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3 years ago

Solve the inequality: x^2(x+2)(x-7) is greater than or equal to 0

Mathematics

1 answer:

const2013 [10]3 years ago

6 0

Answer:

greater

Step-by-step explanation:

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What is the slope of the line on the graph?

dolphi86 [110]

Answer:

The vertical change between two points is called the rise, and the horizontal change is called the run. The slope equals the rise divided by the run: Slope =riserun Slope = rise run . You can determine the slope of a line from its graph by looking at the rise and run.

Type of Slope: Visual Description

Undefined: vertical

Negative: downhill.

What Does The Slope Of A Line On A Graph Mean?

Slope describes the steepness of a line. The slope of any line remains constant along the line. The slope can also tell you information about the direction of the line on the coordinate plane. Slope can be calculated either by looking at the graph of a line or by using the coordinates of any two points on a line.

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7 0

3 years ago

باستعمال log4 2=0.5 فإن قيمة log4 32 هي

11Alexandr11 [23.1K]

Answer:

$\mathbf{\log_432}=2.5$

Step-by-step explanation:

$\log_42=0.5$

حن بحاجة إلى إيجاد $\log_432$

دع $\log_432=x$

$\log_42\times 2\times 2\times 2\times 2=x$

$\Rightarrow x=\log_42^5$

$\Rightarrow x=5\log_42$ $[\because \log_ab^x=x\log_ab]$

$\Rightarrow x=5\times0.5$

$\Rightarrow x=2.5$

$\mathbf{\therefore\log_432=2.5}$

7 0

3 years ago

Pleaseeeeeeee Help ASAPP!!

andrew11 [14]

F(-3)=-16
F(0)=-10
F(8)=6

6 0

3 years ago

A salesperson earns a commission of $459 for selling $2700 in merchandise find the commission rate. Write the answer as a percen

kogti [31]

459/2700=17/100 which translates to 17%.

4 0

3 years ago

A study of women’s weights found that a randomly selected sample of 234 women had a mean weight of 157.3 lb. Assuming that the p

Scilla [17]

Answer:

$157.3-1.96\frac{15.6}{\sqrt{234}}=155.301$

$157.3+1.96\frac{15.6}{\sqrt{234}}=159.299$

So on this case the 95% confidence interval would be given by (155.301;159.299)

And the best option would be:

B. (155.3, 159,3)

Step-by-step explanation:

Information given

$\bar X=157.3$ represent the sample mean

$\mu$ population mean (variable of interest)

$\sigma =15.6$ represent the population standard deviation

n=234 represent the sample size

Confidence interval

The confidence interval for the mean is given by the following formula:

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

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

And replacing we got:

$157.3-1.96\frac{15.6}{\sqrt{234}}=155.301$

$157.3+1.96\frac{15.6}{\sqrt{234}}=159.299$

So on this case the 95% confidence interval would be given by (155.301;159.299)

And the best option would be:

B. (155.3, 159,3)

5 0

4 years ago