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LekaFEV [45]
3 years ago
10

Tell whether the angles are complementary or supplementary. Then find the value of x.

Mathematics
2 answers:
gladu [14]3 years ago
8 0

Answer:

  • 7) x = 5
  • 8) x = 20

Step-by-step explanation:

Complementary angles form a right angle and supplementary angles form a straight angle.

<h3>#7</h3>

<u>Complementary:</u>

  • 65 + 5x = 90
  • 5x = 25
  • x = 5
<h3>#8</h3>

<u>Supplementary:</u>

  • 2x + 6x + 20 = 180
  • 8x = 160
  • x = 20
Tomtit [17]3 years ago
6 0

Step-by-step explanation:

1)

Since we know that sum of two complementary angles are 90⁰

=> 65 + 5x = 90

=> 5x = 90 - 65

=> 5x = 35

=> x = 35/5

=> x = 7⁰

2)

Since we know that sum of two supplementary angle are 180

=> 2x + 6x + 20 = 180

=> 8x = 180 - 20

=> 8x = 160

=> x = 160/8

=> x = 20

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4. Which of the following can be used
JulsSmile [24]

The option that can be used to support the idea that the set of polynomials is closed under multiplication is; Option C: (10x^(0.5) - 8)(5x^(0.5) + 4)

<h3>What is the Closure property under multiplication?</h3>

When multiplying polynomials, the variables' exponents are added, according to the rules of exponents. It is pertinent to note that the exponents in polynomials are whole numbers. The whole numbers are closed under addition, which guarantees that the new exponents will be whole numbers. Thus, we can also say that the polynomials are closed under multiplication.

Now, looking at the options, we can say that option C is the only polynomial that is closed under multiplication because its' variables and exponents will not change;

(10x^(0.5) - 8)(5x^(0.5) + 4)

The output will retain the same thing.

Read more about closure property at; brainly.com/question/19340450

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7 0
2 years ago
The histogram shows informstion about how 550 peopel travel to work​
irina [24]

Answer:

1) 100 ) 15

Step-by-step explanation:

1) 30 to 50 is 20 miles so 5 * 20 is 100

2)20 to 50 is 30 miles so its 150 and 15 to 20 is 5 so 11 *5 is 55

55+150 equals 250 so the answer is 15 miles.

4 0
3 years ago
How do i solve 2(x+4)=5x-2
IceJOKER [234]
=2(5x2+20x-1)
The 2 by the x has to be on top of the x
5 0
3 years ago
Write an expression to represent:<br> 6 times the difference of 5 and 2.​
Keith_Richards [23]

Answer:

See below

Step-by-step explanation:

The difference of 5 and 2    

    5-2    <=====   now multply it by 6

6 x (5-2)

4 0
2 years ago
Read 2 more answers
Apply the distributive property to factor out the greatest common factor of 12+20
Lunna [17]

4(3+5) --> this means that 12/4=3 and 20/4=5 and 4 is the GCF

3 0
3 years ago
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