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julsineya [31]
4 years ago
5

Which is the correct interpretation of the x-intercepts of

Mathematics
2 answers:
stira [4]4 years ago
8 0

Answer:

The <em>x</em>-intercept would be at the point where there are 0 downloads in <em>x</em> days.

Step-by-step explanation:

The <em>x</em>-intercept of a function is the point where the graph of the function crosses the <em>x-</em>axis and the <em>y</em>-coordinate is 0.

That is, the point (<em>x</em>, 0) is the <em>x</em>-intercept of a function.

In this case the data provided is for the number of free downloads using the promo code (f (x), in tens of  thousands) and the time since  posting (<em>x</em> days).

So, in this case the <em>x</em>-intercept would be at the point where there are 0 downloads in <em>x</em> days.

dusya [7]4 years ago
3 0

Answer:

The answer is D

Step-by-step explanation:

Source:Dude trust me

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Find the approximate distance between line –2x + 2y = 8 and the point P (4, −2).
nikklg [1K]
Hello,

-2x+2y=8==>y=x+4(1)
The perdicular passing trought (4,-2) is
y+2=-1(x-4)==>y=-x+2(2)
The intersection is
(1)-(2)==>2x+2=0==>x=-1 and y=-1+4=3
Q=(-1,3)
P=(4,-2)
Distance PQ= √(( -1-4)²+(3+2)²)=√50=7,0710678...


7 0
4 years ago
A school has two kindergarten classes. There are 21 children in Ms. Toodle's kindergarten class. Of these, 17 are "pre-readers"
Maru [420]

Answer:

Answer : D

Step-by-step explanation:

A school has two kindergarten classes. There are 21 children in Ms. Toodle's kindergarten class. Of these, 17 are "pre-readers" children on the verge of reading. There are 19 children in Mr. Grimace's kindergarten class. Of these, 13 are pre-readers. Using the plus four confidence interval method, a 90% confidence interval for the difference in proportions of children in these classes that are pre-readers is â0.104 to 0.336.  

Which of the following statements is correct?

A) This confidence interval is not reliable because the samples are so small.  

B)This confidence interval is of no use because it contains 0, the value of no difference between classes.  

C)This confidence interval is reasonable because the sample sizes are both at least 5.  

D) This confidence interval is not reliable because these samples cannot be viewed as simple random samples taken from a larger population.

The Answer is D - This confidence interval is not reliable because these samples cannot be viewed as simple random samples taken from a larger population.

In this setup, all the students are already involved in the data. This is not a sample from a larger population, but probably, the population itself.

4 0
3 years ago
PLEASE HELP<br> what is the value of x in the diagram?<br> a. 15<br> b. 5 2/5<br> c. 19<br> d. 3/5
vichka [17]
I'm pretty sure the answer is A) 15 I could be wrong though
5 0
3 years ago
Read 2 more answers
The graph of a function f(x) passes through the following points:
Alex

The function is f(x) = -2x² + 2 if the function f(x) passes through the following points:(0,2), (1, 0), (-1,0)

<h3>What is a function?</h3>

It is defined as a special type of relationship, and they have a predefined domain and range according to the function every value in the domain is related to exactly one value in the range.

The question is incomplete.

The complete question is in the picture, please refer to the attached picture.

We have:

The graph of a function f(x) passes through the following points: (0,2), (1, 0), (-1,0)

Let

f(x) = ax² + bx + c

Plug x = 0, and y = 2

c = 2 ...(1)

Plug x = 1 and y = 0

a + b + c = 0 ..(2)

Plug x = -1 and y = 0

a - b + c = 0  ...(3)

After solving (1), (2), and (3)

a = -2

b = 0

c = 2

f(x) = -2x² + 2

Thus, the function is f(x) = -2x² + 2 if the function f(x) passes through the following points:(0,2), (1, 0), (-1,0)

Learn more about the function here:

brainly.com/question/5245372

#SPJ1

5 0
2 years ago
What is the area of the shaded region?
Zielflug [23.3K]

Answer:

Where??

Where is the diagram???

7 0
3 years ago
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