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2 years ago

Can the statement be written as a biconditional statement and why?????

Mathematics

1 answer:

Gwar [14]2 years ago

5 0

No. Writing it as a biconditional would mean that "If a number is odd, then it is a prime number" is also true. The original statement is true, but the converse is false.

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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

2 years ago

E B 30 24 25 20 А 15 с D 18 F The scale factor is

Finger [1]

Answer:

5:6

Step-by-step explanation:

20/4=5

24/4=6

20:24 ratio simplified is 5:6

sorry if wrong

3 0

2 years ago

What's the solution and answer? And explain please

Advocard [28]

The solution is subtract4.7x on both sides. Then you get -2.2x=7.7. Divide 7.7 by -2.2 and you get x= -3.5

7 0

2 years ago

Ab = 13 + 2x bc = 12 ac = x + 32 what does X and AB, BC, and AC equal?

kodGreya [7K]

Answer:

AC is equal to BA and BC is equal to CB

6 0

2 years ago

Read 2 more answers

Hi I really need help

denis-greek [22]

To solve this, you can first solve each expression:

35 / 6 = 5.83333

5 + 3/10 = 5.3

5 = 5

35 / 10 = 3.5

15 / 5 = 5

5 + 5/6 = 5.8333333

3 = 3

10 * 1/2 = 5

So, the tiles of 5, 15*1/5, and 10*1/2 all equal 5.

The tiles of 35/6 and 5+5/6 equal 5.83333.

The remaining tiles to not have matches.

4 0

3 years ago

Read 2 more answers