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3 years ago

Over what interval(s) is the function increasing?

Mathematics

2 answers:

pickupchik [31]3 years ago

8 0

The function is never increasing, always approaching y=5 but never reaching it. Therefore D is the correct answer

mash [69]3 years ago

8 0

Answer:

A function f is said to be decreasing if f(a) < f(b) when a > b. You want to look and see where the graph falls from left to right. The correct intervals are -∞ < x < ∞. so the answer is A

Step-by-step explanation:

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How do I solve this? <br> Please help

quester [9]

Filling in the boxes:
Top row outside box: 3c and 8
Second row outside box: - or -1
Inside box: -3c and -8

Expanded: -3c - 8

5 0

3 years ago

Use: Ck = k! (n-k)!

Arlecino [84]

Answer:

3 ways.

Step-by-step explanation:

Combinations formula:

$C_{n,x}$ is the number of different combinations of x objects from a set of n elements, given by the following formula.

$C_{n,x} = \frac{n!}{x!(n-x)!}$

In this question:

2 meats from a set of 3(steak, fish or chicken). So

$C_{3,2} = \frac{3!}{2!1!} = 3$

3 ways.

5 0

3 years ago

According to the graph, what is the value of the constant in the equation below?

dedylja [7]

Answer:0.4

Step-by-step explanation:

I believe it is B

3 0

3 years ago

Write the following sum using summation notation -2/5+3/6-4/7........11/14

horrorfan [7]

Answer:

$\sum_{n=1}^{10}(-1)^n\left ( \frac{n+1}{n+4} \right )$

Step-by-step explanation:

Given: $\frac{-2}{5}+\frac{3}{6}-\frac{4}{7}+...+\frac{11}{14}$

To write: the given expression using summation notation

Solution:

Summation notation helps to write a long sum as a single expression.

In the summation notation, the variable $\sum$ is called the index of summation.

Let $x_1,x_2,x_3,...,x_n$ denote a set of n numbers.

Then in summation notation,

$x_1+x_2+x_3+...+x_n=\sum_{i=1}^{n}x_i$

$\frac{-2}{5}=(-1)^1\left ( \frac{1+1}{1+4} \right )\\\frac{3}{6}=(-1)^2\left ( \frac{2+1}{2+4} \right )\\\frac{-4}{7}=(-1)^3\left ( \frac{3+1}{3+4} \right )\\.\\.\\.\\\frac{11}{14}=(-1)^10\left ( \frac{10+1}{10+4} \right )\\\therefore \frac{-2}{5}+\frac{3}{6}-\frac{4}{7}+...+\frac{11}{14}=\sum_{n=1}^{10}(-1)^n\left ( \frac{n+1}{n+4} \right )$

3 0

3 years ago

A table titled Text messages sent has 25 entries.

Studentka2010 [4]

This is uselful! Thanks: ))

5 0

3 years ago