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3 years ago

Write 192.07 in words

Mathematics

2 answers:

Pavel [41]3 years ago

7 0

Answer:

one hundred and ninety two point zero seven

Step-by-step explanation:

idk guess

quester [9]3 years ago

7 0

Answer:

One hundred ninety-two point zero seven

Step-by-step explanation:

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The histogram shows the number of payphones that were active by year in a large city. How many payphones would you expect to be

tangare [24]

Answer:

Between 150 and 200

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3 years ago

Which expression is equivalent to ( 7^-2 x 3^5 ) ^-2

finlep [7]

The answer is 7^4 / 3^10.

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1 year ago

Solve 18 > 12 + 2. Graph the solution.

Whitepunk [10]

Answer:

Step-by-step explanation:

Decimal Form:

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2 years ago

9.4 The heights of a random sample of 50 college stu- dents showed a mean of 174.5 centimeters and a stan- dard deviation of 6.9

gladu [14]

Answer: a) (176.76,172.24), b) 0.976.

Step-by-step explanation:

Since we have given that

Mean height = 174.5 cm

Standard deviation = 6.9 cm

n = 50

we need to find the 98% confidence interval.

So, z = 2.326

(a) Construct a 98% confidence interval for the mean height of all college students.

$x\pm z\times \dfrac{\sigma}{\sqrt{n}}\\\\=(174.5\pm 2.326\times \dfrac{6.9}{\sqrt{50}})\\\\=(174.5+2.26,174.5-2.26)\\\\=(176.76,172.24)$

(b) What can we assert with 98% confidence about the possible size of our error if we estimate the mean height of all college students to be 174.5 centime- ters?

Error would be

$\dfrac{\sigma}{\sqrt{n}}\\\\=\dfrac{6.9}{\sqrt{50}}\\\\=0.976$

Hence, a) (176.76,172.24), b) 0.976.

8 0

2 years ago

An elevator is on the twentieth floor. It goes down 11 floors and then up 5 floors. What floor is the elevator now

Llana [10]

To solve problems like this, we must simply break it down and read each part carefully. We can also set it up as a math problem to make it easier to visualize.

The elevator starts on the twentieth floor, so we will represent that with 20.

20

It goes down 11 floors, so we can represent that with a -11.

20-11=9

Now we are on floor 9. Then, we go up 5 floors, so we can represent that with a 5.

9+5=14

Using the math above, we can see the elevator is on the 14th floor.

6 0

3 years ago