2 years ago

What is the perimeter of kite WXYZ?

Mathematics

1 answer:

liq [111]2 years ago

8 0

Answer:

C on Edge. 2 (square root of 53) +10 units

Step-by-step explanation:

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Soon after taking an aspirin, a patient has absorbed 320 mg of the drug. after 3 hours, only 40 mg remain. find an exponential m

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The equation will be of the form:
$A(t)= A_{0} e^{rt}$
where A is the amount after t hours, and r is the decay constant.
To find the value of r, we plug the given values into the equation, giving:
$40=320e^{3r}$
Rearranging and taking natural logs of both sides, we get:
$ln\ 0.125=3r$
$r=\frac{ln\ 0.125}{3}=-0.693$
The required model is:
$A=A _{0} e^{-0.693t}$

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2 years ago

Paint is sold in a cylindrical container with a radius of 4 inches and a height of 10 inches. If the paint costs $0.05 per cubic

galina1969 [7]

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Step-by-step explanation:

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3 years ago

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the mean percentage of a population of people eating out at least once a week is 57% with a standard deviation of 3.5 %. assume

zhuklara [117]

Given:
Population proportion, $\mu _{p}$ = 57% = 0.57
Population standard deviation, σ = 3.5% = 0.035
Sample size, n = 40
Confidence level = 95%

The standard error is
$SE_{p} = \sqrt{ \frac{p(1-p)}{n} } = \sqrt{ \frac{0.57*0.43}{40} } =0.0783$

The confidence interval is
$\hat{p} \pm z^{*}SE_{p}$
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$\hat{p}$ = sample proportion
z* = 1.96 at the 95% confidence lvvel

The sample proportion lies in the interval
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Answer: Between 0.417 and 72.4), or between (41% and 72%)

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3 years ago

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Answer:

Step-by-step explanation: ok

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2 years ago

I need help fr!! ignore the writing lol

Romashka [77]

Answer:

-40

Step-by-step explanation:

(-7)(5)-5=-35-5=-40

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