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3 years ago

11

How to write 1 whole and 2 fiths as a fraction only

2 answers:

BaLLatris [955]3 years ago

7 0

$1 \frac{2}{5} = \frac{(1\cdot5) + 2}{5} = \frac{5+2}{5} = \boxed{\bf{\frac{7}{5}}}$

Juliette [100K]3 years ago

6 0

1 2/5
(5x1)+2=7 soo as an improper fraction that would be 7/5

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What’s the domain and range of:<br> log(√(2x-1) + 3 )<br> Please explain how you got it too!!

Radda [10]

Two main facts are needed here:

1. The logarithm $\log x$ , regardless of the base of the logarithm, exists for $x>0$ .

2. The square root $\sqrt x$ exists for $x\ge0$ .

(in both cases we're assuming real-valued functions only)

By (2) we know that $\sqrt{2x-1}$ exists if $2x-1\ge0$ , or $x\ge\dfrac12$ .

By (1), we know that $\log(\sqrt{2x-1}+3)$ exists if $\sqrt{2x-1}+3>0$ , or $\sqrt{2x-1}>-3$ . But as long as the square root exists, it will always be positive, so this condition will always be met.

Ultimately, then, we only require $x\ge\dfrac12$ , so the function has domain $\left[\dfrac12,\infty)$ .

To determine the range, we need to know that, in their respective domains, $\sqrt x$ and $\log x$ increase monotonically without bound. We also know that $x=\dfrac12$ at minimum, at which point the square root term vanishes, so the least value the function takes on is $\log3$ . Then its range would be $[\log3,\infty)$ .

3 0

3 years ago

Becky bought 11.5 meters of lace to put a border of equal length around the edge of 4 pillow covers. She was left with 2.5 meter

Charra [1.4K]

Probably it's the top sentence

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3 years ago

A student read a 303 –page book in 7 days. The table shows the total number of pages the student had read at the end

DaniilM [7]

To find the average number of pages the student read from day 2 to day 6, add the total pages in these days and divide by 5 days.

<h3>What is the average?</h3>

This is a very common word used in mathematics and stadistics to refer to the mean value in a set of values.

<h3>How to calculate the average from day 2 to day 6?</h3>

Add the pages the person read these days and then divide by 5 (total of days).

For example:

35 + 45 + 10 +25 + 20 = 135 / 5 = 27 pages

Note: This question is incomplete because the table is missing; due to this, the answer is based on general knowledge.

Learn more about average in: brainly.com/question/2426692

7 0

2 years ago

Find the length of each leg. Leave an answer in simplest radical form.

Anna35 [415]

Answer:

$x=8\sqrt{2}$ units

Step-by-step explanation:

The given triangle is an isosceles right triangle.

This implies that, the second leg is also x units.

We use the Pythagoras Theorem to obtain:

$x^2+x^2=16^2$

$2x^2=256$

Divide both sides by 2; to get

$x^2=128$

Take positive square root to get:

$x=\sqrt{128}$

$x=8\sqrt{2}$

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3 years ago

Which arrangement for these numbers is from least to greatest

Ronch [10]

2/9 3/5 5/7 is the correct answer

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3 years ago

Read 2 more answers