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2 years ago

Im confuse gusy can u help me?

Mathematics

2 answers:

ivolga24 [154]2 years ago

3 0

Answer:

11. 333... which can also be written as 11 1/3.

Step-by-step explanation:

Sure.

√(6c - 4) = 8

Squaring both sides:

6c - 4 = 64

6c = 64 + 4 = 68

c = 68/6

= 11. 333...

sleet_krkn [62]2 years ago

3 0

Answer:

$c=\dfrac{34}{3}$

Step-by-step explanation:

Given equation:

$\sqrt{6c-4}=8$

Square both sides:

$\implies (\sqrt{6c-4})^2=8^2$

$\implies 6c-4=64$

Add 4 to both sides:

$\implies 6c-4+4=64+4$

$\implies 6c=68$

Divide both sides by 6:

$\implies \dfrac{6c}{6}=\dfrac{68}{6}$

$\implies c=\dfrac{34}{3}$

Verify the solution by inputting the found value of c back into the equation:

$\implies \sqrt{6\left(\dfrac{34}{3}\right)-4}$

$\implies \sqrt{\dfrac{204}{3}-4}$

$\implies \sqrt{68-4}$

$\implies \sqrt{64}$

$\implies \pm 8$

Therefore, the solution of the found value of c is verified.

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b) 896 deaths is a significantly high number, which means that there is cause for concern.

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$p = 0.149, n = 5000$

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$E(X) = np = 5000*0.149 = 745$

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The mean number is 745 and the standard deviation is 25.18.

b. In one region, 5000 death certificates are examined, and it is found that 896 deaths were attributable to myocardial infarction. Is there cause for concern? Why or why not?

Is 896 a significantly high number?

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