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Ivahew [28]
3 years ago
10

Which values of x and y would make the following expression represent a real number? (6 + 3i)(x + yi)

Mathematics
1 answer:
dexar [7]3 years ago
3 0

Answer:

C. x = 6, y = –3

Step-by-step explanation:

I just took the test and got it right :)

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hichkok12 [17]

Answer:

ill help you what do you need help on tho???

Step-by-step explanation:

4 0
3 years ago
MATH HELP 20 POINTS!!!
sesenic [268]

A) Variable = x ( miles Tim walked )

B)  Tim walked X miles, Molly walked 4+x miles ( 4 more than Tim)

 Equation:  x + x+4 = 10

C) x +x+4 = 10

2x+4 = 10

2x =6

x = 3

D)

 Tim walked 3 miles, Molly walked 7 miles




8 0
4 years ago
Part of a school’s stage is shaped like a sector of a circle, as shown below. The students do not yet know the exact dimensions
Natasha2012 [34]

Answer:

  • 68.78° or 0.6 rad

Step-by-step explanation:

<u>Use the formula:</u>

  • degrees/360° = L/circumference
  • or
  • radians/π = L/circumference

<u>As per given:</u>

l = 12 feet, r = 10 feet

  • degrees = 360°*12/(2*3.14*10) = 68.78°
  • radians = π rad *12/(2π*10) = 0.6 rad
8 0
3 years ago
Find the value of x that will allow you to prove that CD below is parallel to EF if the measure of 21 is
irina1246 [14]

Answer:

23

Step-by-step explanation:

According to the diagram, two sum of <1 and <2 is 180 degrees

Hence 3x+30+81 = 180

3x+111 = 180

3x =180-111

3x = 69

x = 69/3

x = 23

8 0
3 years ago
Need help on this question
miss Akunina [59]

If you divide the first equation by 2 and the second by 3, you get

4x+3=y\\4x-1=y

These equations differ only in their y-intercept, so describe parallel lines. The appropriate choice is ...

... H The lines are parallel.

7 0
3 years ago
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