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SSSSS [86.1K]
2 years ago
14

PLZ HELP ill GIVE BRAINIESt!!!!20 Points

Mathematics
1 answer:
shepuryov [24]2 years ago
3 0
She made her mistake at the first step. To simplify a radical, you would find two numbers that multiply by each other to get your original number (under the radical) and have one of the number be a perfect square.

Her reasoning is wrong because 10*10 is not \sqrt{50}. Had she been correct, her answer should have been able to be squared to equal \sqrt{50}

In other words, she should have done \sqrt{25*2}= \sqrt{25} * \sqrt{2}=5 \sqrt{2}
(We used 25 because 25 is a perfect square, 5*5=25).

:)
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Which of the following equations best describes a square root function that is reflected across the x-axis and has a vertex of (
Minchanka [31]

Answer:

C

Step-by-step explanation:

Rather than picking, let's try to construct one from the description.

reflected over the x axis means -\sqrt{x}

the vertex is usually at (0,0), now how do we move a graph?  or in other words  translating it.

To move left and right you use \sqrt{x-h} where if you subtract h you move right and if you add h you move left.  we go from (0,0) to (-4,2).  so 0 to -4 is 4 left, so that means we add 4.

To move up and down we use \sqrt{x}+v Here if v is positive you move up and if v is negative you move down.  going from (0,0) to (-4,2) it moves up 2

So now we put them all together -\sqrt{x+4}+2  And if you look, C matches that exactly.

6 0
3 years ago
Using division to find the ratios that are equivalent to 40:28 and please show the steps.​
makkiz [27]

Answer:

10:7

Step-by-step explanation:

40:28 are both divisible by 4. 40/4 is 10. 28/4 is 7. So the ratio would be 10:7 since neither is divisible by both the same number, this is the final ratio.

4 0
1 year ago
What is mean of 32 48 22
pentagon [3]

Answer:

34

Step-by-step explanation:

32+48+22=102

102/3=34

7 0
3 years ago
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The ______ is the best measure of central tendency when there are extreme values in the distribution.
notka56 [123]
I think Theodosius the best measure. The outliers will not effect the measure. If you use mean, you add all the data points and divide by the number of data points. The extremes will skew the data. If you use mode, that may work also. You find the data that occurs most often.
4 0
2 years ago
I need to see the steps for simplifying 3(m-5)+m​
grigory [225]

Answer:

4m - 15

Step-by-step explanation:

a( x + y) = ax + ay

3( m - 5 ) + m\\\\3m - 15 + m \\\\4m - 15

4 0
3 years ago
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