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2 years ago

Find a solution to 3cos(θ)=−0.862 in radians

1 answer:

7 0

$3cos(\theta) = -0.862$
$\frac{3cos(\theta)}{3} = \frac{-0.862}{3}$
$cos(\theta) = -\frac{431}{1500}$
$cos^{-1}[cos(\theta)] = cos^{-1}(-\frac{431}{1500})$
$\theta = 106.6983737\°$
$\theta = 1.86223792^{r}$

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Step-by-step explanation:

We need to understand what is a unique polygon?

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H0: The new cancer drug increases the mean survival time by 30 days

Ha: The new cancer drug increases the mean survival time by 30 or more than 30 days.

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Step-by-step explanation:

The null hypothesis is a statement from a population parameter which is either rejected or accepted (fail to reject) upon testing. It is expressed using the equality sign.

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It would therefore be concluded that the new cancer drug increases the mean survival time by 30 days.

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