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AleksAgata [21]
3 years ago
9

Show all work to multiply

Mathematics
1 answer:
stiks02 [169]3 years ago
4 0

Answer:

-42+10i

Step-by-step explanation:

*start with the square roots

\sqrt{-25} \\ =5i

\sqrt{-100} \\ = 10i

*then insert values

(2+5i)(4-10i)

*Use FOIL to multiply

2x4 + 2x-10i + 5ix4 + 5ix10i

*Simplify

8-10i+20i+50i(squared)

*Add like terms

-42+10i

*( i squared = -1 )

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David just accepted a job at a new company where he will make an annual salary of $69000. David was told that for each year he s
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Answer:

After 4 years working for the company, he would make $79,000 of salary.

His salary after t years will be:

[te]S(t) = 69000 + 2500t[/tex]

Step-by-step explanation:

David just accepted a job at a new company where he will make an annual salary of $69000. David was told that for each year he stays with the company, he will be given a salary raise of $2500.

This means that after t years, his salary will be given by:

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After 4 years working for the company, he would make $79,000 of salary.

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3 years ago
Find the pair of numbers whose sum is 68 and whose product is a maximum.
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3 years ago
3.2 geometry worksheet
alekssr [168]

Answer/Step-by-step explanation:

5. 21x + 4 = 22x - 2 (corresponding angles)

Collect like terms

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6. (x + 72) + (x + 132) = 180 (linear pair)

x + 72 + x + 132 = 180

Add like terms

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7. 90 = 22x + 2 (vertical angles)

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Divide both sides by 22

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8. 12x + 10 = 13x + 3 (vertical angles)

Collect like terms

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Divide both sides by -1

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9. 17x = 16x + 5 (alternate exterior angles)

17x - 16x = 5

x = 5

✔️17x

Plug in the value of x

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10. 21x - 6 = 20x (corresponding angles)

Add like terms

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✔️20x

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3 0
3 years ago
Counting from 1 to 46, how many 4s will you encounter? 8 10 11 12 14
Ray Of Light [21]

Answer:

11

Step-by-step explanation:

4=1

14=2

24=3

34=4

40=5

41=6

42=7

43=8

44=9

45=10

46=11

You will encounter 11 4s.

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3 years ago
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