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3 years ago

7

Is the following relation a function yes or no (9th-grade algebra 1)

2 answers:

solniwko [45]3 years ago

5 0

Answer: its yes

Step-by-step explanation:

Alexxx [7]3 years ago

4 0

The given relation is NOT a function. By definition, a function is a relation in which no two ordered pairs have the same first component and different second components. In your given table, the y = -2 has two corresponding x values: it is paired with x = -1 and x = 6. Therefore, it is not a function.

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Suppose taxi fare from Logan Airport to downtown Boston is known to be normally distributed with a standard deviation of $2.50.

Mariulka [41]

Answer:

95% Confidence interval for taxi fare: ($20.5,$24.2)

Step-by-step explanation:

We are given the following data set: for fares:

$22.10, $23.25, $21.35, $24.50, $21.90, $20.75, and $22.65

Formula:

$Mean = \displaystyle\frac{\text{Sum of all observations}}{\text{Total number of observation}}$

$Mean =\displaystyle\frac{156.5}{7} = 22.35$

95% Confidence interval:

$\bar{x} \pm z_{critical}\frac{\sigma}{\sqrt{n}}$

Putting the values, we get,

$z_{critical}\text{ at}~\alpha_{0.05} = 1.96$

$22.35 \pm 1.96(\frac{2.5}{\sqrt{7}} ) = 22.35 \pm 1.85 = (20.5,24.2)$

6 0

3 years ago

30mL:45mL simplify the ratio

Elina [12.6K]

$30ml:45ml\\\\\dfrac{30}{45}=\dfrac{30:5}{45:5}=\dfrac{6}{9}=\dfrac{6:3}{9:3}=\dfrac{2}{3}\\\\\boxed{30ml:45ml=2ml:3ml}$

5 0

3 years ago

Read 2 more answers

If f=3,8 = 5, h= 10 find the value of<br>2f-g + h

Viktor [21]

That makes no sense. Can you rephrase the question?

8 0

2 years ago

What’s 17/12 as a mixed number

ddd [48]

1 and 5/12 is the simplst mixed

3 0

3 years ago

Josh wrote a whole number using the digits 8,4,7,2,9 and 0. Josh's number has a seven in the thousands and a 2 in the tens place

sweet [91]

Answer:

Step-by-step explanation:

Using the digits 8,4,7,2,9 and 0 to write a whole Number with 7 in the thousands place and 2 in the tens place :

The whole number is 6 digits long

100 thousand

10 thousand

Thousand = 7

Hundred

Tens = 2

Unit

Also the whole number is less than 500,000

Hence, number in the 100 thousand place is less Than 5,

Hence digit in the 100 thousand place = 4

Placing either 8 or 9 in the ten thousand place will mean That Josh's whole number is greater than 480,000

7 0

3 years ago