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nordsb [41]
2 years ago
13

Rationalize the denominator of square root of negative 4 over open parentheses 7 minus 3 i close parentheses plus open parenthes

es 2 plus 5 i
Mathematics
2 answers:
Naily [24]2 years ago
6 0

Answer:

sqrt(-49) / [ (7-2i) - (4+9i) ]

= 7i / (3 - 11i)

= 7i (3+11i) / [ (3 - 11i) (3 + 11i) ]

= (21 i - 77) / (9 + 121) = choice (d), (-77 + 21i) / 130

Step-by-step explanation:

:) hope i helped

Elenna [48]2 years ago
3 0

Answer:

quantity of 16 plus 18 i over 145

Step-by-step explanation:

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Unknown angle problems (with ale<br> Solve for I in the diagrarn below.<br> (24 + 45)<br> f<br> TE
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Answer:

x = 45

Step-by-step explanation:

The angles with (2x + 45) and x are supplementary angles, meaning they add up to 180°. We can write this statement as an algebraic equation of 2x + 45 + x = 180 and solve it.

Step 1: Combine like terms.

  • (2x+x)+45=180
  • 3x+45=180

Step 2: Subtract 45 from both sides.

  • 3x + 45 - 45 = 180 - 45
  • 3x = 135

Step 3: Divide both sides by 3.

  • 3x/3 = 135/3
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Step 4: Check if solution is correct.

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Therefore, x = 45.

Have a lovely rest of your day/night, and good luck with your assignments! ♡

8 0
2 years ago
Sophia buys an apple that weighs 0.45 pound, a grapefruit that weighs pound, a navel orange that weighs pound, and a pear that w
Tanzania [10]

Answer:

The order of fruit from least to greatest weight is -

Apple , pear, navel orange, grapefruit

Step-by-step explanation:

P.S - The exact question is -

Given - Sophia buys an apple that weighs 0.45 pound, a grapefruit that weighs \frac{3}{4} pound, a navel orange that weighs \frac{5}{8} pound, and a pear that weighs 0.5 pound.

To find - What is the order of the fruit from least weight to the greatest weight ?

Proof -

Weight of apple = 0.45 pound

Weight of grapefruit = \frac{3}{4} pound = 0.75 pound

Weight of navel orange = \frac{5}{8} pound = 0.625 pound

Weight of a pear = 0.5 pound

As,

0.45 < 0.5 < 0.625 < 0.75

So, The order of fruit from least to greatest weight is -

Apple , pear, navel orange, grapefruit

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Answer:

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It’s B I did this question and got the same answer
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