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navik [9.2K]
3 years ago
13

Add or subtract as indicated and write the result in standard form 3i+(-6-i)

Mathematics
1 answer:
yKpoI14uk [10]3 years ago
5 0

Answer:

B: -6+2i

Step-by-step explanation:

  • 3i + (-6 - i) =                ⇒ open parenthesis
  • 3i - 6 - i =                ⇒ simplify
  • -6 + 2i                     ⇒ answer in standard form of a+bi
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Help - I don’t understand this
Neko [114]

Answer:

z / 7

Step-by-step explanation:

C = O / H

O = z

H = 7

5 0
3 years ago
Figure B is a scaled copy of Figure A.Select all of the statements that must be true:
KatRina [158]

Answer:

B) Figure B has the same number of edges as Figure A

D) Figure B has the same number of angles as Figure A

E) Figure B has angles with the same measures as Figure A

Step-by-step explanation:

we know that

If two figures are similar, then the ratio of its corresponding sides is proportional and its corresponding angles are congruent

In this problem

If Figure B is a scaled copy of Figure A

then

Figure A and Figure B are similar

therefore

<u><em>The statements that must be true are</em></u>

B) Figure B has the same number of edges as Figure A

D) Figure B has the same number of angles as Figure A

E) Figure B has angles with the same measures as Figure A

6 0
3 years ago
Tlachihualtepeti is a pyramid in mexico. each side of the base measures 450 meters and had an original height of 66 meters. How
storchak [24]

Answer:

Basically, we are to determine the volume of that pyramid.

Right Regular Pyramid Volume = (Area of the Base * Height) ÷ 3

Volume = (202,500  * 66) ÷ 3

Volume = 4,455,000 cubic meters

By the way Wikipedia says that is the largest pyramid in the world.

Step-by-step explanation:

3 0
3 years ago
I'm not sure about 38 - 53 please help! :)
Maru [420]
38. 6900 grams
39. 19600 grams
40.
27910 grams
41. 32840 grams
42. 
610 grams
43. 970 grams
44.
3712 grams
45. 8937 grams
46. 
37 grams
47. 69 grams
48.
1510 grams
49. 4700 grams
50. 150 grams
51. 15 grams
52. 15200 grams
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I'm sorry if these are wrong but I hope this could help.
5 0
4 years ago
Read 2 more answers
Subtract 1.05 from a certain number. Multiply the difference by 0.8, add 2.84 to the product then divide the sum by 0.01 and get
attashe74 [19]
Just do the whole process backwards
700*0.01=7
7-2.84=4.16
4.16/0.8=5.2
5.2+1.05=6.25
8 0
3 years ago
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