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RUDIKE [14]
3 years ago
7

The difference between 3 times a number x and 2 is 19. What is the value of x?

Mathematics
1 answer:
Travka [436]3 years ago
6 0

Answer:

7

Step-by-step explanation:

the answer is 7

21 is 3 times 7

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Jane borrows $4000 dollars from her bank.she has a simple interest loan at 5% interest rate and will pay it back over 4 years ho
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4000x.05=200*4= 800
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3 years ago
Identify the quotient in the form a + bi. HELP ASAP PLEASE!!
Step2247 [10]

Solving the expression \frac{4-5i}{2+3i} we get -\frac{7}{13}-\frac{22i}{13}

So, Option A is correct.

Step-by-step explanation:

We need to solve the expression: \frac{4-5i}{2+3i}

Multiplying and dividing by 2-3i

=\frac{4-5i}{2+3i}*\frac{2-3i}{2-3i}\\=\frac{4-5i*2-3i}{2+3i*2-3i}\\=\frac{4(2-3i)-5i(2-3i)}{(2)^2-(3i)^2}\\=\frac{8-12i-10i+15i^2)}{4-9i^2}\\We\,\,know\,\, i^2=-1\\=\frac{8-12i-10i+15(-1)}{4-9(-1)}\\=\frac{8-15-12i-10i}{4+9}\\=\frac{-7-22i}{13}\\=-\frac{7}{13}-\frac{22i}{13}

So, solving the expression \frac{4-5i}{2+3i} we get -\frac{7}{13}-\frac{22i}{13}

So, Option A is correct.

Keywords: Complex numbers

Learn more about Complex numbers at:

  • brainly.com/question/10736268
  • brainly.com/question/4678474

#learnwithBrainly

8 0
3 years ago
Which phrase describes the algebraic expression B2+7?
svp [43]

Answer:

180

Step-by-step explanation:

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A right triangle has a hypotenuse length of 13 units. One leg has a length of 12 units. Which equation can be used to determine
irinina [24]

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Answer:

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The currently accepted method is the moment magnitude scale, which measures the total amount of energy released by the earthquake.

The Richter scale is used to determine the intensity of earthquakes

Step-by-step explanation:

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3 years ago
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