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kondaur [170]
4 years ago
13

I need some help on my math test!!, I get to retake it but I need help with some of it:

Mathematics
1 answer:
Greeley [361]4 years ago
7 0

Answer:

B

Step-by-step explanation:

The equation of a line in slope- intercept form is

y = mx + c ( m is the slope and c the y- intercept )

Here m = \frac{1}{2}, thus

y = \frac{1}{2} x + c ← is the partial equation

To find c substitute (- 4, - 9) into the partial equation

- 9 = - 2 + c ⇒ c = - 9 + 2 = - 7

y = \frac{1}{2} x - 7 ← equation of line

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Given the functions f and g, explain why you cannot find f⋅g.
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We can't write the product because there is no common input in the tables of g(x) and f(x).

<h3>Why you cannot find the product between the two functions?</h3>

If two functions f(x) and g(x) are known, then the product between the functions is straightforward.

g(x)*f(x)

Now, if we only have some coordinate pairs belonging to the function, we only can write the product if we have two coordinate pairs with the same input.

For example, if we know that (a, b) belongs to f(x) and (a, c) belongs to g(x), then we can get the product evaluated in a as:

(g*f)(a) = f(a)*g(a) = b*c

Particularly, in this case, we can see that there is no common input in the two tables, then we can't write the product of the two functions.

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3 years ago
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4 years ago
Which is -3.2 written in the form a/b
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Trust me it is -16/5.

Convert a mixed number by placing the numbers to the right of the decimal over 10. Reduce the fraction. Then convert the mixed number into an improper fraction by multiplying the denominator by the whole number and adding the numerator to get the new numerator. Place this new numerator over the original denominator.

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Answer:

\text{2, 1, 3, 1, 1}

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