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nlexa [21]
3 years ago
8

From the sum of 5-9i and -4+7i, subtract 14-3i

Mathematics
1 answer:
Kryger [21]3 years ago
5 0

Answer:

Subtract: 5 - 9i = 5-9i  

Add: the result of step No. 1 + (-4) = (5-9i) + (-4) = (5-4) + (-9i) = 1-9i  

Add: the result of step No. 2 + 7i = (1-9i) + 7i = 1 + (-9+7)i = 1-2i

Subtract: 1 - 2i = 1-2i  

Subtract: the result of step No. 1 - 4 = (1-2i) - 4 = (1-4) + (-2i) = -3-2i  

Add: the result of step No. 2 + 7i = (-3-2i) + 7i = -3 + (-2+7)i = -3+5i

Step-by-step explanation:

Correct me if I'm wrong pls and ty :).

Hope this helps.

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Find the missing values in the following figures​
jekas [21]

Answer:

15.

  x = 40/9 = 4 4/9

  z = 24/5 = 4 4/5

17.

  x = 50

  y ≈ 11.5

Step-by-step explanation:

15. Corresponding segments are proportional:

  top right side / whole right side = x / 8

  5/(5+4) = x/8

  x = 8(5/9) = 40/9

  x = 4 4/9

__

  right side bottom / right side top = z / 6

  z = 6(4/5) = 24/5

  z = 4 4/5

____

17. The acute angles are complementary:

  x = 90 -40 = 50

__

From the Pythagorean theorem:

  y = √(15² -9.6²) = √132.84

  y ≈ 11.5

4 0
3 years ago
Pls HELP, im stuck(picture included)
Verdich [7]
Answer is x = (355*r^-35)/7 hope led me know if you have any questions

5 0
3 years ago
Read 2 more answers
Question 8 Multiple Choice Worth 1 points)
bogdanovich [222]

Answer:

Option B.

Step-by-step explanation:

Note: The function f(x) is not in correct format it must be f(x)=3^x.

It is given that two different plants that grow each month at different rates are represented by the functions f(x) and g(x).

Let as consider the two functions,

f(x)=3^x

g(x)=5x+12

Now, table of values is

Month(x)        f(x)=3^x           g(x)=5x+12

    1                      3                          17

    2                     9                         22

    3                     27                        27

    4                     81                        32

From the above table it is clear that in first and second month the height of the f(x) plant is less than of g(x).

In month 3, heights are equal.

In month 4, height of the f(x) plant exceed that of the g(x) plant.

Therefore, the correct option is B.

4 0
3 years ago
Choose the ratio equivalent to 10/9
satela [25.4K]
<h3>Answer:</h3>

30/27, 20/18...

<h3>Solution:</h3>
  • There are <em>infinitely many ratios equivalent to 10/9.</em>
  • Here are <em>some </em>of them:
  • 30/27
  • 20/18
  • 100/90
  • 60/54

Hope it helps.

Do comment if you have any query.

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2 years ago
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klemol [59]
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5^2=x^2+x^2

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x^2=25/2

x=√(25/2)

x=5/√2  now if we rationalize the denominator...

x=(5√2)/(√2√2)

x=(5√2)/2
7 0
3 years ago
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