3 years ago

How to simplify radicals into simplest radical form?

1 answer:

6 0

An example should help :-

Simplify sqrt 20:-

sqrt 20 = sqrt (4 * 5) = sqrt 4 * sqrt5 = 2 sqrt5

cube root of 54 = cube root 27 * cube root 2 = 3 cube root 2

The rule is to factor the number and look for perfect squares or cubes, etc.

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Calculate the mean of the following list of numbers: 3, 5, 2, 10, 6, 3, 7, 3

BabaBlast [244]

Answer:

4.875

Step-by-step explanation:

The mean is the average of all the numbers or all the numbers added up divided by how many numbers so

3+5+2+10+6+3+7+3=39 and there are 8 numbers so

39/8 is 4.875 or 4 7/8

4.875

6 0

3 years ago

2√72 + 5√242 what is the answer for this question please can u tell me the right answer

Radda [10]

Answer:

67 $\sqrt{2}$

Step-by-step explanation:

Assuming you require to simplify the expression.

Using the rule of radicals

$\sqrt{a}$ × $\sqrt{b}$ ⇔ $\sqrt{ab}$

Simplifying the radicals

$\sqrt{72}$ = $\sqrt{36(2)}$ = $\sqrt{36}$ × $\sqrt{2}$ = 6 $\sqrt{2}$

$\sqrt{242}$ = $\sqrt{121(2)}$ = $\sqrt{121}$ × $\sqrt{2}$ = 11 $\sqrt{2}$

Then

2 $\sqrt{72}$ + 5 $\sqrt{242}$

= 2(6 $\sqrt{2}$ ) + 5(11 $\sqrt{2}$ )

= 12 $\sqrt{2}$ + 55 $\sqrt{2}$

= 67 $\sqrt{2}$

6 0

3 years ago

I will mark branliest if correct

marishachu [46]

Answer:

I believe it would be 1

Step-by-step explanation:

6 0

3 years ago

What makes composing functions different from doing an arithmetic operation of two functions such as adding or dividing them?

11111nata11111 [884]

function composition is an operation that takes two functions f and g and produces a function h such that h(x) = g(f(x)). In this operation, the function g is applied to the result of applying the function f to x.

3 0

3 years ago

How is the equation for a vertical line expressed?

DanielleElmas [232]

It is expressed as x=a when a equals the x-intercept.
e.g. a straight vertical line through (0,4) has the equation x=4.

7 0

3 years ago