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3 years ago

When I use 14 cat lovers to pet 350 cats, it takes 15 days. How long would it take to pet 480 cats if I use 18 cat lovers?

Mathematics

1 answer:

nika2105 [10]3 years ago

6 0

I think it would take 16 days

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The sales of lawn mowers t years after a particular model is introduced is given by the function y = 5500 ln (9t + 4), where y i

alexandr402 [8]

Answer:

22,332

Step-by-step explanation:

Put 6 where t is in the equation and do the arithmetic.

... y = 5500 ln(9·6 +4) = 5500 ln(58) ≈ 22,332

3 0

3 years ago

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You ate 2⁄3 of the pizza. How many twelfths is that?

Kipish [7]

You would multiply 2x4 and 3x4 and it would be 8/12 so that leaves you with 4 twelths left.

5 0

3 years ago

The manager of a bank recorded the amount of time each customer spent waiting in line during peak business hours one Monday. The

zavuch27 [327]

The standard deviation of the frequency distribution is 5.54

<h3>How to determine standard deviation?</h3>

The table of values is given as:

x f(x)

0-3 13

4-7 13

8-11 10

12-15 11

16-19 0

20-23 3

Rewrite the table by calculating the class midpoints:

x f(x)

1.5 13

5.5 13

9.5 10

13.5 11

17.5 0

21.5 3

Start by calculating the mean using:

$\bar x = \frac{\sum fx}{\sum f}$

This gives

$\bar x = \frac{1.5 * 13 + 5.5 * 13 + 9.5 * 10 + 13.5 * 11 + 17.5 * 0 + 21.5 * 3}{13 + 13 + 10 + 11 + 0 +3}$

Evaluate

$\bar x = 7.98$

The standard deviation is then calculated as:

$\sigma = \sqrt{\frac{\sum f(x - \bar x)^2}{\sum f }}$

So, we have:

$\sigma= \sqrt{\frac{13 * (1.5 - 7.98)^2 + 13 * (5.5 - 7.98)^2 + (9.5 - 7.98)^2 * 10 + (13.5 - 7.98)^2 * 11 + (17.5 - 7.98)^2 * 0 + (21.5 - 7.98)^2 * 3}{13 + 13 + 10 + 11 + 0 +3}}$

Evaluate

$\sigma= \sqrt{30.6496}$

Solve

$\sigma= 5.54$

Hence, the standard deviation is 5.54

Read more about standard deviation at:

brainly.com/question/15858152

#SPJ1

7 0

1 year ago

(WILL GIVE BRAINLIEST) In right ∆ABC with m∠B=30°, AC = 4. Find HB

goblinko [34]

Answer:

HB would be 90 degrees

Step-by-step explanation:

7 0

3 years ago

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Reduce to the lowest term 5/4 + 2/3 = ?

liubo4ka [24]

5/4=15/12
2/3=8/12
15/12+8/12=23/12

7 0

3 years ago

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