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3 years ago

Graph represents the function f (x) = StartFraction 5 minus 5 x squared Over x squared EndFraction?

Mathematics

2 answers:

In-s [12.5K]3 years ago

8 0

Answer:

Step-by-step explanation:

edge2020

True [87]3 years ago

3 0

Answer:

The following are the attachment to this question.

Step-by-step explanation:

Given:

$\bold{ f (x) = (\frac{5- 5x^2}{x^2})}\\$

Simplify:

$\bold{ f (x) = (\frac{-5 (x^2-1)}{x^2})}\\\\\bold{ f (x) = (\frac{-5(x+1)(x-1)}{x^2})}\\$

The graph representation can be described as follows:

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In analyzing the city and highway fuel efficiencies of many cars and trucks, the mean difference in fuel efficiencies for the 60

Olegator [25]

Answer:

$7.38-1.96\frac{2.51}{\sqrt{601}}=7.18$

$7.38+1.96\frac{2.51}{\sqrt{601}}=7.58$

For this case the confidence interval is given by :

$7.18 \leq \mu \leq 7.58$

Step-by-step explanation:

Data provided

$\bar X=7.38$ represent the sample mean for the fuel efficiencies

$\mu$ population mean

s=2.51 represent the sample standard deviation

n=601 represent the sample size

Confidence interval

The formula for the confidence interval of the true mean is given by:

$\bar X \pm t_{\alpha/2}\frac{s}{\sqrt{n}}$ (1)

The degrees of freedom for this case is given by:

$df=n-1=601-1=600$

The Confidence level for this case is 0.95 or 95%, and the significance level $\alpha=0.05$ and $\alpha/2 =0.025$ and the critical value is given by $t_{\alpha/2}=1.96$

Replcing into the formula for the confidence interval is given by:

$7.38-1.96\frac{2.51}{\sqrt{601}}=7.18$

$7.38+1.96\frac{2.51}{\sqrt{601}}=7.58$

For this case the confidence interval is given by :

$7.18 \leq \mu \leq 7.58$

8 0

3 years ago

Factor strings for 36

Marina CMI [18]

Factor strings for 36:

6 x 6
2 x 18
3 x 12
4 x 9
2 x 2 x 3 x 3
2 x 2 x 9
4 x 3 x 3
6 x 2 x 3

Hope that helped :D

4 0

3 years ago

Read 2 more answers

There are 24 students in Ms. Woodall's. Half of the students are boys and 1/3 of the boys have brown hair. What's the number of

Natali [406]

4 boys have brown hair because 1/2 of 24 is 12 and 1/3 of 12 is 4

5 0

3 years ago

Read 2 more answers

Which figure shows a reflection of pre-image QRS over the line t?

il63 [147K]

Answer:

Which point would map onto itself after a reflection across the line y = -x? ... What is the pre-image of vertex A' if the image shown on the graph was created by a reflection across the ... A triangle has vertices at R(1, 1), S(-2, -4), and T(-3, -3). ... Which shows the image of quadrilateral ABCD after the transformation R0, 90°? a.

Step-by-step explanation:

7 0

2 years ago

Storage tubs were stacked against a wall.The tubs are unit cubes.The tubs are stacked three tubs wide, and two tubs tall

Blizzard [7]

Answer:

6 cubic units

Step-by-step explanation:

step 1

Find the total number of storage tubs

Multiply three tubs wide by two tubs tall

$(3)(2)=6\ storage tubs$

step 2

Find the total volume of storage

we know that

One storage tub is a unit cube

That means ----> The volume of one storage tub is one cubic unit

Multiply by 6 storage tubs

$(1)(6)=6\ units^3$

5 0

3 years ago