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NNADVOKAT [17]
3 years ago
12

Help please i’m in the middle of a test

Mathematics
1 answer:
MA_775_DIABLO [31]3 years ago
6 0

Answer:

None of your options

Step-by-step explanation:

(7 - 3i) + ( x - 2i)^2 -(4i^2 + x^2)\\\\(7 - 3i) + (x^2 - 4 - 4xi) - (-4 + x^2)\\\\7 - 3i + x^2 - 4 - 4xi + 4 - x^2\\\\7 -i(3+4x) - 4 + 4 - x^2 + x^2\\\\7 - (4x + 3)i

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Find the value of x
Assoli18 [71]

Step-by-step explanation:

This is an application of the exterior angle theorem.

Angle B + angle C = angle DAB

therefore

32+x=98

solve for x

x=98-32

= 66 degrees


6 0
4 years ago
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Hi can someone help asappppppp
pychu [463]
The most reasonable anwer would probably be D
7 0
3 years ago
A circle has a radius of 6 meters.
Wittaler [7]

Answer:

37.7; B, 36 pi; C

Step-by-step explanation:

Hello!

<u>The formula for finding circumference of a circle is 2πr:</u>

In that case, we can just substitute 6 meters for our radius.

6 × 2π = 12π

12 × 3.14 (about π) = 37.68

That's about 37.7 (when rounded.)

Thusly, the closest option is \boxed{ 37.7 {\text{\:or\:B.}}}.

<u>The formula for finding the area of a circle is πr²:</u>

In that case, we can just substitute 6 meters for our radius. (again.)

6² = 36

36 × π = 36π

Therefore, \boxed{36\pi{\text{\:or\:C}}} is our answer.

<em>brainliest please and thanks (:</em>

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Hope this helps!

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5 0
4 years ago
Can somebody help me <br> -2(x+5)
Anika [276]

Answer: -2x - 10

Steps: -2(x+5)

Apply the distributive law [ a(b + c) = ab + ac ]:

a = -2,  b = x,  c = 5

-2x + (-2) × 5

Apply minus/plus rules: -2x - 2 × 5

Multiply the numbers: 2 × 5 = 10

-2x - 10

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5 0
3 years ago
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X=-9
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3 years ago
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