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ddd [48]
3 years ago
13

"absmiddle" class="latex-formula">
​
Mathematics
2 answers:
vivado [14]3 years ago
8 0

Answer:

<em>i</em>

Step-by-step explanation:

Simplify the following:

sqrt(-1)

By definition, sqrt(-1) = i:

Answer:  <em>i</em>

tiny-mole [99]3 years ago
4 0
I. .....,,,,,,...........,,,??,.
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Mkey [24]

Answer:

  x = 42

Step-by-step explanation:

The marked angles are supplementary, so their sum is 180°.

  (2x +8) +(2x +4) = 180

  4x +12 = 180 . . . . . . . . . simplify

  x +3 = 45 . . . . . . . divide by 4 (because we can)

  x = 42 . . . . . . subtract 3

_____

<em>Additional comment</em>

A "two-step" linear equation like this one is usually solved by subtracting the unwanted constant, then dividing by the coefficient of the variable. Here, we have done those steps in reverse order. This makes the numbers smaller and  eliminates the coefficient of the variable. Sometimes I find it easier to solve the equation this way.

5 0
2 years ago
Complete the equation so it has infinitely many solutions.
ANEK [815]

Answer:

2)27

Step-by-step explanation:

18+3(3+5x)=15x+____

18+9+15x is still the same as 15x+____

so 27+15x is =15x+27

hope I helped mark as brainliest answer

7 0
2 years ago
Callie has $24.65 to spend on groceries. After buying 6 potatoes, she had $18.95 left. If each potato costs the same amount, wha
Finger [1]
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4 0
3 years ago
Read 2 more answers
Find the length of the segment indicated.<br><br> A. 16.4<br> B. 11.4<br> C. 12.1<br> D. 13.3
kykrilka [37]

using Pythagorean triplet

\\ \sf\longmapsto P^2=H^2-B^2

\\ \sf\longmapsto x^2=19.6^2-15.4^2

\\ \sf\longmapsto x^2=384.16-237.16

\\ \sf\longmapsto x^2=147

\\ \sf\longmapsto x=\sqrt{147}

\\ \sf\longmapsto x=12.1

4 0
2 years ago
Math riddle! Correct answer gets brainliest!<br><br> Answer with what x and y are equal to.
RSB [31]

Answer:

\displaystyle [9, 4\frac{1}{2}]

Step-by-step explanation:

I figure these exercises out by numeric association. I see a 3, so I know right away that there <em>might</em> be a 9 somewhere. So, you start by plugging 3 in for \displaystyle x, THEN plug \displaystyle 1\frac{1}{2} in for \displaystyle y sinse there are <em>twise</em><em> </em>the quantity of \displaystyle y than there are of \displaystyle x. Now, doing so will give you \displaystyle 24 ≠ 18. This tells you to try another pattern, so go with plugging \displaystyle 4\frac{1}{2} in for \displaystyle y and \displaystyle 9 in for \displaystyle x. Doing so gives you what you are looking -- \displaystyle 36 = 36. Therefore, the association wourked perfectly. ☑

I am joyous to assist you at any time.

8 0
2 years ago
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