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4 years ago

What is the absopute value of 7

Mathematics

2 answers:

MrMuchimi4 years ago

6 0

Answer:

The absolute value of 7 would just be 7. If there was a negative sign in front of the absolute value bars, it would be negative 7. But there isnt

so the absolute value of 7 is 7.

Step-by-step explanation:

olya-2409 [2.1K]4 years ago

6 0

Answer:

The absolute value of every number is the positive number of itself.

Tips:

| = absolute value equation

Step-by-step explanation:

| -5 + -5 | = 10, instead of -10, because it's asking for the absolute value.

Absolute value:

How many digits away from zero the total sum is.

And for this fact, it's always a positive number, no matter what.

negative 5 is 5 digits away from zero. 5, not negative 5.

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3 years ago

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Answer:

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3 years ago

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Sam spent $1.08 to make 18 copies at office max.At that rate how much will he pay to make 40 copies?

Alona [7]

Answer:

$2.40

Step-by-step explanation:

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3 years ago

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3 years ago

A genetic experiment with peas resulted in one sample of offspring that consisted of 438 green peas and 173 yellow peas.

Andre45 [30]

Answer:

The 95% confidence interval is $0.2474 < p < 0.3188$

The result obtained does not contradict expectation

Step-by-step explanation:

From the question we are told that

The number of green peas is k = 438

The number of yellow peas is u = 173

Generally the sample size is mathematically represented as

$n = k + u$

=> $n = 438 + 173$

=> $n = 611$

Generally the sample proportion for yellow peas is

$\^ p = \frac{u}{n}$

=> $\^ p = \frac{173}{611 }$

=> $\^ p = 0.2831$

From the question we are told the confidence level is 95% , hence the level of significance is

$\alpha = (100 - 95 ) \%$

=> $\alpha = 0.05$

Generally from the normal distribution table the critical value of $\frac{\alpha }{2}$ is

$Z_{\frac{\alpha }{2} } = 1.96$

Generally the margin of error is mathematically represented as

$E = Z_{\frac{\alpha }{2} } * \sqrt{\frac{\^ p (1- \^ p)}{n} }$

=> $E = 1.96 * \sqrt{\frac{ 0.2831 (1- 0.2831)}{611} }$

=> $E = 0.0357$

Generally 95% confidence interval is mathematically represented as

$\^ p -E < p < \^ p +E$

=> $0.2831 -0.0357$

=> $0.2474 < p < 0.3188$

From the question we are told that it was expected that 25% of the offspring peas will be yellow

Now from the 95% confidence interval obtained we see that the expected sample proportion(25% ) falls within it so it means that the result obtained does not contradict expectation

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3 years ago