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Sedaia [141]
3 years ago
4

In a simple random sample of 70 automobiles registered in a certain state, 28 of them were found to have emission levels that ex

ceed a state standard. what proportion of the automobiles in the sample had emission levels that exceed the standard? round your answer to four decimal places. be sure to express your answer as a proportion (i.e., a probability) rather than a percentage.
Mathematics
1 answer:
Free_Kalibri [48]3 years ago
5 0
Proportion that exceed the standard = 28/70 = 2/5 = 0.4

Answer: 0.4
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Which of the following could describe the y-intercept?
lora16 [44]

Answer:

2,2

Step-by-step explanation:

6+7+8+0×0=0-6-6-6-6+7+7+8+4×0=0

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HELP ASAP PLEASE!!! AND PLEASE SHOW WORK 1. 20% OF ____= 40 2. 30% OF ____=90
lesya692 [45]

Answer: 1. 200, 2. 300

Step-by-step explanation:

40 * 10/2 = 400/2 = 200

or this way:

40 = 20%

40/2 = 20

20 = 10%

20 * 10 = 200

——————————————

90 * 10/3 = 900/3 = 300

or this way:

90 = 30%

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3 years ago
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24,548,794 wordfrom
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Twenty four million five hundred forty eight thousand seven hundred ninety four.
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4 years ago
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K=1; f(x)=4x^3-2x^2+2x+4; Lower bound?
photoshop1234 [79]
Given:
f(x) = 4x^{3} - 2x^{2} + 2x + 4
and,
K = 1

We would require to do the synthetic division of the above problem in order to know whether K=1 is a lower bound or not. Let's do it!

Steps of Synthetic Division:

1. Write the coefficients of the equation, and before that write 1. Like,

1 ║ 4   -2   2   4

As you can see, the coefficients of the equation are seperated by ║.

2. Drop down the first value after ║as it is. Like:
1 ║ 4   -2   2   4
        :
----------------------
       4

3. Multiply 4 with 1 and then  place the resultant value under -2 and then add that resultant value with -2. Like
1 ║ 4   -2   2   4
        :    4
----------------------
       4   2

4. Repeat Step 3 until you're done.

1 ║ 4   -2   2   4
        :    4   2   
----------------------
       4   2    4   

1 ║ 4   -2   2   4
        :    4   2   4
----------------------
       4   2    4   8


Now every value, +4, +2, +4, +8, under the bar(---------) is positive; therefore, it means that K=1 is the upper bound, NOT lower bound.

Ans: K=1 is NOT a lower bound.
-i
4 0
3 years ago
2x -9 &lt; 7<br> Please answer
Marysya12 [62]

Answer:

18(<) 7= False

Step-by-step explanation:

1)-9×2=18

2)18(<) 7

3) The equation is Fasle.

6 0
3 years ago
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