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Lunna [17]
1 year ago
7

Find the solution set for the given inequality if the replacement set is {1, 2, 3, 4, 5}.

Mathematics
1 answer:
Nitella [24]1 year ago
4 0

Answer:

The Ans. {2, 3, 4, 5}

Step-by-step explanation:

5x – 2 ≥ 8 when we will replace the given values{1, 2, 3, 4, 5} insted of X we get true solution set by {2, 3, 4, 5}

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Tammys desk had 7/12 grams of dust on it she wiped away 5/12 grams of the dust how many grams of dust are left on her desk write
nexus9112 [7]

Answer:

2/12

Step-by-step explanation:

7/12 -5/12 = 2/12

the number 2 can go into 2 once and 12 six times so you should get 1/6 as your answer

7 0
3 years ago
A computer manufacturing company has sent a mail survey to 2,800 of its randomly selected customers that have purchased a new la
vodka [1.7K]

Answer:

The 96% confidence interval for the population proportion of customers satisfied with their new computer is (0.77, 0.83).

Step-by-step explanation:

We have to calculate a 96% confidence interval for the proportion.

We consider the sample size to be the customers that responded the survey (n=800), as we can not assume the answer for the ones that did not answer.

The sample proportion is p=0.8.

p=X/n=640/800=0.8

The standard error of the proportion is:

\sigma_p=\sqrt{\dfrac{p(1-p)}{n}}=\sqrt{\dfrac{0.8*0.2}{800}}\\\\\\ \sigma_p=\sqrt{0.0002}=0.014

The critical z-value for a 96% confidence interval is z=2.054.

The margin of error (MOE) can be calculated as:

MOE=z\cdot \sigma_p=2.054 \cdot 0.014=0.03

Then, the lower and upper bounds of the confidence interval are:

LL=p-z \cdot \sigma_p = 0.8-0.03=0.77\\\\UL=p+z \cdot \sigma_p = 0.8+0.03=0.83

The 96% confidence interval for the population proportion is (0.77, 0.83).

4 0
3 years ago
HELPPPPP I NEEED TO GET A GOOD GRADE OR I'M BUSTEDDDDDDDD!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
lesantik [10]

Answer:

D) -31

Step-by-step explanation:

use PEMDAS

3^2-(5 x 2^3)

3^2-(5 x 8)

3^2-40

9-40

-31

3 0
2 years ago
Read 2 more answers
Richie's average on his math tests was 64%. On the next test he had a mark of 76%, and this raised
joja [24]

Answer:

68

Step-by-step explanation:

5 0
3 years ago
In the vote for school president, 476 seniors voted for one or the other of the 2 candidates. The candidate who won has a majori
anastassius [24]
476/2 = 238
238+94 = 332
238-94 = 144
332 seniors voted for the winner
6 0
3 years ago
Read 2 more answers
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