Answer:
see below
Step-by-step explanation:
To find the conjugate of a+bi take the opposite of bi so it would be a - bi
7-3i, the conjugate is 7 + 3i
8+2i the conjugate is 8 -2i
The product of a number and its conjugate is
(a+bi) (a-bi) = a^2 +abi-abi -b^2 i^2 = a^2 - b^2 (-1) = a^2 + b^2
( 4-i) ( 4+i) = 4^2 + 1^2 = 16+1 = 17
( 6+3i)(6-3i) = 6^2 + 3^2 = 36+9 = 45
The answer is: " 60° " .
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" m∠A = 60° " .
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Explanation:
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Note: All triangles, by definition, have 3 (three) sides and 3 (three angles).
The triangle shown (in the "image attached") has three EQUAL side lengths. Therefore, the triangle shown is an "equilateral triangle" and has 3 (three) equal angles, as well.
All triangles by, definition, have 3 (three) angles that add up to "180° " .
Since each of the 3 (three) angles is equal; and the three angles are:
"∠A" , "∠B" , and "∠C" ;
We can find the measure of "∠A" ; denoted as: "m∠A" ; as follows:
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m∠A = 180° ÷ 3 = 60° .
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The answer is: " 60° " .
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m∠A = " 60° " .
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Answer:
16% 1/12 8% 1/20
Step-by-step explanation:
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Answer:
x=-8 x=2
Step-by-step explanation:
x^2 +6x-6 = 10
Subtract 10 from each side
x^2 +6x-6-10 = 10-10
x^2 +6x-16 = 0
Factor
What 2 numbers multiply to -16 and add to +6
8*-2 = 16
8-2 =6
(x+8) (x-2) =0
Using the zero product property
x+8 = 0 x-2 =0
x=-8 x=2