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neonofarm [45]
4 years ago
5

Someone please help me with this question I need it ASAP

Mathematics
1 answer:
ZanzabumX [31]4 years ago
6 0

Your question has been heard loud and clear.

First one (x+2i)(x-2i) = x^2+4

Second one (x-2+2i)(x-2-2i) = x^2-4x+8

Third one (x+1+i)(x+1-i) = x^2+2x+2

Thank you

Edit: Sorry for taking 15 minutes I was calculating lol

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A large asteroid crashed into a moon of a planet, causing several boulders from the moon to be propelled into space toward the p
Mila [183]

Answer:

B


Step-by-step explanation:

You can see from the sequence 26, 44, 62, 80,.... that each term after the first is 18 larger than the previous term.

<u>The first 4 seconds' distance is given</u>, so

  • 5th second distance is 80+18=98
  • 6th second distance is 98+18=116
  • 7th second distance is 116+18=134

To find total distance for 7 seconds, we add up all the individual distances:

26+44+62+80+98+116+134=560


Answer choice B is right.

6 0
3 years ago
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What is 0.0000007 in standard form
hoa [83]

Answer:

Step-by-step explanation:

Scientific form of 0.0000007 = 7 × 10^{-7}

8 0
3 years ago
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At the deli, 2 turkey subs and 5 veggie subs cost $29. 4 turkey subs and 3 veggie subs cost
MrMuchimi

Answer:

4/9 of sales are veggie 5/9 are turkey

4/(4+5)=4/9

5/(4+5)= 5/9

4/9 x 27 = 12

5/9 x 27 = 15

12 veggie subs sold and

15 turkey subs sold

12+15=27 total sold

Step-by-step explanation:

3 0
3 years ago
A polling company reported that ​% of surveyed adults said that Complete parts​ (a) through​ (d) below.
SOVA2 [1]

Answer:

a) 376.66

b) Option 2: No, the result from part (a) could not be the actual number of adults who said that rising gas prices are "quite annoying" because a count of people must result in a whole.

c) 377

d) 40.77%

Step-by-step explanation:

a) 37% of 1018 is;

37/100 × 1018 = 376.66

b) Thus, the result in a above is not a whole number. Thus;

No, the result from part (a) could not be the actual number of adults who said that rising gas prices are "quite annoying" because a count of people must result in a whole.

c) from a above a, we got a value of 376.66.

Now the actual number would be preferably an integer. Thus, actual number is approximately 377.

d) percentage of respondents said that cellular phones are not at all harmful = 415/1018 × 100% = 40.77%

8 0
3 years ago
Which is a good comparison of the estimated sum and the actual sum of 7 9/12 + 2 11/12
Verizon [17]
7 + 2 = 9  and 9/12 + 11/12 = 20/12 = 1 8/12 = 1 2/3

9 + 1 2/3 = 10 2/3
4 0
3 years ago
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