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3 years ago

Over what interval is the growth rate of the function decreasing?

Mathematics

2 answers:

Mashutka [201]3 years ago

7 0

From -infinity to 0.04 (ln3/9)

PIT_PIT [208]3 years ago

4 0

Answer: the answer is:

(ln9/3, infinity)

I just took the quiz

Step-by-step explanation:

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Ca someone solve 8 = b - 1 + 8b STEP BY STEP PLEASE.

larisa [96]

Answer:

b = 1

Step-by-step explanation:

8 = b - 1 + 8b

combine like terms

8 = 9b - 1

add 1 to both sides of the equation

8 + 1 = 9b - 1 + 1

8 + 1 = 9b

9 = 9b

divide both sides of the equation by 9

9/9 = 9b/9

1 = b

4 0

2 years ago

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7. The figure shows a right rectangular prism whose base is a square...

GuDViN [60]

Answer:

Step-by-step explanation:

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2 years ago

How many times can 4 go into 724

Cerrena [4.2K]

It can go in 181 times

6 0

2 years ago

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4x+2(3x-9)=42 what is x equal

katrin2010 [14]

4x+2(3x-9)=42
first we want to distribute the 2 using the distributive property
4x+6x-18=42
Then we simplify
10x-18=42
we add 18 to both sides
10x=60
divide both side by 10
x=6

8 0

2 years ago

A teacher was interested in knowing the amount of physical activity that his students were engaged in daily. He randomly sampled

klasskru [66]

Answer:

The standard error of the mean is 4.5.

Step-by-step explanation:

As we don't know the standard deviation of the population, we can estimate the standard error of the mean from the standard deviation of the sample as:

$\sigma_{\bar{x}}\approx\frac{s}{\sqrt{n}}$

The sample is [30mins, 40 mins, 60 mins, 80 mins, 20 mins, 85 mins]. The size of the sample is n=6.

The mean of the sample is:

$\bar{x}=\frac{1}n} \sum x_i =\frac{30+40+60+80+20+85}{6}=52.5$

The standard deviation of the sample is calculated as:

$s=\sqrt{\frac{1}{n-1}\sum (x_i-\bar x)^2} \\\\ s=\sqrt{\frac{1}{5}\cdot ((30-52.5)^2+(40-52.5)^2+(60-52.5)^2+(80-52.5)^2+(20-52.5)^2+(85-52.5)^2}\\\\s=\sqrt{\frac{1}{5} *3587.5}=\sqrt{717.5}=26.8$

Then, we can calculate the standard error of the mean as:

$\sigma_{\bar{x}}\approx\frac{s}{\sqrt{n}}=\frac{26.8}{6}= 4.5$

6 0

2 years ago