3 years ago

3x+1−2(yz) when x = 3, y=12 , and z=−1 solve

Mathematics

1 answer:

skad [1K]3 years ago

5 0

I think the answer is 9 i might be wrong

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the expression 5n+2 can be used to find total cost in dollars of bowling where n is the number of games bowled 2 represents the

exis [7]

So justsubsitue 3 for n
5(3)+2
15+2
17
answer is 17

3 0

3 years ago

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3 divided by 4 is 3/4 what is 1/4 of 3

Zigmanuir [339]

Answer:

0.75 or 3/4

Step-by-step explanation:

1/4 of 3 would still end up to be 3/4 or as a decimal it would be .75

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3 years ago

What is the product of 710 and 323? 135 11315 21730 3715

Firlakuza [10]

Answer:

I think I answer is 21730 I'm not sure tho

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2 years ago

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,

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

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

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3 years ago

You are filling a 5-L fish tank using a 250-mL container. How many full containers are required to fill the fish tank?

VLD [36.1K]

5L is 5000 mLso it would take 20

4 0

3 years ago

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