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kvasek [131]
2 years ago
13

(8 -2i)^2 a:60 b:68-32i c:60-32i d:64-32i+4i^2

Mathematics
1 answer:
AURORKA [14]2 years ago
8 0

Answer:

60-32i

Step-by-step explanation:

(8-2i)^2=8^2-2.8.2i+(2i)^2

=64-32i+4i^2

=64-32i-4

=60-32i

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8 0
3 years ago
SOMEONE PLEASE HELP ME WITH THIS !!!!!!
dem82 [27]

Answer:

36 stickers

Step-by-step explanation:

7 erasers in each bag

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Equation:

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7 0
2 years ago
Multiply (2x+3) (-x -2)
Marysya12 [62]

Answer:

-2x^{2} -7x-6

Step-by-step explanation:

(2x + 3) (-x - 2)

distribute first term, to the second term:

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multiply:

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-2x^{2} -4x-3x-6

combine the like terms:

-2x^{2} - 4x - 3x - 6

             -7x

-2x^{2} - 7x - 6

final answer :

-2x^{2} - 7x - 6

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6 0
2 years ago
Which statements are true about the toolbox? Select two options.
Amanda [17]

Answer:

Option A and E.

Step-by-step explanation:

It is mentioned that Chiyo has a toolbox having a  rectangular prism shape with a length of 8 inches, width of 15 inches, and height of 6 inches.

In addition to this, A triangular prism with a triangular base with base 8 inches and height 3 inches. The prism has a height of 15 inches.  

So here the shape can be broken into a triangular prism and rectangular prism

Therefore the first option is correct

Now as we know that

Volume of the rectangular prism is

= l×b× h

= 8 × 15 × 6

= 720

And, the volume of the triangular prism is bh

And, the area of the triangular prism is 1 ÷ 2 × b × h

= 1 ÷ 2 × 8 × 3

= 12

Now the volume is

= 12 × 15

= 180

So, the volume of the tool box is

= 720 + 180

= 900

Hence, the last option is correct  

8 0
2 years ago
Can someone help me with this question please? Only give me the right answer please.
IRINA_888 [86]
A ray has one point and goes in one direction forever.

8 0
3 years ago
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