Solve the following equation. Then place the correct number in the box provided. 3x > -3

Mathematics

1 answer:

AlexFokin [52]3 years ago

5 0

divide both sides by 3

3x/3>-3/3

x>-1

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Solve for x: x/2x+3 + 2x+3/x = 184/65

Marat540 [252]

Answer:

x/2x+3 + 2x +3/x = 184 /65

x(2x + 3)–1 + (2x+3)x-1 = 184/65

(2x + 3)x / (2x +3)x = 184/65

2x² + 3x / 2x² + 3x = 184/65

1x= 184/64

x = 184/64

6 0

2 years ago

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Criminal investigators use biometric matching for fingerprint recognition, facial recognition, and iris recognition. When matchi

Art [367]

Answer:

It is not a Type I error neither a Type II error.

Step-by-step explanation:

Let $\mu$ be the true mean match score. The null hypothesis is $H_{0}: \mu = 80$ and the alternative hypothesis is $H_{1}: \mu > 80$ (upper-tail alternative). When the test shows that the mean match score is more than 80 when actually is equal to 80 a Type I error is made. On the other hand, when the test shows that the mean match score is equal to 80 when actually is more than 80 a type II error is made. Therefore, when the test shows that the mean match score is more than 80 when the person does not actually have a fingerprint match, does not correspond to a Type I error neither to a Type II error.