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Semmy [17]
2 years ago
7

I would appreciate it if someone could help answer this problem:)

Mathematics
1 answer:
DedPeter [7]2 years ago
5 0

Answer:

x=85^{\circ}

Step-by-step explanation:

The sum of the interior angles of any polygon with five sides is equal to (5-2)\cdot 180=3\cdot 180=540^{\circ}. Therefore, we can set up the following equation and solve for x:

115+95+115+130+x=540,\\455+x=540,\\x=\boxed{85^{\circ}}

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Given the function f(x)=x2+2x, the value of f(4) is
Citrus2011 [14]

Answer:

24

Step-by-step explanation:

f(x)=x^2+2x

Let x= 4

f(4)=4^2+2*4

     = 16 + 8

    = 24

5 0
3 years ago
For f(x)=3x+1 and g(x)=x²-6, find (f-g)(x)
Lorico [155]

The value of (f - g)(x) is -x² + 3x + 7.

<h3>What is Function?</h3>

The functions are the special types of relations. A function in math is visualized as a rule, which gives a unique output for every input x.

Here, the given functions are;

   f(x) = 3x + 1

   g(x) = x² - 6

Now,

 (f - g)(x) = f(x) - g(x)

              = (3x + 1) - (x² - 6)

              = 3x + 1 - x² + 6

(f - g)(x)  = -x² + 3x + 7

Thus, the value of (f - g)(x) is -x² + 3x + 7.

Learn more about Function from:

brainly.com/question/12431044

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8 0
2 years ago
Read 2 more answers
A rectangle has a perimeter of 30 feet and an area of 50 square feet. What are the dimensions of the rectangle.
KiRa [710]

I believe the shorter sides are 5 feet and the longer ones are 10. This is because when you add up the two shorter sides as 10, and the other two as 20, then add them up to 30. That's the perimeter. For the area, you would do 10•5 to get 50 for the area

3 0
3 years ago
Read 2 more answers
Solve for x. Show the equation you used and your work.
levacccp [35]
The value of X is 27.

To solve this problem, you have to write a proportion with the given information. This can be done because the sides on the left and right are proportional with the values on the bottom.

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3 years ago
7r - 8r<br>how to combine like terms <br>​
Sedaia [141]
-r

Step by step:
7r+(-8)
7r+(-8r)
-r
6 0
3 years ago
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