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Mathematics

1 answer:

Sav [38]2 years ago

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Second picture 1st diagram it is a parallelogram because allowing sides are parallel to each other

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Identify the graph of the equation. What is the angle of rotation for the equation?<br><br>xy=-2.5

Maurinko [17]

Answer:

It is B. hyperbola, 45 degrees.

SteIt is p-by-step explanation:

If we rotate the standard form x^2 - y^2 = 1 through 45 degrees we get xy = 1/2.

xy = -2.5 comes from x^2 - y^2 = -5 being rotated 45 degrees.

3 0

3 years ago

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Suppose an automotive repair company wants to determine the current percentage of customers who keep up with regular vehicle mai

Nina [5.8K]

Answer: 1692

Step-by-step explanation:

Formula to find the sample size :

$n=p(1-p)(\dfrac{z_{\alpha/2}}{E})^2$

Given : Confidence level : $(1-\alpha)=0.90$

⇒ significance level = $\alpha= 0.10$

z-value for 90% confidence interval (using z-table)= $z_{\alpha/2}=1.645$

Prior estimate of the population proportion (p) of customers who keep up with regular vehicle maintenance is unknown.

Let we take p= 0.5

Margin of error : E= 2%=0.02

Now, the required sample size will be :

$n=0.5(1-0.5)(\dfrac{1.645}{0.02})^2$

Simplify , we get

$n=(0.25)(6765.0625)=1691.265625\approx1692$

Hence, the required sample size = 1692

8 0

3 years ago

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How do you find the square root of 2465

kati45 [8]

Answer:

y = V x2 +2 over 5

Step-by-step explanation:

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3 years ago

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faust18 [17]

58 degrees. Just round up from multiplying .16 to 360

4 0

3 years ago

Function g can be thought of as a translated (shifted) version of f(x)=|x|.

klasskru [66]

Answer:

Step-by-step explanation:

g(x) = |x+4| +6 ( to go 4 to the left and 6 up)

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2 years ago