Is 2 greater Than or less than or equivalent to 30 in

1 answer:

6 0

The positive number 2 is 28 numbers less than 30 in, and because you pointed out 30 is in inches I’m guessing 2 is in inches also.

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guapka [62]

Step-by-step explanation:

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3 0

3 years ago

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The standard deviation of pulse rates of adult males is less than 12 bpm. For a random sample of 135 adult males, the pulse rat

igomit [66]

Answer:

Step-by-step explanation:

Hello!

The population variance is symbolized σ² and the standard deviation σ (remember that for estimations and statistics test, the parameter of study is always the variance)

The sentence "The standard deviation of pulse rates of adult males is less than 12 bpm." is symbolized σ <12

The sample variance is symbolized S² and the standard deviation is S.

The sample standard deviation is S= 11.5.

I hope it helps!

7 0

3 years ago

Xcel energy uses the equation c (x) =7.1+23logx to determine the cost of electricity for x hours. A. What would the function c^-

Sergeeva-Olga [200]

Answer:

Step-by-step explanation:

Note that the cost function is $c(x) = 7.1+23\ln(x)$ , which gives us the cost of electricity for x hours of consumption

a). The function $c^{-1}(x)[tex] which is the inverse function, tells us given a cost, the amount of hours we can consume electricty. b) Consider the equation [tex]y=7.1+23\ln(x)$

To find out the inverse function, we interchange the labels of x and y and solve for y, that is

$x = 7.1+23\ln(y)$

when solved for y we have

$e^{\frac{x-7.1}{23}}= y$

So the inverse function is given by $c^{-1}(x) = e^{\frac{x-7.1}{23}}$ .

c) We will use the inverse function to find the amount of hours the customer can use eelectricity. It is simple obtained by evaluating the inverse function at the desired cost (i.e $c^{-1}(15)$ )