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lyudmila [28]
2 years ago
8

What property is (3x+7)+(2x+8)=3x+7+2x+8

Mathematics
1 answer:
Alex_Xolod [135]2 years ago
4 0

Answer:

distributive property

Step-by-step explanation:

(3x + 7) + (2x + 8)

each of the parenthesis has a multiplier of 1 , placed outside the parenthesis.

then multiplying the terms inside the parenthesis by 1 gives

3x + 7 + 2x + 8

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victus00 [196]

Answer:

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Step-by-step explanation:

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4 0
3 years ago
Suppose z = . What is z4?<br><br> on EDGE 2020
Free_Kalibri [48]

Answer:

z^{4} = \cos \frac{8\pi}{3}+i\,\sin \frac{8\pi}{3}

Step-by-step explanation:

We can determine the power of a complex number by the De Moivre's Theorem, which states that for all z = r\cdot (\cos \theta + i\,\sin\theta), where a, b \in \mathbb{R}, the power of the complex number is:

z^{n} = r^{n}\cdot (\cos n\theta + i\,\sin n\theta) (1)

Where:

r - Magnitude of the complex number, dimensionless.

\theta - Direction of the complex number.

If we know that r = 1, n = 4 and \theta = \frac{2\pi}{3}, then the fourth power of the complex number is:

z^{4} = 1^{4}\cdot \left[\cos\left(\frac{8\pi}{3} \right)+i\,\sin\left(\frac{8\pi}{3}\right)\right]

z^{4} = \cos \frac{8\pi}{3}+i\,\sin \frac{8\pi}{3}

5 0
3 years ago
Read 2 more answers
The distance between 1 - 10 1/4
Pani-rosa [81]

The distance between 1 - 10 1/4​

____________________

1 - 10 1/4 = -9 1/4

_________________________

Answer

-9 1/4

9 1/4 (in absolute value)

5 0
2 years ago
Read 2 more answers
Please help helppp :((((
ella [17]

Answer:

m∠Q = 61°

m∠S = 61°

m∠R = 58°

Step-by-step explanation:

Since we have an isosceles triangle, we know that ∠Q and ∠S are congruent.

Step 1: Definition of isosceles triangle

2x + 41 = 3x + 31

41 = x + 31

x = 10

Step 2: Find m∠Q

m∠Q = 2(10) + 41

m∠Q = 20 + 41

m∠Q = 61°

Step 3: Find m∠S

Since m∠Q = m∠S,

m∠S = 61°

Step 4: Find m∠R (Definition of a triangle)

Sum of angles in a triangle adds up to 180°

m∠R = 180 - (61 + 61)

m∠R = 180 - 122

m∠R = 58°

4 0
3 years ago
Finding first six terms of a sequence
Jlenok [28]
2, 4, 6, 8, 10, 12


difference is 2
6 0
4 years ago
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