20 POINTS FOR YOU!!PLEASE HELP ME I WILL GIVE BRAINLIEST TO THE CORRECT ANSWER

Mathematics

1 answer:

olga nikolaevna [1]3 years ago

7 0

To be supplementary the angles must add up to 180°

the two angles must be a linear pair to be supplementary

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Sqrt of 4a-4 + sqrt of a-1

Monica [59]

$\large\begin{array}{l} \textsf{Simplify the expression (I'm goint to call it E)}\\\\ \mathsf{E=\sqrt{4a-4}+\sqrt{a-1}} \end{array}$

$\large\begin{array}{l} \textsf{So E is a sum of two square roots. Notice that you can factor}\\\textsf{the 4 out on the first one:}\\\\ \mathsf{E=\sqrt{4\cdot a-4\cdot 1}+\sqrt{a-1}}\\\\ \mathsf{E=\sqrt{4\cdot (a-1)}+\sqrt{a-1}}\\\\ \mathsf{E=\sqrt{2^2\cdot (a-1)}+\sqrt{a-1}}\\\\ \mathsf{E=\sqrt{2^2}\cdot \sqrt{a-1}+\sqrt{a-1}}\\\\ \mathsf{E=2\cdot \sqrt{a-1}+\sqrt{a-1}} \end{array}$

$\large\begin{array}{l} \mathsf{E=2\cdot \sqrt{a-1}+1\cdot \sqrt{a-1}}\\\\ \mathsf{E=(2+1)\cdot \sqrt{a-1}}\\\\ \boxed{\begin{array}{l}\mathsf{E=3\cdot \sqrt{a-1}} \end{array}} \end{array}$

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$\large\textsf{I hope this helps. :-)}$

Tags: <em>square root sqrt simplify expression radical irrational algebra</em>

5 0

3 years ago

A total of 28 students have entered a spelling contest there are 6 medal for first through sixth place that will be awarded. In

OLEGan [10]

Since the order of the students selected is important in this item, the concept used for this question is that of the permutation. For this item it is the "permutation of 28 taken 6". This may be mathematically expressed as 28P6. The numerical answer is 271252800. Thus, the answer is letter C.

8 0

3 years ago

Read 2 more answers

What is 222 rounded to the nearest hundred? is it 200?

d1i1m1o1n [39]

Yes it is 200. If its not 5 or more you round down, in this case 50 or more.

5 0

4 years ago

A particular country has an estimated 4760 nuclear weapons out of an estimated total of 15350 nuclear weapons worldwide. The cou

kakasveta [241]

Given that a particular country has an estimated 4760 nuclear weapons out of an estimated total of 15350 nuclear weapons worldwide.

To find the percentage of the nuclear weapon owned by the country we have: