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Sedbober [7]
3 years ago
15

What the product of x and 5 is less than 75

Mathematics
1 answer:
Virty [35]3 years ago
6 0

Answer:

x * 5 < 75


Hope this helps! Please mark brainliest! Have a great day!



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Select the equation that is equivalent to the equation y-3 = 2(x + 5).
kakasveta [241]

Answer:y=2x+13

Step-by-step explanation:You would distribute the 2 to get y-3=2x+10. Then add the three over to get your final answer.

4 0
3 years ago
7th grade math PLEASE HELP FOR BRAINLIEST ASAP ASAP ASAP PLEASEEEEEEEEEEEEE I NEEED THE HELPPPP, :):):):):):):):):):):)
LUCKY_DIMON [66]

Answer:

area=3.14*2.3*2.3

=3.14*5.29

=16.6106

6 0
3 years ago
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The manager of a grocery store has taken a random sample of 100 customers. The average length of time it took these 100 customer
AlladinOne [14]

Answer:

4-2.326\frac{1}{\sqrt{100}}=3.767    

4+2.326\frac{1}{\sqrt{100}}=4.233    

So on this case the 98% confidence interval would be given by (3.767;4.233)

Step-by-step explanation:

Previous concepts

A confidence interval is "a range of values that’s likely to include a population value with a certain degree of confidence. It is often expressed a % whereby a population means lies between an upper and lower interval".

The margin of error is the range of values below and above the sample statistic in a confidence interval.

Normal distribution, is a "probability distribution that is symmetric about the mean, showing that data near the mean are more frequent in occurrence than data far from the mean".

\bar X=4 represent the sample mean

\mu population mean (variable of interest)

\sigma=1 represent the population standard deviation

n=100 represent the sample size  

Solution to the problem

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

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

Since the Confidence is 0.98 or 98%, the value of \alpha=0.02 and \alpha/2 =0.01, and we can use excel, a calculator or a table to find the critical value. The excel command would be: "=-NORM.INV(0.01,0,1)".And we see that z_{\alpha/2}=2.326

Now we have everything in order to replace into formula (1):

4-2.326\frac{1}{\sqrt{100}}=3.767    

4+2.326\frac{1}{\sqrt{100}}=4.233    

So on this case the 98% confidence interval would be given by (3.767;4.233)

   

4 0
3 years ago
Look at the figure below: an image of a right triangle is shown with an angle labeled y If sin y° = 7 divided by q and tan y° =
Andre45 [30]

Answer:

Cosy° = \frac{r}{q}

Step-by-step explanation:

From the picture attached,

By applying all trigonometric ratios in the given right triangle,

Siny° = \frac{7}{q} = \frac{\text{Opposite side}}{\text{Hypotenuse}}

tany° = \frac{7}{r} = \frac{\text{Opposite side}}{\text{Adjacent side}}

Therefore, Cosy° = \frac{\text{Adjacent side}}{\text{Hypotenuse}}

Cosy° = \frac{r}{q}

Therefore, Cosy° = \frac{r}{q} will be the answer.

5 0
3 years ago
Rewrite the expression using addition -17.9 - 4.2
Alexeev081 [22]

You can say -17.9+(-4.2)

5 0
3 years ago
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