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3 years ago

A polygon’s interior angles sum to 3600 degrees. How many sides does it have?

Mathematics

1 answer:

Sergeeva-Olga [200]3 years ago

3 0

Answer:

Step-by-step explanation:

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Please help me with this system of equations problem

LekaFEV [45]

Answer:

5x-2y=3

-3x+4y=1

5x-2y=-3x+4y+2

+2y

5x=-3x+6y+2

+3x

8x=6y+2

divide by 2

4x=3y+1

-3y+4x=1

wait so that means that -3x+4y=-3y+4x so that means that both x and y are equal so lets just say their the same

-3x+4x=1

x=1

y=1

Hope This Helps!!!

7 0

2 years ago

Find the sum of the arithmetic sequence. -1, 2, 5, 8, 11, 14, 17

muminat

56 is you answer you need.

8 0

3 years ago

Simplify the Polynomial and please show your work so I can do more on my own.

zheka24 [161]

Answer:

Step-by-step explanation:

7 0

2 years ago

Determine the domain of the function (fog)(x) where f(x)=3x-1/x-4 and g(x)=x+1/x

Katarina [22]

Answer: (-∞,-1) ∪ (0,+∞)

Step-by-step explanation: The representation fog(x) is a representation of composite function, meaning one depends on the other.

In this case, fog(x) means:

fog(x) = f(g(x))

fog(x) = $3(x+\frac{1}{x} )-\frac{1}{x+\frac{1}{x} } -4$

$fog(x)=3x+\frac{3}{x} -\frac{1}{\frac{x^{2}+x}{x} } -4$

$fog(x)=3x+\frac{3}{x} -\frac{x}{x^{2}+x} -4$

$fog(x)=\frac{3x^{2}(x^{2}+x)+3(x^{2}+x)-x-4x(x^{2}+x)}{x(x^{2}+x)}$

$fog(x)=\frac{3x^{4}+3x^{3}+3x^{2}+3x-x-4x^{3}+4x^{2}}{x(x^{2}+x)}$

$fog(x)=\frac{3x^{4}-x^{3}-x^{2}+2x}{x(x^{2}+x)}$

This is the function fog(x).

The domain of a function is all the values the independent variable can assume.

For fog(x), denominator can be zero, so:

$x(x^{2}+x) \neq 0$

If x = 0, the function doesn't exist.

$x^{2}+x \neq0$

$x(x+1) \neq0$

$x+1\neq0$

$x\neq-1$

Therefore, the domain of this function is: -∞ < -1 or x > 0

5 0

3 years ago

Please help!!!!!! y=[?]°

coldgirl [10]

Answer:

Since there are already 2 angles shown, which are 48 and 90 (indicated by the square in the bigger triangle, we can set up an equation.

48 + 90 + y = 180

138 + y = 180

-138 + 138 + y = 180 - 138

y = 42°

7 0

3 years ago