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Alekssandra [29.7K]
3 years ago
9

Simplify the expression to a +bi form: (-12+4i)+(2-2i)

Mathematics
2 answers:
ololo11 [35]3 years ago
8 0

Answer:

Step-by-step explanation:

-12 + 2 + 4i - 2i

-10 + 2i

AfilCa [17]3 years ago
7 0

Answer:

-10+2i

Step-by-step explanation:

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Find the distance between the points (-3, 11) and (5, 5).
marshall27 [118]
Formula for distance between two points:

d  = √((x₂-x₁)² + (y₂-y₁)²)

Let point 1 be (-3, 11) and point 2 be (5, 5)

Therefore x₁ = -3, y₁ = 11, x₂ =5, y₂ = 5, and substituting in the formula above.

d = √((x₂-x₁)² + (y₂-y₁)²)

   = √((5- -3)² + (5-11)²)

   = √((5+3)² + (5-11)²)

   = √((8)² + (-6)²)          8² = 8*8 = 64, (-6)² = -6*-6 = 36

   = √(64 + 36)

  = √(100)

  = 10

Distance = 10 units.
5 0
3 years ago
Here is a sketch of y=x^2+bx+c The curve intersects
atroni [7]

Answer:

y = 18  and  x = -2

Step-by-step explanation:

y = x^2+bx+c   To find the turning point, or vertex, of this parabola, we need to work out the values of the coefficients b and c. We are given two different solutions of the equation. First, (2, 0).  Second, (0, -14). So we have a value (-14) for c. We can substitute that into our first equation to find b. We can now plug in our values for b and c into the equation to get its standard form. To find the vertex, we can convert this equation to vertex form by completing the square. Thus, the vertex is (4.5, –6.25). We can confirm the solution graphically     Plugging in  (2,0) :

y=x2+bx+c  

0=(2)^2+b(2)+c  

y=4+2b+c  

-2b=4+c  

b=-2+2c  

Plugging in  (0,−14) :

y=x2+bx+c  

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−16=0+b+c  

b=16−c  

Now that we have two equations isolated for  b , we can simply use substitution and solve for  c .   y=x2+bx+c  16 + 2 = y   y = 18  and  x = -2

4 0
2 years ago
At breakfast yusef drinks 16 ounces of water
satela [25.4K]

Answer:

Step-by-step explanation:

K, but what's the question?

8 0
2 years ago
Read 2 more answers
How to do long division with 540÷36
ehidna [41]


divide 36 into 540    36 will divide into the 54 1 time subtract 36 from 54, that gives you 18, bring down the zero from the number 540, now you have 180 to divide by 36, 36 will divide into 180  five times, so your answer is 15

The answer is 15

7 0
3 years ago
Need help with number 60
vampirchik [111]
You could write 42/20 for #60.
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