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jarptica [38.1K]
3 years ago
8

Combine the like terms to create an equivalent expression:

Mathematics
1 answer:
Sphinxa [80]3 years ago
6 0

Answer:

  7k

Step-by-step explanation:

  −k−(−8k) = -k +8k = 7k

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Which of the following discontinuity is found by reducing common factors in the numerator and denominator of a rational function
Snowcat [4.5K]

We can define discontinuity as a point in our function where we have a given indetermination. Here particularly we refer to the indetermination of dividing by zero.

The correct option is a: Vertical Asymptote

Here we work with functions like:

f(x) = \frac{g(x)}{k(x)}

Suppose that g(x) = (x + 1)*(x - 2)

                        k(x) = (x + 1)*(x + 17)

Then we have:

f(x) = \frac{(x + 1)*(x - 2)}{(x + 1)*(x + 17)}

Here we have the common factor (x + 1) that we can remove, doing that we get:

f(x) = \frac{(x - 2)}{(x + 17)}

This function can't be reduced any more, so now we can see the discontinuity. It happens when the denominator is equal to zero at x = -17.

Now, if any number is divided by a really smaller number, then the outcome of the quotient is really large (or really small, depending of the sign). From this, for dividing by zero we will have vertical asymptotes that tend to infinity (or negative infinity).

Then the discontinuity that is found by reducing common factors in the numerator and denominator of a rational function is a vertical asymptote, thus the correct option is a.

If you want to learn more, you can read:

brainly.com/question/17317969

3 0
3 years ago
Anusha is walking on a hiking trail at the rate of 3/4 miles in 1/4 hour. At this rate how far will Anusha walk in an hour?
Len [333]
There are 4 * 1/4 hr in one hour so we multiply yhe 3/4  by 4

Answer is 3/4 * 4 = 3 miles 
5 0
3 years ago
Read 2 more answers
The area of a circle is 78.5 cm2. What is the diameter of the circle?
Svetllana [295]
Your answer is 157, i'm pretty sure


6 0
3 years ago
Read 2 more answers
X-3y=-6 graph the intercept
Aleks04 [339]
X - 3y = -6
3y = -x - 6
y = 1/3x + 2 

y-intercept is 2
4 0
3 years ago
A corporation must appoint a president, chief executive officer, chief operating officer and chief financial officer. It also ap
erik [133]

Answer:

Part a: The number of ways in which the candidates can be appointed on the executive posts are 11880.

Part b: The number of ways in which the candidates can be appointed as members of the planning committee are 495.

Step-by-step explanation:

As the complete question is not given a similar question is found online and is attached herewith.

Part a: Number of ways in which 12 candidates can be appointed for President, Chief Executive Officer, Chief Operating Officer and Chief Finance Officer.

Number of Candidates=12

Number of Posts=4

As the order is important the number of ways are identified using Permutations given as

Number\,\ of\, ways=^{12}P_4\\Number\,\ of\, ways=\frac{12!}{(12-4)!}\\Number\,\ of\, ways=\frac{12!}{8!}\\Number\,\ of\, ways=11880

So the number of ways in which the candidates can be appointed on the executive posts are 11880.

Part b: Number of ways in which 12 candidates can be appointed as members of the planning committee.

Number of Candidates=12

Number of Posts=4

As the order is not important the number of ways are identified using Combinations given as

Number\,\ of\, ways=^{12}C_4\\Number\,\ of\, ways=\frac{12!}{(12-4)!4!}\\Number\,\ of\, ways=\frac{12!}{8!4!}\\Number\,\ of\, ways=495

So the number of ways in which the candidates can be appointed as members of the planning committee are 495.

8 0
3 years ago
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