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AlekseyPX
3 years ago
15

(6-7i)+(5+4i)= (simplified)

Mathematics
2 answers:
GarryVolchara [31]3 years ago
8 0

Answer:

11-3i

Step-by-step explanation:

6-7i+5+4i=6+5-7i+4i=11-3i

Blizzard [7]3 years ago
6 0

Answer:

(-1i)+(9i)

in the brackets you minus 7 from 6 which takes it to -1i.

Next you add 5 and 4i to get to 9i.

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Which net folds to make the prism shown?<br><br> 2nd picture has the letter choice
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C

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NeTakaya

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The slope is 5x and the y-intercept is -7

Step-by-step explanation:

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What is the area of the triangle?
ArbitrLikvidat [17]

9514 1404 393

Answer:

  7 square units

Step-by-step explanation:

There are several ways the area of triangle EBD can be found.

  • find the lengths EB, BD, DE and use Heron's formula (messy due to roots of roots being involved).
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  • figure the area from the coordinates of the vertices.
  • use Pick's theorem and count the dots.

We choose the latter.

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Pick's theorem says the area of a polygon can be found as ...

  A = i + b/2 -1

where i is the number of grid intersection points interior to the polygon, b is the number of grid points intersected by the border.

The attached figure shows the lines EB, BD, and DE intersect one point in addition to the vertices. So, b=4. A count of the red dots reveals 6 interior points (i=6). So, the area is ...

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4 0
2 years ago
Order the following from greatest to least 1/4, 0.33, 1/8, 0
schepotkina [342]

Answer: 0.33 , 1/4 , 1/8 , 0

Step-by-step explanation:

1/4 is 0.25

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After converting to decimal it’s all easy

4 0
3 years ago
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P(1 head) = 3 ways out of 8 or 3/8

P(0 heads) = 1 way out of 8 or 1/8

x=Winnings  P(x)  E(x)=x�P(x)

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  -$10      1/8     -$1.25

---------------------------

Total expectation =   $ .25

7 0
2 years ago
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