All categories

3 years ago

FOLLOW DIRECTIONS PLEASE! WILL MARK BRAINLIEST! MORE QUESTIONS TO COME!

Mathematics

1 answer:

Rom4ik [11]3 years ago

7 0

A) part of it is decreasing, part of it is increasing.

Going left-to-right, the downhill/negative slope is the decreasing portion (x<-1) and the uphill/positive slope is the increasing portion (x>-1).

B) The x-intercepts are the points where the graph intersects the x-axis: (2,0) and (-4,0).

C: The y-intercept is the point where the graph intersects the y-axis: (0,-2).

D: There is no absolute maximum. The graph keeps going up forever.

E: The absolute minimum point is at that bottom, at (-1, -3). The absolute minimum value is -3, since that's the lowest y-value used.

You might be interested in

What is the slope of the line passing though the points (2,1) and (1,-4)

gayaneshka [121]

M=y2-y1/x2-x1
m=-4-1/1-2
m=-5/-1
m=5
B

3 0

4 years ago

Bethany is making a rectangular fenced-in area for her rabbit in her yard. The area measures 4 3 4 feet wide by 2 yards long. Wh

djyliett [7]

Answer:

The answer is D

Hope this helps :D

3 0

3 years ago

Given the function f(x)= 2x-3 find f(-1) A. f(-1)= -2 B. f(-1)= -5 C. f(-1)= -1

Aliun [14]

B. -5
F(-1)=2x-3
=2(-1)-3
=-2-3
=-5

7 0

3 years ago

What is the area of a rectangle that is 4 inches by 2 inches?

ohaa [14]

Answer:

8 square inches

Step-by-step explanation:

The formula for are is A=wl if we plug our numbers in we have A=4x2=8 In other terms we now know A=8

6 0

3 years ago

Suppose a researcher is interested in determining if there is a relationship between low birth weight and pediatric pneumonia. I

MissTica

Answer:

He will need 4 newborns in the sample to be 95% confident.

Step-by-step explanation:

We have that to find our $\alpha$ level, that is the subtraction of 1 by the confidence interval divided by 2. So:

$\alpha = \frac{1-0.9}{2} = 0.05$

Now, we have to find z in the Ztable as such z has a pvalue of $1-\alpha$ .

So it is z with a pvalue of $1-0.05 = 0.95$ , so $z = 1.645$

Now, find the margin of error M as such

$M = z*\sqrt{\sigma}{\sqrt{n}}$

In which $\sigma$ is the standard deviation of the population and n is the length of the sample.

So:

$646 = 1.645*\frac{746}{\sqrt{n}}$

$646\sqrt{n} = 1227.17$

$\sqrt{n} = 1.90$

$\sqrt{n}^{2} = (1.90)^{2}$

$n = 3.61$

He will need 4 newborns in the sample to be 95% confident.

7 0

4 years ago