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2 years ago

This true or false????????? ill give brainliest if right

Mathematics

2 answers:

andriy [413]2 years ago

8 0

9514 1404 393

Answer:

False

Step-by-step explanation:

A relation is a function if and only if there is exactly one output for each input. Any relation map with two or more arrows coming from any input is NOT a function.

Here, the input "2" has two outputs, 4 and 5, so this map does not show a functional relationship.

stiv31 [10]2 years ago

3 0

Answer:

This is false.

Step-by-step explanation:

Hope this helps!!

You might be interested in

The Florida Everglades welcomes about

Bingel [31]

Answer:

14,000 visitors weekly

Step-by-step explanation:
Break the Equation Down.

10^3 = 10 x 10 x 10

10x10x10=1000 V

Put the 1000 within the problem.

2 x 1000

Solve

2 x 1000 = 2000 Visitors

7 days are within a week so multiply the daily visitors (2000) by 7

2000 x 7 = 14,000

Answer: 14,000 visitors weekly

Hope you like this way of solving! Let me know if have any questions!

3 0

2 years ago

Solve -4(2x - 1) = -6(x + 2) - 2. 1) -5 2) 5 3) 9 4) -9

ad-work [718]

Answer:

The answer is x=9 so, its option 3.

4 0

2 years ago

Read 2 more answers

A principal at a large high school wants to estimate the number of days freshmen regularly ride the bus to school.

nikitadnepr [17]

Answer:

b. using a sample of size 40

Step-by-step explanation:

edg 2020

5 0

2 years ago

Read 2 more answers

Find mystery number

In-s [12.5K]

The number is less than 190,000 and greater than 180,000

5,000 more than the number has 187 thousands

2000 less than the number has 4 hundreds

180, 000 <n> 190, 000

180,000 + 2000 = n = 5000-187, 000

182,000 = n = 182, 000

Or,

180, 000 <n> 190,000

n + 5000= 187, 000 n – 2000 = 180, 000

n= 187, 000- 5000 n = 180, 000 + 2000

n= 182, 000 n= 182, 000

5 0

3 years ago

Grades on a standardized test are known to have a mean of 1000 for students in the United States. The test is administered to 45

krok68 [10]

Answer:

The 95% confidence interval is $1003 < \mu$

Yes there is statistically significant evidence that students in Florida perform differently from other students in the United States

Step-by-step explanation:

From the question we are told that

The population mean is $\mu = 1000$

The sample size is $n = 453$

The sample mean is $\= x = 1013$

The standard deviation is $s = 108$

Given that the confidence level is 95% then the level of significance is mathematically represented as

$\alpha = 100 - 95$

=> $\alpha = 5\%$

=> $\alpha = 0.05$

The critical value for $\frac{\alpha }{2}$ obtained from the normal distribution table is

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

Generally the margin of error is mathematically represented as

$E = Z_{\frac{\alpha }{2} } * \frac{s}{\sqrt{n} }$

=> $E = 1.96 * \frac{108}{\sqrt{453} }$

=> $E = 9.946$

Generally the 95% confidence interval is mathematically represented as

$\= x - E < \mu < \= x + E$

=> $1013 - 9.946 < \mu < 1013 + 9.946$

=> $1003 < \mu$

Given that the population mean(1000) is not within the 95% confidence interval for l for the average test score for students in Florida, then it means that there is statistically significant evidence that students in Florida perform differently from other students in the United States

4 0

3 years ago