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dangina [55]
4 years ago
15

Urgente! Urgent! 2-(1/8)+(-7/4)=?

Mathematics
1 answer:
kiruha [24]4 years ago
8 0
The answer is 1/8 decimal form 0.125
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Which number is equal to 10 to the power of neg 3
Shkiper50 [21]

Answer:

0.001

Step-by-step explanation:

4 0
3 years ago
Find an equation for the line of best fit for the table below.
Luden [163]

Answer:

first or last depending how you are rounding the decimal

=> the best fit is the first one

Step-by-step explanation:

y = 2.55x - 2.15 when x = 5 => y = 10.6 approximately 11

y = 3.21x - 1.75 when x = 5 => y = 14.3 cannot equal or approximately  11

y = -2.15x + 2.55 when x = 5 => y = -8.2 cannot equal or approximately  11

y = 1.75x + 3.15 when x = 5 => y = 11.9 approximately 11

8 0
3 years ago
Determine the domain and range of (g ○ f)(x) if f of x is equal to 4 over the quantity x squared minus 4 end quantity and g(x) =
lara [203]

The domain and range of a function are the possible <em>x and y values </em>of the function.

<em>The domain and the range of the function is: (a) </em>\mathbf{D:\{x \in R|x \ne -2,2\}}<em> and </em>\mathbf{R:\{(-\infty,1) \cup (2,\infty)\}}<em />

The functions are given as:

\mathbf{f(x) = \frac{4}{x^2 - 4}}

\mathbf{g(x) = x + 2}

(g o f)(x) is calculated as:

\mathbf{(g\ o\ f)(x) = g(f(x))}

So, we have:

\mathbf{(g\ o\ f)(x) = \frac{4}{x^2 - 4} + 2}

Take LCM

\mathbf{(g\ o\ f)(x) = \frac{4 + 2x^2 - 8}{x^2 - 4} }

\mathbf{(g\ o\ f)(x) = \frac{2x^2 - 4}{x^2 - 4} }

Represent the denominator as follows, to calculate the domain

\mathbf{x^2 - 4 \ne 0 }

Add 4 to both sides

\mathbf{x^2 \ne 4 }

Take square roots of bot sides

\mathbf{x \ne \±2 }

Hence, the domain of the function is:

\mathbf{D:\{x \in R|x \ne -2,2\}}

On the graph of \mathbf{(g\ o\ f)(x) = \frac{2x^2 - 4}{x^2 - 4} } (see attachment), the function does not have a value from <em>y = 1 to 2.</em>

Hence, the range is:

\mathbf{R:\{(-\infty,1) \cup (2,\infty)\}}

Read more about domain and range at:

brainly.com/question/1632425

5 0
2 years ago
Read 2 more answers
How many solutions does 7z+7=7z have
madreJ [45]

Answer:

no solution

Step-by-step explanation:

7 0
3 years ago
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Which equation is equivalent to the equation 6x + 9 = 12?
SOVA2 [1]

Step-by-step explanation:

6x + 9 = 12

6x = 12 - 9

6x = 3

x = 3/6 = 1/2

3 0
3 years ago
Read 2 more answers
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