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Vika [28.1K]
2 years ago
14

The deepest plant root is 393.7 feet deep. What is the total depth of the root rounded to the nearest whole number?

Mathematics
2 answers:
kobusy [5.1K]2 years ago
7 0

Answer:

C.394

Step-by-step explanation:

Because the nearest one is 394

andreev551 [17]2 years ago
5 0

Answer:

C. 394 feet

Step-by-step explanation:

.7 is closer to the next whole number.

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What is the constant of proportionality in the equation y 5/4 x ?
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Answer:

Firest y5/ 4x = y5 - 4 /4X -4

x= y

7 0
3 years ago
If z1= 3+3i and z2=7(cos(5pi/9) + i sin (5pi/9)), then z1/z2= blank
mixas84 [53]

z1=\stackrel{a}{3}+\stackrel{b}{3}i~~ \begin{cases} r = \sqrt{a^2+b^2}\\ r = \sqrt{18}\\[-0.5em] \hrulefill\\ \theta =\tan^{-1}\left( \frac{b}{a} \right)\\ \theta =\frac{\pi }{4} \end{cases}~\hfill z1=\sqrt{18}\left[\cos\left( \frac{\pi }{4} \right) i\sin\left( \frac{\pi }{4} \right) \right] \\\\[-0.35em] ~\dotfill

\cfrac{z1}{z2}\implies \cfrac{\sqrt{18}\left[\cos\left( \frac{\pi }{4} \right) i\sin\left( \frac{\pi }{4} \right) \right]} {7\left[\cos\left( \frac{5\pi }{9} \right) i\sin\left( \frac{5\pi }{9} \right) \right]} \\\\[-0.35em] ~\dotfill\\\\ \qquad \textit{division of two complex numbers} \\\\ \cfrac{r_1[\cos(\alpha)+i\sin(\alpha)]}{r_2[\cos(\beta)+i\sin(\beta)]}\implies \cfrac{r_1}{r_2}[\cos(\alpha - \beta)+i\sin(\alpha - \beta)] \\\\[-0.35em] ~\dotfill

\cfrac{z1}{z2}\implies \cfrac{\sqrt{18}}{7}\left[\cos\left( \frac{\pi }{4}-\frac{5\pi }{9} \right)+i\sin\left( \frac{\pi }{4}-\frac{5\pi }{9} \right) \right] \\\\\\ \cfrac{\sqrt{18}}{7}\left[\cos\left( \frac{-11\pi }{36} \right) +i\sin\left( \frac{-11\pi }{36} \right) \right]\implies \cfrac{\sqrt{18}}{7}\left[\cos\left( \frac{83\pi }{36} \right) +i\sin\left( \frac{83\pi }{36} \right) \right] \\\\[-0.35em] ~\dotfill\\\\ ~\hfill \cfrac{z1}{z2}\approx 0.348~~ + ~~0.496i~\hfill

6 0
3 years ago
Find the sale price to the nearest hundredth. $129.40 rocking horse, 15% off *
insens350 [35]

Answer:

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Step-by-step explanation:

you first multiply 15 by 129.40, divide your product by 100, then you subtract your quotient by 129.40 to get the final price of how much the rocking horse will cost if its 15% off.

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umka2103 [35]
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$17.85
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The equation of the linear regression line represents the relationship between the number of laps a person can swim, x, and the
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