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3 years ago

8

Which of these units should be used to measure the mass of a slice of bread? A. milligram B. centigram C. gram D. kilogram

2 answers:

marta [7]3 years ago

7 0

Answer:

D. Gram

Step-by-step explanation:

kotegsom [21]3 years ago

3 0

Answer:gram

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Assume the mean useful life of a particular light bulb is 2,000 hours and is normally distributed with a standard deviation of 3

Yuri [45]

The mean = 2,000
s = Sigma ( standard deviation ) = 300
M - 2 s = 2,000- 2 * 300 = 2,000 - 600 = 1,400
M + 2 s = 2,000 + 2 * 300 = 2,000 + 600 = 2,600
Answer.
Useful life of light bulbs within 2 standard deviations of the mean is:
A ) Between 1,400 and 2,600 hours

4 0

2 years ago

Can someone please help me<br> Please answer it right

Likurg_2 [28]

Answer:

25 more inches

Step-by-step explanation:

3 0

2 years ago

Please help me!!!!!!

IgorC [24]

Answer:

13.5 ft²

Step-by-step explanation:

This is also a trapezoid so we can do this formula:

$A=\frac{a+b}{2} *h\\\\A=\frac{3+6}{2} *3\\\\A=\frac{9}{2} *3\\\\A=4.5*3\\A=13.5$

3 0

3 years ago

Suppose the rate of type II diabetes in 40- to 59-year-olds is 7% among Caucasians, 10% among African-Americans, 12% among Hispa

melomori [17]

Answer:

The overall probability of type II diabetes among 40- to 59-year-olds in Houston is 9.3%.

Step-by-step explanation:

We have these following rates of type II diabetes:

7% among Caucasians

10% among African-Americans

12% among Hispanics

5% among Asian-Americans.

The ethnic distribution of Houston is:

30% Caucasian

25% African-American

40% Hispanic

5% Asian-American

What is the overall probability of type II diabetes among 40- to 59-year-olds in Houston?

$P = P_{1} + P_{2} + P_{3} + P_{4}$

$P_{1}$ is the probability of finding a Caucasian with type II diabetes in Houston. So it is 7% of 30%.

$P_{1} = 0.07*0.30 = 0.021$

$P_{2}$ is the probability of finding an African-American with type II diabetes in Houston. So it is 10% of 25%.

$P_{2} = 0.1*0.25 = 0.0215$

$P_{3}$ is the probability of finding a Hispanic with type II diabetes in Houston. So it is 12% of 40%.

$P_{3} = 0.12*0.40 = 0.048$

$P_{4}$ is the probability of finding an Asian-American with type II diabetes in Houston. So it is 5% of 5%.

$P_{3} = 0.05*0.05 = 0.0025$

$P = P_{1} + P_{2} + P_{3} + P_{4} = 0.021 + 0.0215 + 0.048 + 0.0025 = 0.093$

The overall probability of type II diabetes among 40- to 59-year-olds in Houston is 9.3%.

4 0

3 years ago

The rocket that carried the Curiosity Rover to Mars traveled at a speed of 21,000 miles per hour. What is this speed to the near

fenix001 [56]

Answer:

there are 60 minutes per hour and 60 seconds per minute

60x 60 = 3600 seconds her hour

21000/3600 = 5.83 miles per second

Step-by-step explanation:

3 0

3 years ago

Read 2 more answers