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tensa zangetsu [6.8K]

3 years ago

12

On a rectangle hyperbola, if one point is (2,3) and y varies inversely to x, find y when x is 6

1 answer:

s344n2d4d5 [400]3 years ago

4 0

<span>The graph of y against x in inverse proportion is a rectangular hyperbola but I don't see at all how this knowledge/observation is any help in solving the problem.

Inverse proportion means that as x doubles y will halve and the equation is xy = k where k is some number. A good example of inverse proportion is speed and time taken over some fixed distance. In this case x could represent the speed (mph) and y the time (h) and then k is the distance in miles.

Since we know y=3 when x=2 we have xy = 6. Now it's easy to see when x=6 y=1.</span>

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Find the area of the shaded segment below. Use 3.14 for pi.

frutty [35]

Answer:

20.2 ft^2

Step-by-step explanation:

Working shown in the pic.

8 0

3 years ago

A random sample of the amounts for 22 purchases was taken. The mean was $42.97, the standard deviation was $22.82, and the m

Illusion [34]

Answer: a) 84 and b ) 2084

Step-by-step explanation:

Given : Sample standard deviation : s= $22.82

(Population standard deviation is unknown ) , so we use t-test.

Critical value or the 95% confidence intervals : $t_{n-1}*=2.0$

Formula to find the sample size :

$n=(\dfrac{t^*\cdot s}{E})^2$

a) E = 5

$n=(\dfrac{(2)\cdot 22.82}{5})^2$

$n=(9.128)^2=83.320384\approx84$

i.e. Required sample size : n= 84

b) E = 1

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$n=(45.64)^2=2083.0096\approx2084$

i.e. Required sample size : n= 2084

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3 years ago

If each commercial lasts 1/2 minute how many commercials are there in a 4-hour program?

Ivenika [448]

Answer:

if each commercial lasts 1/2 minute how many commercials are there in a 4-hour program?

480

Step-by-step explanation:

4 hours= 240 mins

240/0.5=480

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4 years ago

What is 11+15+11+15+11+15+11+15+11+15+11+15+11+15 simplified

bija089 [108]

The correct answer is 182

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4 years ago

Read 2 more answers

Round to the nearest integer 31.4829

Lady_Fox [76]

9514 1404 393

Answer:

31

Step-by-step explanation:

The fractional part of the given number is 0.4829, which is less than 0.5. That means the nearest integer is the integer below the given number:

31

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3 years ago