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Gennadij [26K]
3 years ago
7

Find the product. (8 − 3i)(5 − 2i)

Mathematics
1 answer:
Delicious77 [7]3 years ago
7 0

Answer:

34 - 31i

Step-by-step explanation:

first, distribute to get 40 - 16i - 15i + 6i^2. i^2 = -1 so 6(-1) is -6. simplify to get 34 -31i

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A person is watching a boat from the top of a lighthouse. The boat is approaching the lighthouse directly. When first noticed, t
7nadin3 [17]

To solve this problem, we can use the tan function to find for the distances covered.

tan θ = o / a

Where,

θ = angle = 90° - angle of depression

o = side opposite to the angle = distance of boat from lighthouse

a = side adjacent to the angle = height of lighthouse = 200 ft

When the angle of depression is 16°18', the initial distance from the lighthouse is:

o = 200 tan (90° - 16°18')

o = 683.95 ft

When the angle of depression is 48°51', the final distance from the lighthouse is:

o = 200 tan (90° - 48°51')

o = 174.78 ft

 

Therefore the total distance the boat travelled is:

d = 683.95 ft - 174.78 ft

<span>d = 509.17 ft</span>

4 0
3 years ago
Select all the correct answers.
Fofino [41]

Use Ga_thMath(u) (brainly doesn't allow me to type it) To use the app u need to take a pic of the problem and then it will process it and you'll get ur answer ASAP(most of the time). Many questions have been asked before so search it on brainly.

6 0
3 years ago
3/14 - 1/7= how much
Fofino [41]
3/14 - 1/7 
= 3/14 - 2/14
= 1/14

so, 3/14 - 1/7 = 1/14
7 0
4 years ago
Read 2 more answers
A flagpole 1400 cm tall is how many meters tall?
iogann1982 [59]
Your answer would be 14 meters
4 0
3 years ago
I NEED HELP PLZ IM STUCK
stepladder [879]

Answer:

$1095

Step-by-step explanation:

15/100×7300

cancel the two zeros after the number 100 and 73= 15/1×73=1095

4 0
3 years ago
Read 2 more answers
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