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Kamila [148]
4 years ago
12

Which equation illustrates the identity property of multiplication? (a + bi) × c = (ac + bci) (a + bi) × 0 = 0 (a + bi) × (c + d

i) = (c + di) × (a + bi) (a + bi) × 1 = (a + bi)
Mathematics
2 answers:
labwork [276]4 years ago
8 0

Answer:

(a + bi) \times 1 = (a + bi)

Step-by-step explanation:

The identity property means that whatever you put in is whatever comes out. Notice that if we multiply 1 with any number, we get that number back. So multiplying by 1 is the identity property of multiplication.

tamaranim1 [39]4 years ago
5 0

Answer:

The answer is (a+bi)*1=(a+bi)

Step-by-step explanation:

The multiplicative identity property says that the product of any number or expression and one is the number or the expression, in this case the expression that meets the property is:

(a+bi)*1=(a+bi)

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Explain the differences between a parallelogram and a rectangle.​
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Answer:

<u>Similarities</u><u> between a parallelogram and a rectangle</u>

  • Quadrilateral (4-sided, two dimensional shape)
  • Opposite sides are equal and parallel to each other
  • Sum of all the interior angles is 360°
  • Diagonals bisect each other
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  • Opposite angles are equal

<u>Differences</u><u> between a parallelogram and a rectangle</u>

  • A rectangle has four equal interior angles (each are 90°) whereas only the opposite angles in a parallelogram are equal.
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All rectangles are parallelograms since the opposite sides of a rectangle are parallel, but all parallelograms are not rectangles.

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Whats the distance between -2, -3 and 3,4
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Answer:

5, 7

Step-by-step explanation:

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Write 18/27 in simplest form.
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The simplest form of 18/27 is 2/3
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3 years ago
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Kalino earned 85, 95, 93, and 80 points on the 4 tests, each worth 100 points, given so far this term. How many points must he e
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Answer:

Kalino would need to earn at least a 97 on his fifth test.

Step-by-step explanation:

The average is calculated by adding up the amounts earned on each test and dividing by the total number of tests.  In this case, the score for the last test is not known, but the expected average of 90 points is, so we can set up an equation to solve for the unknown test value:

\frac{85+95+93+80+x}{5} =90

'x' represents the score of the fifth test.  Using inverse (opposite) operations and doing the same operation to both sides of the equation, we can first multiply both sides by 5:

\frac{353+x}{5} x 5 = 90 x 5

353 + x = 450, now subtract 353 from both sides: 353 -353 + x = 450 - 353

x = 97

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4 years ago
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At art class, Mr. Gibson spends 5 minutes giving instructions, 35 minutes working on the project, and 15 minutes cleaning up. If
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Answer:

2:10 PM

Step-by-step explanation:

5+35+15=55 mins

1:15+55 mins=2:10PM

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