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bekas [8.4K]
4 years ago
14

What is the solution of the system? Use elimination.

Mathematics
1 answer:
Ghella [55]4 years ago
7 0
{ 5 x - y = 20
  2 x + y = 15
_____________
7 x = 35

x = 35 / 7

x =  5

For y :

2 x + y = 15

2*(5) + y = 15

10 + y = 15

y = 15 - 10

y = 5

Answer A  ( 5,5 )

hope this helps!

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all the cakes Jenny baked that week were party cakes, 1 5 were fruit cakes, and the remainder were sponge cakes.
Fiesta28 [93]
It's bout to be lit with all those cakes
3 0
3 years ago
(sqrt3-sqrt3i)^4
Ludmilka [50]

The increasing order of the complex numbers is (√2 - i)⁶ < (√2 - √2i)⁸ = (√3 - i)⁶ =  (-1 + √3i)¹² < (√3 - √3i)⁴.

<h3>Absolute values of the complex numbers</h3>

The absolute values of the complex numbers are determined as follows;

(sqrt3-sqrt3i)^4 = (√3 - √3i)⁴

|z| = \sqrt{(\sqrt{3} )^2 + (\sqrt{3 }\times1 )^2} } \\\\|z| = \sqrt{6}

(-1+sqrt3i)^12 = (-1 + √3i)¹²

|z| = \sqrt{(-1)^2 + (\sqrt{3)^2} } \\\\|z| = \sqrt{4} \\\\|z| = 2

(sqrt 3-i)^6 = (√3 - i)⁶

|z| = \sqrt{(\sqrt{3})^2 + (-1)^2 } \\\\|z| = \sqrt{4} \\\\|z| = 2

(sqrt2-sqrt2i)^8 = (√2 - √2i)⁸

|z| = \sqrt{(\sqrt{2} )^2 + (\sqrt{2})^2 } \\\\|z| = 2

(sqrt2-i)^6 = (√2 - i)⁶

|z| = \sqrt{(\sqrt{2})^2 + (-1)^2} } \\\\|z| = \sqrt{3}

Increasing order of the complex numbers;

(√2 - i)⁶ < (√2 - √2i)⁸ = (√3 - i)⁶ =  (-1 + √3i)¹² < (√3 - √3i)⁴.

Learn more about complex numbers here: brainly.com/question/10662770

#SPJ1

3 0
3 years ago
Which terms of the AP: 213, 207, 201… is its last positive term?
riadik2000 [5.3K]

Answer: the last pos term is 3

Details:

213

207

201

195

189

183

177

171

165

159

153

147

141

135

129

123

117

111

105

99

93

87

81

75

69

63

57

51

45

39

33

27

21

15

9

3

-3


5 0
4 years ago
In 2012 William bought a new boat for $28,500 if the value of the boat declined by 8% each year find the value of the boat in 20
nikklg [1K]

Answer:

$17,281.12

Step-by-step explanation:

28,500 * (.92)^x

x - amount of years after 2012

.92 - 100-8 = 92 which is the percent of the price the previous year

Calculator needed.

28,500 * .92^6

28,500 * ~.60636

17,281.1175383

Round up to 17,281.12

8 0
4 years ago
What are the coordinates of the point?
kenny6666 [7]
D -2, 4 is in the second quadrant because the -x brings it to the left side and the positive 4 puts it in the upper of the left side which is the second quadrant
7 0
3 years ago
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