radicands

$\sqrt{x^2y^2 * y} + 2\sqrt{x^2y^4* x} + xy\sqrt y$

Evaluate the square roots

$xy\sqrt{y} + 2xy^2\sqrt{x} + xy\sqrt y$

Add the like terms

$2xy\sqrt{y} + 2xy^2\sqrt{x}$

Hence, the value of the expression $\sqrt{x^2y^3} + 2\sqrt{x^3y^4} + xy\sqrt y$ is $2xy\sqrt{y} + 2xy^2\sqrt{x}$

Read more about expressions at:

brainly.com/question/723406

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2 years ago

Which statement is true about the distribution?

Minchanka [31]

The answer is
<span>
The IQR is the best measure of variability because the distribution has an outlier.

Hoped I Helped I did the test</span>

5 0

3 years ago

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Rhianna's movie collection contains 18 movies, including 8 comedies.

garri49 [273]

The answer would be =4 over 9 =4/9 hope this helps

7 0

3 years ago

Write an expression that has 2 as a coefficient. Explain how you know the 2 is a coefficient.

galina1969 [7]

Answer:

2x = 8

Step-by-step explanation:

2 is the coefficient because the coefficient always comes before the variable. In this case the variable is X, and 2 comes right before that signaling that it is (2)(x).

Hope this helps!

6 0

3 years ago