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astraxan [27]
3 years ago
12

Write the polar coordinates (3, π) in rectangular form.

Mathematics
1 answer:
nlexa [21]3 years ago
6 0

\bf (\stackrel{\stackrel{r}{\downarrow }}{3}~~,~~\stackrel{\stackrel{\theta }{\downarrow }}{\pi })~~\begin{cases}x=rcos(\theta )\\y=rsin(\pi )\end{cases}\implies [3cos(\pi )~~,~~3sin(\pi )]\\[2em][3(-1)~~,~~3(0)]\implies \boxed{(-3,0)}

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Ninety percent of what number is 45
hram777 [196]
Divide 45 by 90%
45÷0.90=50

Check your work:
=50*90%
=50*0.90
=45

45 is 90% of 50

Hope this helps! :)
7 0
3 years ago
Asking this again because the person who answered the last one gave the incorrect answer. If 7 iced cupcakes cost $21, then how
Lemur [1.5K]

Answer:

$15 for 5 cupcakes

6 0
3 years ago
Dave paints 125 feet of the fence in 5 hours. Eric paints 175 feet in 7 hours whose rate is faster
eduard

Answer:

Erics rate is faster

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7 0
3 years ago
Tapiwa takes 5% more leaves than adam raked. together they raked 697 liters of leaves
Nina [5.8K]
----------------------------------
Define their percentage:
----------------------------------
Adam = 100%
Tapiwa = 100 + 5 = 105%

----------------------------------
Find their total percentage:
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100 + 105 = 205

----------------------------------
Find 1%
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205% = 697 liters
1% = 3.4 liters

----------------------------------
Find 100% (Adam):
----------------------------------
100% = 3.4 x 100
100% = 340 liters

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Find 105% (Tapiwa):
----------------------------------
105% = 3.4 x 105 
105% = 357 liters

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Answer: Tapiwa =  357 liters and Adam = 340 liters.
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8 0
3 years ago
Evaluate 9+ w/5 + 5h when h= -8 and w= 20
andrezito [222]

Answer:

<u><em>Answer is below</em></u>

Step-by-step explanation:

<u><em>Evaluate for h=−8,w=20</em></u>

<u><em>9+20/5+(5)(-8)</em></u>

<u><em>So therefore your answer would be -27</em></u>

5 0
3 years ago
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