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Alisiya [41]
2 years ago
5

A number, x, rounded to 2 decimal places is 15.38Write down the error interval for x.​

Mathematics
1 answer:
Stels [109]2 years ago
5 0

Answer:

The error interval for x is:

[15.375,15.384]

Step-by-step explanation:

In order to determine the error interval for x, We have to get the all the number which could be rounded off to 15.38.

These number can be listed in order such as:

15.375   15.376   15.377   15.378   15.379   15.380   15.381   15.382   15.383   15.384  

Therefore, the error interval for x is:

[15.375,15.384]

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Herb, a tennis player, has been struggling to develop a more consistent serve. He made the following remark to his partner durin
klasskru [66]

Answer:

Check once on regression to the mean

Check once on the availability hubristic

Check twice on sink cost effect

Check twice on the present aim standard of rationality.

Step-by-step explanation:

Since herb is driven by emotion and happenstance and not by actual overall statistics this seems like the way to answer the question.

5 0
2 years ago
The mass of a colony of bacteria, in grams, is modeled by the function P given by P(t)=2+5tan^−1.(t/2), where t is measured in d
ira [324]

Answer:

1.21 g/day

Step-by-step explanation:

We are given that

The mass of a colony of bacteria (in (grams) is given by

P(t)=2+5tan^{-1}(\frac{t}{2})

Where t=Time(in days)

Differentiate w.r.t t

P'(t)=5(\frac{1}{1+\frac{t^2}{4}}\times \frac{1}{2})

By using the formula \frac{d(tan^{-1}(x)}{dx}=\frac{1}{1+x^2}

P'(t)=\frac{5}{2}(\frac{4}{4+t^2})

P'(t)=\frac{10}{4+t^2}

We are given P(t)=6

Substitute the value

6=2+5tan^{-1}(\frac{t}{2})

5tan^{-1}(\frac{t}{2})=6-2=4

tan^}{-1}(\frac{t}{2})=\frac{4}{5}

\frac{t}{2}=tan(\frac{4}{5})

t=2tan(\frac{4}{5})

Substitute the value of t

P'(2tan\frac{4}{5})=\frac{10}{4+4tan^2(\frac{4}{5})}

P'(2tan\frac{4}{5})=\frac{10}{4}\times \frac{1}{1+tan^2(\frac{4}{5})}

We know that 1+tan^2\theta=sec^2\theta

Using the formula

P'(2tan(\frac{4}{5})=\frac{5}{2}\times \frac{1}{sec^2(\frac{4}{5})}

P'(2tan\frac{4}{5})=\frac{5}{2}\times cos^2(\frac{4}{5})

By using cos^2x=\frac{1}{sec^2x}

P'(2tan\frac{4}{5})=\frac{5}{2}\times (0.696)^2=1.21g/day

Hence,the instantaneous rate of change of the mass of the colony=1.21g/day

7 0
2 years ago
Read 2 more answers
A coffee bean processor can dry 4,815 pounds of coffee beans in 3 hours which unit rate correctly reflects the speed of the proc
zimovet [89]

Answer:

605 pounds/hour

Step-by-step explanation:

Given that a coffee bean processor can dry 4815 pounds of coffee in 3 hours.

We have to find the speed of the processor

By speed of the processor here we mean the unit rate i.e. no of pounds of coffee beans that the processor can process in one hour.

This is a question of direct variation

Since we have for 3 hours 4815

for 1 hour =\frac{4815}{3} =605 pounds/hour

So answer is 605 pounds/hour

Verify:

If unit rate is 605 pounds/hour, for 3 hours =605(3) = 4815 pounds

Thus verified

7 0
2 years ago
Read 2 more answers
What is the product of (negative 6) (negative 7) (negative 1)?
Neporo4naja [7]

Answer:

-42

Step-by-step explanation:

negative * negative = positive

positive * negative = negative

negative * positive = negative

(-6)(-7)(-1) =

= 42(-1)

= -42

5 0
2 years ago
Alicia records the total number of points scored in two games by 10 players on her basketball team. 28, 13, 4, 8, 15, 10, 22, 7,
madam [21]

Answer:

Choices are missing here.

However, we can find the plot that represents the data.

To draw a scatterplot, we just need to draw points, where the indepedent variable is going to be 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, that is the position of each player.

So, all points we need to draw the plot are:

(1, 28)

(2, 13)

(3, 4)

(4, 8)

(5, 15)

(6, 10)

(7, 22)

(8, 7)

(9, 11)

(10, 15)

The image attached shows the plot that represents this data set.

6 0
2 years ago
Read 3 more answers
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