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Alenkinab [10]
3 years ago
14

Solve for a.5a−5−15=3a+6+4

Mathematics
1 answer:
taurus [48]3 years ago
5 0

Answer:

<h3>a = 15</h3>

Step-by-step explanation:

5a - 5 - 15 = 3a + 6 + 4     <em>combine like terms</em>

5a + (-5 - 15) = 3a + (6 + 4)

5a - 20 = 3a + 10       <em>add 20 to both sides</em>

5a = 3a + 30      <em>subtract 3a from both sides</em>

2a = 30       <em>divide both sides by 2</em>

a = 15

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Answer:

B

Step-by-step explanation:

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3 years ago
Help Me Please (30 Points) + Brainliset Answer
sergeinik [125]
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2 years ago
Given the lengths of two sides of a triangle, find the range for the length of the third side (between what two numbers should t
frozen [14]

Answer:

The length of the third side of given triangle lies between 6.5 and 19.9.

Step-by-step explanation:

The law of cosine is as follows

 c^{2} =a^{2}+b^{2}+2abcos\alpha---------------1

⇒ a and b are the given sides of the triangle and c is the third side, and \alpha is the angle between a and b .

In equation 1 , the maximum and minimum values of cos\alpha are 1 and -1.

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3 0
3 years ago
If a radius of a circle is 12 feet, what is the area and perimeter of the circle?
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answer 1= the area of this circle is 452.39 ft².

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<span>answer 2= the perimeter of this cirlce is 75.4 ft.</span>

4 0
2 years ago
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Answer:

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Step-by-step explanation:

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3 0
3 years ago
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