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Tom [10]
3 years ago
9

9 is 18% of what number

Mathematics
2 answers:
Vika [28.1K]3 years ago
6 0
9 = 18% (x)
9 = .18x
x = 9/.18
x = 50
qaws [65]3 years ago
3 0
9=18n/100

18n=900

n=900/18

n=50
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The quadratic function g(x) = ax^2 + bx + c has the complex roots (-5+9i) and (-5-9i). (you may assume that a = -1) what is the
gavmur [86]

Answer:

  • b = -10, c = -106

Step-by-step explanation:

<h3>Given</h3>

<u>Quadratic function </u>

  • g(x) = ax^2 + bx + c

with the roots:

  • (-5+9i) and (-5-9i)
<h3>To find </h3>
  • b and c if a = -1
<h3>Solution</h3>

<u>As we know the sum of the roots is -b/a and the product of the roots is c/a. Substituting values and solving for b and c:</u>

  • (-5 + 9i) + (-5 - 9i) = -b/-1
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  • b = -10

And

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4 0
3 years ago
Tommy earns $8.00 an hour. How much will he earn for working 5.5 hours?
Artyom0805 [142]

Answer:

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Step-by-step explanation:

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Step-by-step explanation:

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I'm unsure how to solve this, if you can please respond asap. Thanks!
Alinara [238K]

Answer:

82.5°

Step-by-step explanation:

This is the case of a isosceles triangle , as you may know in a isosceles triangle , there are two sides of equal length as well as two equal angles.

You know that the sum of angles in a triangle is 180°, therefore it comes to this equation :

15° + 2x = 180°

2x = 165°

x = 82.5°

therefore 82.5° is the correct answer.

4 0
3 years ago
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