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Otrada [13]
2 years ago
6

Three students wrote expressions on their dry-erase boards.

Mathematics
1 answer:
OlgaM077 [116]2 years ago
3 0

Answer:

Student 2 and Student 3

Step-by-step explanation:

Student 2

-(5r - 3s + 1)

= - 5r +3s - 1

Student 3

= - 5r +3s - 1

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Help me it’s due at 12 I’ve been doing this for 3 days now
Lemur [1.5K]

Answer:

tan(C) = √3/√2

Step-by-step explanation:

First, using Pythagorean Theorem, find AC.

=> AC = √(3√5)² - (3√3)²

=> AC = √45 - 27

=> AC = √18

=> AC = 3√2

tan C = 3√3/3√2

= √3/√2

7 0
2 years ago
(3x²+3x+5)+(7x²-9x=8)=10x²-12x=13
Brilliant_brown [7]

The value of x is equal to -5/6

To solve this question, we have to add two polynomials together. The polynomials are;

  • 3x^2+3x+5
  • 7x^2-9x=8
<h3>Addition of Polynomials</h3>

This involves adding of two or more different polynomials together. The polynomials adding together are or must be of the same degree. i.e x^2 must add to another coefficient of x^2 and x^3 adds to another coefficient of x^3 and so on.

In this given question, let's add the polynomials together.

(3x^2+3x+5) + (7x^2-9x = 8\)\\3x^2 + 7x^2 + 3x-9x+5-8 =10x^2-6x-3

Now, let's equate this with the last polynomial given

10x^2-6x-3=10x^2-12x-13\\10x^2-10x^2-6x+12x-3+13\\0+12x+10\\12x=-10

Let's solve for x

12x=-10\\x=-\frac{10}{12}\\x = -\frac{5}{6}

The value of x is equal to -5/6

Learn more on addition of polynomials here;

brainly.com/question/4142886

8 0
2 years ago
Help math pls its a drag and drop
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Answer:

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3 years ago
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What is the solution to the equation 14 ^ (x + 3) = 21?
Rina8888 [55]
The answer to your question is b
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