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mina [271]
3 years ago
7

Simplify the expression to a + bi form: (-7 - 3i) + (-5 + 10i)

Mathematics
2 answers:
Harman [31]3 years ago
6 0

Answer:

-12+7i

Step-by-step explanation:

(-7-3i)+(-5+10i)

-7-3i-5+10i

-7-5-3i+10i

-12-3i+10i

-12+7i

Please mark me as Brainliest if you're satisfied with the answer.

nignag [31]3 years ago
6 0

Answer:

→( - 7 - 3i) +( -  5 + 10i) \\  =  - 7 - 3i - 5 + 10i \\  =  -  7 - 5 - 3i + 10i \\  =  \boxed{ - 12 + 7i}✓

  • -<u>12 + 7i</u> is the right answer.
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Area= 169(pie)mm(squared)<br><br> What's the radius and diameter
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Can somebody plz help answer these last questions correctly (only if u know how to do this) if u can answer the because ones too
natima [27]

Answer:

∠e = 105° because ∠e and the 105° angle are vertically opposite angles

∠h = 75° because ∠h and the 105° angle are supplementary angles

∠f = ∠h = 75° because ∠f and ∠h are vertically opposite angles

∠c = 105° because ∠c and the 105° are corresponding angles

∠b = 75° because ∠b and ∠f are corresponding angles

∠a = 105° because ∠a and ∠e are corresponding angles

∠d = 75° because ∠d and ∠h are corresponding angles

Step-by-step explanation:

The given diagram includes two parallel lines having a common transversal that crosses both (parallel) lines

By sing angle properties, we have;

∠e = 105° because ∠e and the 105° angle are vertically opposite angles formed by the same two straight lines and are therefore always equal

∠h = 180° - 105° = 75° because ∠h and the 105° angle are angles that form a straight line and are therefore supplementary angles which are angles that sum up to 180°. Therefore, ∠h + 105° = 180°, therefore ∠h = 75°

∠f = ∠h = 75° because ∠f and ∠h are vertically opposite angles

∠c = 105° because ∠c and the 105° are corresponding angles and corresponding angles are equal

Similarly, we have;

∠b = ∠f = 75° because ∠b and ∠f are corresponding angles

∠a = ∠e = 105° because ∠a and ∠e are corresponding angles

∠d = ∠h = 75° because ∠d and ∠h are corresponding angles

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2 years ago
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The square root of 64 is 8 and the square root of 100 is 10.... so,

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3 years ago
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10.49 (5 or more round up)
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3 years ago
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