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denis-greek [22]
3 years ago
15

Please help, I am really bad at algebra

Mathematics
2 answers:
Marianna [84]3 years ago
6 0
The answer is (0,3)

Hope this helps you
Anestetic [448]3 years ago
6 0

Answer:

<em>a, b, c</em>

Step-by-step explanation:

f(x) = 3(1/4)^x

a. (-2, 48)

f(-2) = 3(1/4)^(-2) = 3(4)^2 = 3 * 16 = 48

(-2, 48) is on the graph.

b. (0, 3)

f(0) = 3(1/4)^(0) = 3(1) = 3

(0, 3) is on the graph.

c. (2, 3/16)

f(2) = 3(1/4)^(2) = 3(1/16) = 3/16

(2, 3/16) is on the graph.

d. (12, 0)

f(12) = 3(1/4)^(12) = 3(0.000000596)

f(12) does not equal zero.

(12, 0) is not correct

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Answer:

1 to 5

Step-by-step explanation:

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Please help me with this question thank you
Fantom [35]
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Three potential employees took an aptitude test. Each person took a different version of the test. The scores are reported below
BARSIC [14]

Answer:

Due to the higher Z-score, Demetria should be offered the job.

Step-by-step explanation:

Z-score:

In a set with mean \mu and standard deviation \sigma, the z-score of a measure X is given by:

Z = \frac{X - \mu}{\sigma}

The Z-score measures how many standard deviations the measure is from the mean. After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X. Subtracting 1 by the p-value, we get the probability that the value of the measure is greater than X.

In this question:

Whichever applicant had grade with the highest z-score should be offered the job.

Demetria got a score of 85.1; this version has a mean of 61.1 and a standard deviation of 12.

For Demetria, we have X = 85.1, \mu = 61.1, \sigma = 12. So

Z = \frac{X - \mu}{\sigma}

Z = \frac{85.1 - 61.1}{12}

Z = 2

Vincent got a score of 299.2; this version has a mean of 264 and a standard deviation of 22.

For Vincent, we have X = 299.2, \mu = 264, \sigma = 22.

Z = \frac{X - \mu}{\sigma}

Z = \frac{299.2 - 264}{22}

Z = 1.6

Tobias got a score of 7.26; this version has a mean of 7.1 and a standard deviation of 0.4.

For Tobias, we have X = 7.26, \mu = 7.1, \sigma = 0.4.

Z = \frac{X - \mu}{\sigma}

Z = \frac{7.26 - 7.1}{0.4}

Z = 0.4

Due to the higher Z-score, Demetria should be offered the job.

3 0
3 years ago
Nathan needs to order some new supplies for the restaurant where he works. The restaurant needs at least 571 forks. There are cu
Step2247 [10]

Answer:

The inequality representing  s, the number of sets of forks Nathan should buy is

s ≥ 21

Step-by-step explanation:

From the question, the restaurant needs at least 571 forks, i.e., if n represents the number of forks the restaurant needs, then

n ≥ 571

Also from the question, there are currently 361 forks. If y represents the number of forks the restaurant needs to buy, then

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Also, each set on sale contains 10 forks. if s represents the number of sets of forks Nathan should buy, then

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Hence, the inequality representing  s, the number of sets of forks Nathan should buy is

s ≥ 21

3 0
3 years ago
Can someone please help me with this asap I'm being timed ​
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Answer:

A, C, and D.

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The other does not go through the origin, therefore it is not proportional.

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