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1 year ago

15

If it is known that a+b/a-b=c, find the following: 2a-2b/5a+5b

1 answer:

sergiy2304 [10]1 year ago

4 0

If (a+b)/(a-b)=c, then (a-b)/(a+b)=1/c
(2a-2b)/(5a+5b)=2(a-b)/5(a+b)=2/5 *1/c=2/(5c)

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Cleveland has 64 fl Oz of orange juice how many pints of orange juice does cleveland have??

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Answer:

4 pints

Step-by-step explanation:

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Answer:

No these these result do not differ at 95% confidence level

Step-by-step explanation:

From the question we are told that

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The second concentrations is $c _2 = 52.9 \ g/m^3$

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The second sample size is $n_2 = 32$

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The mean for Tunnel is $\= x _2 = \frac{c_2}{n} = \frac{52.9}{32} = 1.6531$

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Generally the test statistics is mathematically represented as

$t = \frac{\= x_1 - \= x_2}{ \sqrt{\frac{\sigma_1^2}{n_1} +\frac{\sigma_2^2}{n_2} }}$

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$df = 32+ 32 - 2$

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=> $\alpha =0.05$

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$t_c = 2 * t_{0.05 , 62}$

From the student t- distribution table

$t_{0.05, 62} = 1.67$

So

$t_c = 2 * 1.67$

=> $t_c = 3.34$

given that

$t_c > t$ we fail to reject the null hypothesis so this mean that the result do not differ

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2 years ago

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Answer:

$\left ( x+5 \right )^{2}+\left ( y-6 \right )^{2}= 9$

Step-by-step explanation:

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And it is also mentioned that a power outage affected all homes and businesses within a 3 mile radius of the power station. So if we plot all the furthest points from the station affected by the power outage it will be a circle of radius 3 miles and center at (-5,6).

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1 year ago