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4 years ago

What values is the x-intercept in between? (This was

Mathematics

1 answer:

mars1129 [50]4 years ago

4 0

The 25 is 24 pergdentage mote the 0 therefore you must subtract from each to get a positive answer

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PLEASE HELP!!<br><br> (2y+8)(4y-7)

vodomira [7]

Answer:

6y×1

Step-by-step explanation:

Combine like terms:

2y+4y=6y

8-7=1

(6y)(1)

6 0

2 years ago

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Dilation – stretching or compressing the graph of a function

nekit [7.7K]

Whats the question here?

8 0

4 years ago

(23.01) In a randomized comparative experiment on the effect of dietary calcium on blood pressure, researchers divided 58 health

Paul [167]

Answer:

$113.7-2.154\frac{9.1}{\sqrt{29}}=110.06$

$113.7+2.154\frac{9.1}{\sqrt{29}}=117.34$

And the 96% confidence is given by (110.06; 117.34)

Step-by-step explanation:

Information given

$\bar X=113.7$ represent the sample mean

$\mu$ population mean (variable of interest)

s=9.1 represent the sample standard deviation

n=29 represent the sample size

Confidence interval

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

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

The degrees of freedom are given by:

$df=n-1=29-1=28$

The Confidence is 0.96 or 96%, the significance is $\alpha=0.04$ and $\alpha/2 =0.02$ , and the critical value would be $t_{\alpha/2}=2.154$

Replacing the info we got:

$113.7-2.154\frac{9.1}{\sqrt{29}}=110.06$

$113.7+2.154\frac{9.1}{\sqrt{29}}=117.34$

And the 96% confidence is given by (110.06; 117.34)

5 0

4 years ago

Is 1.33 repeating a whole number but not a natural number?

solong [7]

Answer:

1.33 is repeating

Step-by-step explanation:

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4 years ago

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Please helppp!!! Is the set of positive irrational numbers closed for the operation of division? If not, give a counter-example.

lorasvet [3.4K]

Irrational numbers are "not closed" under addition, subtraction, multiplication or division. The numbers that are in the set of Complex Numbers, but are not in the set of Real Numbers .the imaginary number, i, which is the square root of negative one.

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3 years ago

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