All categories

3 years ago

Round off the nearest place value 75,432,387

Mathematics

1 answer:

liberstina [14]3 years ago

7 0

Since you'd didn't specify what place value I'm assuming it's the whole number so the answer is: 80,000,000

You might be interested in

The SAT scores have an average of 1200 with a standard deviation of 60. A sample of 36 scores is selected. a) What is the probab

LiRa [457]

Answer:

a) 0.0082

b) 0.9987

c) 0.9192

d) 0.5000

e) 1

Step-by-step explanation:

The question is concerned with the mean of a sample.

From the central limit theorem we have the formula:

$z=\frac{\bar X-\mu}{\frac{\sigma}{\sqrt{n} } }$

a) $z=\frac{1224-1200}{\frac{60}{\sqrt{36} } }=2.40$

The area to the left of z=2.40 is 0.9918

The area to the right of z=2.40 is 1-0.9918=0.0082

$\therefore P(\bar X\:>\:1224)=0.0082$

b) $z=\frac{1230-1200}{\frac{60}{\sqrt{36} } }=3.00$

The area to the left of z=3.00 is 0.9987

$\therefore P(\bar X\:$

c) The z-value of 1200 is 0

The area to the left of 0 is 0.5

$z=\frac{1214-1200}{\frac{60}{\sqrt{36} } }=1.40$

The area to the left of z=1.40 is 0.9192

The probability that the sample mean is between 1200 and 1214 is

$P(1200\:$

d) From c) the probability that the sample mean will be greater than 1200 is 1-0.5000=0.5000

e) $z=\frac{73.46-1200}{\frac{60}{\sqrt{36} } }=-112.65$

The area to the left of z=-112.65 is 0.

The area to the right of z=-112.65 is 1-0=1

5 0

3 years ago

I go to a baseball field and survey the people in the stands, asking what is your favorite sport. Is this a fair sample of peopl

Alinara [238K]

Answer:

No.

Step-by-step explanation:

If you go to a baseball park and ask what their favorite sport is most will probably say baseball. Just as if you go to a basketball court, most would respond with basketball as their favorite sport. I suggest not going to anything related to sports and asking random people.

4 0

3 years ago

Use the substitution method to solve the system of equations: y - 2x = 3; -X = y - 9. Write the answer as a point.

aleksley [76]

Answer:

Hello! I just took the test not too long ago the answer is -3

Have a good day! please mark brainliest!

4 0

3 years ago

Aaron filled the bird bath with 72 ounces of water. A group of blue jays came by and drank 6.19 ounces. Then a vulture swooped i

nata0808 [166]

The water left in the bird bath is mathematically given as

x=53.21ounces

<h3> How much water is left in the bird bath?</h3>

Water is a compound of hydrogen and oxygen that may exist as a gas, a liquid, or a solid. It's a very common and crucial chemical element.

A colorless, odorless, and tasteless liquid at room temperature, it is still useful because of its capacity to dissolve a wide variety of other compounds.

Generally, the equation for the statement is mathematically given as

x=72-6.19-12.6

Therefore

x=53.21

In conclusion, water left in the bird bath is given as

x=53.21ounces