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3 years ago

PLEASE HELP WITH THIS PLEASE.

Mathematics

1 answer:

Artist 52 [7]3 years ago

7 0

Answer:

1, 7

Step-by-step explanation:

(3+i)(1+2i)

=3+6i+i+2i^2

=3+7i+2i^2

=1+7i

a = 1

b = 7

i^2=-1

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Step-by-step explanation:

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3 years ago

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Step-by-step explanation:

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Where is $a$ is a number between 1 and 10 but not including 10, and b is an integer.

2. The negative exponent indicates the number of places the decimal point must be moved to the left to obtain the number as a decimal number.

3. Keeping this on mind, you can know that: if the exponent of a number written in scientific notation indicates that the decimal point must be moved 5 places to the left and another number written in scientific notation indicates that the decimal point must be moved 2 places to the left, then the first number is smaller than the second one.

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