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forsale [732]
2 years ago
11

Which of the following statement is true?

Mathematics
2 answers:
shtirl [24]2 years ago
7 0
Both are irrational. pick the first option.
sladkih [1.3K]2 years ago
6 0

Answer:

The correct option is 1.

Step-by-step explanation:

If a number is defined as \frac{p}{q}, where p and q are distinct integers and q≠0, then it is called a rational number.

For example: 0.2, 3/4, 5%.

If a number can not be defined as \frac{p}{q}, where p and q are integers and q≠0, then it is called an irrational number.

For example: √2, √3, √(0.3).

The given numbers can be written as

\sqrt{15}=\sqrt{3\times 5}=\sqrt{3}\sqrt{5}

Since \sqrt{15} is the product of two irrational numbers \sqrt{3}\text{ and }\sqrt{5}, therefore \sqrt{15} is an irrational number.

\sqrt{0.001}=\sqrt{\frac{1}{1000}}=\frac{1}{10\sqrt{10}}

If any numbers is divisible by an irrational number, then the resultant number is irrational. So, \sqrt{0.001} is an irrational number.

Both \sqrt{15} and \sqrt{0.001} are irrational. Therefore the correct option is 1.

You might be interested in
How is the graph of the parent function of y = 3√x transformed to produce the graph y = 3√1/2x? It is horizontally stretched by
inna [77]

The graph of the parent function is horizontally stretched by a factor of \frac{1}{2} ⇒ 1st answer

Step-by-step explanation:

Let us revise some transformation

A horizontal compression (or shrinking) is the squeezing of the graph toward the y-axis.  

A horizontal stretching is the stretching of the graph away from the y-axis  

  • If k > 1, the graph of y = f(k•x) is the graph of f(x) horizontally shrunk (or compressed) by dividing each of its x-coordinates by k.
  • If 0 < k < 1 (a fraction), the graph of y = f(k•x) is the graph of f(x) horizontally stretched by dividing each of its x-coordinates by k
  • If k should be negative, the horizontal stretch or shrink is followed by a reflection across the y-axis

A vertical stretching is the stretching of the graph away from the

x-axis  

A vertical compression (or shrinking) is the squeezing of the graph toward the x-axis.  

  • If k > 1, the graph of y = k•f(x) is the graph of f(x) vertically stretched by multiplying each of its y-coordinates by k.
  • If 0 < k < 1 (a fraction), the graph of y = k•f(x) is the graph of f(x) vertically shrunk (or compressed) by multiplying each of its y-coordinates by k
  • If k should be negative, the vertical stretch or shrink is followed by a reflection across the x-axis.  

∵  y=3\sqrt{x} is a parent function

∵ Its graph transformed to produce the graph of y=3\sqrt{\frac{1}{2} x}

- That means x is multiplied by a factor k, then it is compressed

   or stretched horizontally

∵ k = \frac{1}{2}

- The factor \frac{1}{2} is between 0 and 1, then it is

   stretched horizontally as the second rule above

∴ The graph of the parent function is stretched horizontally by a

   factor of \frac{1}{2}

The graph of the parent function is horizontally stretched by a factor of \frac{1}{2}

Look to the attached figure for more understand

Learn more:

You can learn more about transformation in brainly.com/question/9381523

#LearnwithBrainly

4 0
2 years ago
Ella completed the following work to test the equivalence of two expressions. '
Romashka [77]

Answer:

The expressions are not equivalent because Ella did not know that you can’t use substitution to test for equivalence.

Step-by-step explanation:

<u>Equivalent algebraic expressions </u> are those expressions which on simplification give the same resulting<u> expression.</u>

Two algebraic <u>expressions</u> are said to be equivalent if their values obtained by substituting any values of the variables are same.

Two expressions 3f+2.6 and 2f+2.6 are not equivalent, because when f=1,

3f+2.6=3.1+2.6=3+2.6=5.6

2f +2.6=2.1+2.6=2+2.6=4.6

5.6≠   4.6

Method of substitution can only help her to decide the expresssions are not equivalent, but if she wants to prove the expressions are equivalent, she must prove it for all values of f.

3f+2.6=2f+2.6

3f=2f

3f-2f=0

f=0

This is true only when f=0.

Hence,

The expressions are not equivalent because Ella did not know that you can’t use substitution to test for equivalence.

this what i know

8 0
2 years ago
Brandon is filling a flower bed with soil. The flower bed is shaped like a rectangular prism and measures 15 feet long and 3 fee
zloy xaker [14]

Answer:

9 meters

Step-by-step explanation:

I don't know step by step if jts wrong tell me.

8 0
2 years ago
Pete took a sample of moviegoers to see how many are seeing a comedy. Sample size: 175 Number seeing a comedy: 42 Population: 1,
Anastaziya [24]

Answer: Part A : c = n.p

Part B = 366 moviegoers

Step-by-step explanation: In part A, to predict the number of moviegoers, we have to find the <u>proportion</u> of the sample that does the activity, which will called <u>p</u>. Since <u>p</u> is a percentage, to determine how many moviegoers are seeing a comedy, you multiply it by the sample size, <u>n</u>.

Therefore: c = n.p

For part B, based on the the sample:

p = \frac{42}{175} = 0.24

The total population is given: 1,525

c = 0.24.1,525

c = 366

Based on the sample, <u>366</u> <u>people</u> are seeing a comedy.

3 0
2 years ago
Determine whether the lines are parallel, intersect, or coincide. x-5y=0, y+1=1/5(x+5)
MAXImum [283]

<u>Answer-</u>

<em>The lines are two </em><em>coinciding lines</em><em> or the </em><em>same lines</em><em>.</em>

<u>Solution-</u>

The given line equations are

the first one,

\Rightarrow x-5y=0  

the second one,

\Rightarrow y+1=\dfrac{1}{5}(x+5)\\\\\Rightarrow 5y+5=x+5\\\\\Rightarrow 5y=x\\\\\Rightarrow x-5y=0

As we know two line equations A_1x+B_1y+C_1=0 and A_2x+B_2y+C_2=0 will be,

  1. Parallel if, \dfrac{A_1}{A_2}=\dfrac{B_1}{B_2}
  2. Coincide if, \dfrac{A_1}{A_2}=\dfrac{B_1}{B_2}=\dfrac{C_1}{C_2}
  3. Intersect if, \dfrac{A_1}{A_2}\neq \dfrac{B_1}{B_2}

As here,

\Rightarrow \dfrac{A_1}{A_2}=\dfrac{B_1}{B_2}=\dfrac{C_1}{C_2}

\Rightarrow \dfrac{1}{1}=\dfrac{-5}{-5}

(C₁ and C₂ aren't considered as they are 0)

Therefore, the lines are two coinciding lines or the same lines.

4 0
2 years ago
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