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OleMash [197]
2 years ago
9

Simplify (X-4+2i)(x+5-3i)

Mathematics
1 answer:
iogann1982 [59]2 years ago
6 0
Use distributive property
x^2+x-14+(-x+22)i
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An archaeologist at a dig sets up a coordinate system using string. Two similar artifacts are found one at position (1, 4) and t
myrzilka [38]

Given:

Positions of two artifacts are at points (1, 4) and (5, 2).

To find:

The distance between these two artifacts.

Solution:

Distance formula: The distance between two points is

d=\sqrt{(x_2-x_1)^2+(y_2-y_1)^2}

Using distance formula, the distance between two points (1, 4) and (5, 2) is

d=\sqrt{(5-1)^2+(2-4)^2}

d=\sqrt{(4)^2+(-2)^2}

d=\sqrt{16+4}

d=\sqrt{20}

d=4.4721359

Round to the nearest tenth of a unit.

d\approx 4.5

Therefore, the distance between two artifacts is 4.5 units.

4 0
2 years ago
Hi guys tell me your name (or your nickname )and how many questions you have solved and how many times you have gotten brainiest
iogann1982 [59]

Answer:

my nickname is Kaybe I have answered 74 questions and have been given brainiest 9 times

3 0
2 years ago
I am a number between 78<br> and 88. I have a 3 in the<br> ones place. What number<br> am I?
dezoksy [38]
83, the only number between 78 and 88 that has a 3 in the ones place.

Hope this helps!
3 0
2 years ago
Read 2 more answers
Why would I rewrite this
Ratling [72]

You are finding 3 1/6 - 1 5/6.

To solve, you should first change it so that the numerator of the first fraction is greater than the numerator of the second. Note that both have the same denominator (6). Subtract as usual:

3 1/6 = 2 7/6

2 7/6 - 1 5/6 = 1 2/6

1 2/6 is your answer.

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7 0
3 years ago
Cotθ= tan30° find theta
scoundrel [369]

Answer:

60

Step-by-step explanation:

Cot is the same as 1/tan so:

1/tan(theta) = tan(30)

By rearranging the equation, we get:

1/tan(30) = tan(theta)

By taking the inverse tan, we get:

theta = tan^-1 (1/tan(30)) =60

7 0
2 years ago
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