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saveliy_v [14]
3 years ago
15

What is the approximate value of 12−−√ ? 3.5 2 6 4.5

Mathematics
1 answer:
Annette [7]3 years ago
7 0
The answer is 3.5. Do you need me to explain or is that ok?
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PLS PLS PLS HELP i dont get it
OleMash [197]

we are looking for an equation perpendicular to y = -2x + 5

The form: y = mx + b

Where m is the pending; and b is the product of X1 for m, add the Y1

The pending of a line that is perpendicular to other line is reprical to the pending ot this other line, and with a different sign.

So, the pending of this first line is -2, the reprical is -1/2. We change the sing and we have 1/2

The second line does have a pending of 1/2 (0.5).

So, this second line pass for the point (0,0), so we have the equation:

y - Y1 = m(x - X1)

Where Y1 and X1 are the points y and x where pass the line.

If the line pass for the points 0 and 0, so:

y - 0 = m(x - 0)

And the pending we know is 0.5, so

y - 0 = 0.5(x - 0)

We pass to the form slop-intercept:

y = 0.5x - (0.5*0) + 0

The same that:

<h2>y = 0.5x</h2>

Cause 0+0=0

5 0
3 years ago
Madison reads 24 pages of her book each day. She has read for 9 days &amp; is exactly halfway through reading her book. What is
joja [24]

Answer:

432 pages.

Step-by-step explanation:

We know Madison reads 24pgs/ per day. She reads for nine days, so  she reads 24*9 pages, or 216.

We know also that this is halfway through her book, so 2*216= the whole book, so the book has 432 pages

3 0
3 years ago
Read 2 more answers
A college-entrance exam is designed so that scores are normally distributed with a mean of 500 and a standard deviation of 100.
Crank

Answer: 1.25

Step-by-step explanation:

Given: A college-entrance exam is designed so that scores are normally distributed with a mean(\mu) = 500 and a standard deviation(\sigma) =  100.

A z-score measures how many standard deviations a given measurement deviates from the mean.

Let Y be a random variable that denotes the scores in the exam.

Formula for z-score = \dfrac{Y-\mu}{\sigma}

Z-score = \dfrac{625-500}{100}

⇒ Z-score = \dfrac{125}{100}

⇒Z-score =1.25

Therefore , the required z-score = 1.25

6 0
4 years ago
If l || m, find the value of x
morpeh [17]

Answer:

x = 27°

Step-by-step explanation:

<em>l ║ m    </em>Given

(x + 72) + (3x) = 180°       If parallel line then same-side angles = 180°

4x + 72° = 180°

 4x = 180° - 72°

 4x = 108°

   x = 108°/4

   x = 27°

6 0
3 years ago
What is the sum 2/6+7/6
galben [10]
9/6 or the simplified version is 1 1/2
6 0
3 years ago
Read 2 more answers
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