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Svetach [21]
3 years ago
9

Find the absolute value of the complex number –4.0 – 7.0i. 8.06 8.16 8.6 8.61

Mathematics
1 answer:
FromTheMoon [43]3 years ago
5 0

Answer:

A) 8.06

Step-by-step explanation:

Edge21

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What is the base of a triangle that has a height of 6 centimeters and an area of 18 centimeters? Use the formula , where A repre
harina [27]

Answer:

The base of the triangle is 6cm.

Step-by-step explanation:

The find the base of a triangle, use this formula.

Formula : 1/2 x b x h

<em>If you would like some more explanation, see the attached image.</em>

5 0
3 years ago
solve this system of linear equations. Separate the X- and Y- values with a comma. -9x+2y=-16 19x+3y=41​
Serjik [45]

Answer:

(2, 1)

Step-by-step explanation:

The best way to do this to avoid tedious fractions is to use the addition method (sometimes called the elimination method).  We will work to eliminate one of the variables.  Since the y values are smaller, let's work to get rid of those.  That means we have to have a positive and a negative of the same number so they cancel each other out.  We have a 2y and a 3y.  The LCM of those numbers is 6, so we will multiply the first equation by a 3 and the second one by a 2.  BUT they have to cancel out, so one of those multipliers will have to be negative.  I made the 2 negative.  Multiplying in the 3 and the -2:

3(-9x + 2y = -16)--> -27x + 6y = -48

-2(19x + 3y = 41)--> -38x - 6y = -82

Now you can see that the 6y and the -6y cancel each other out, leaving us to do the addition of what's left:

-65x = -130 so

x = 2

Now we will go back to either one of the original equations and sub in a 2 for x to solve for y:

19(2) + 3y = 41 so

38 + 3y = 41 and

3y = 3.  Therefore,

y = 1

The solution set then is (2, 1)

6 0
3 years ago
Read 2 more answers
M + 6 = 3m + 14<br> Solve?
labwork [276]

Answer:

-6=m

Step-by-step explanation:

m+6=3m+14

-m       -m

6=2m+14

-14      -14

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-12/2=-6

5 0
3 years ago
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How many complex roots does the polynomial equation have?
Olegator [25]

Answer:

2

Step-by-step explanation:

The aquatic equation suggest that 1=1+9-2+69=420 so if you divide that by 69 again you get 2

8 0
3 years ago
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Find the area of the rectangle.
Levart [38]
<h2>Multiply 50 * 14 =700   so the answer is <em><u>700</u></em></h2><h2><em>Hope this helps!</em></h2>
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3 years ago
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