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4 years ago

Which point best approximates 45

Mathematics

2 answers:

AfilCa [17]4 years ago

6 0

Answer:

it would be between 4 and 5, on edge its choice C

Step-by-step explanation:

Rashid [163]4 years ago

3 0

What do you mean by point? Can you explain this? If you mena on a graph it would be a letter. If any other, im not sure.

You might be interested in

he amount of time that a customer spends waiting at an airport check-in counter is a random variable with mean 8.3 minutes and s

sp2606 [1]

Complete question:

He amount of time that a customer spends waiting at an airport check-in counter is a random variable with mean 8.3 minutes and standard deviation 1.4 minutes. Suppose that a random sample of n equals 47 customers is observed. Find the probability that the average time waiting in line for these customers is

a) less than 8 minutes

b) between 8 and 9 minutes

c) less than 7.5 minutes

Answer:

a) 0.0708

b) 0.9291

c) 0.0000

Step-by-step explanation:

Given:

n = 47

u = 8.3 mins

s.d = 1.4 mins

a) Less than 8 minutes:

$P(X$

P(X' < 8) = P(Z< - 1.47)

Using the normal distribution table:

NORMSDIST(-1.47)

= 0.0708

b) between 8 and 9 minutes:

P(8< X' <9) = $[\frac{8-8.3}{1.4/ \sqrt{47}}< \frac{X'-u}{s.d/ \sqrt{n}} < \frac{9-8.3}{1.4/ \sqrt{47}}]$

= P(-1.47 <Z< 6.366)

= P( Z< 6.366) - P(Z< -1.47)

Using normal distribution table,

$NORMSDIST(6.366)-NORMSDIST(-1.47)$

0.9999 - 0.0708

= 0.9291

c) Less than 7.5 minutes:

P(X'<7.5) = $P [Z< \frac{7.5-8.3}{1.4/ \sqrt{47}}]$

P(X' < 7.5) = P(Z< -3.92)

NORMSDIST (-3.92)

= 0.0000

3 0

3 years ago

karen has 60 dollars in a savings account. the interest rate is 10% and is not compounded. how much will she have in 1 year

lisov135 [29]

$66. 10% of $60 is $6, so add that to $60.

3 0

3 years ago

Y is inversely proportional to a^3

Ludmilka [50]

Answer:

y = 0.64/x^3

Step-by-step explanation:

If y is inversely proportional to a^3, we can write the equation:

y * a^3 = k

Using a = 2 and y = 10, we have:

10 * 2^3 = k

k = 80

If a is directly proportional to x, we can write the equation:

a = c * x

Using x = 4 and a = 20, we have:

20 = c * 4

c = 5

Now, using the value of a = 5*x in the equation y * a^3 = 80, we have:

y * (5x)^3 = 80

y * 125x3 = 80

y = 80/(125x3) = 0.64/x^3

6 0

3 years ago

The picture says it all please help

Mariulka [41]

The only two points that I can clearly see are (0,2) and (5,3).

The slope is (y2-y1)/(x2-x1), in this case:

m=(3-2)/(5-0)=1/5

So the slope of the line is 1/5

6 0

3 years ago

(45.22 – 73.91) – |65.85 – 79.15|

DerKrebs [107]

B. -41.99 is your answer.

Hope this helps & good luck. :)

8 0

4 years ago