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astraxan [27]
2 years ago
11

HELP PLEASEE FOR HW!!!

Mathematics
2 answers:
PtichkaEL [24]2 years ago
7 0

Answer:

200+15x=320

x= 8

saveliy_v [14]2 years ago
3 0
200+15x=320

and then the actual answer to the question is 8 lawns.
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Find The art length of a sector with an area of 8 square units.
frez [133]
\bf \textit{area of a sector of a circle}\\\\
A=\cfrac{\theta \pi r^2}{360}\quad 
\begin{cases}
r=radius\\
\theta =angle~in\\
\qquad degrees\\
------\\
A=8\\
r=4
\end{cases}\implies 8=\cfrac{\theta \pi 4^2}{360}\implies \cfrac{8\cdot 360}{4^2\pi }=\theta 
\\\\\\
\cfrac{2880}{16\pi }=\theta \implies \boxed{\cfrac{180}{\pi }=\theta }\\\\
-------------------------------\\\\

\bf \textit{arc's length}\\\\
s=\cfrac{\theta \pi r}{180}\quad 
\begin{cases}
r=radius\\
\theta =angle~in\\
\qquad degrees\\
------\\
\theta =\frac{180}{\pi }\\
r=4
\end{cases}\implies s=\cfrac{\frac{180}{\underline{\pi} }\underline{\pi} \cdot 4}{180}\implies s=\cfrac{\underline{180}\cdot 4}{\underline{180}}
\\\\\\
\boxed{s=4}

if you do a quick calculation on what that angle is, you'll notice that it is exactly 1 radian, and an angle of 1 radian, has an arc that is the same length as its radius.

that's pretty much what one-radian stands for, an angle, whose arc is the same length as its radius.
6 0
3 years ago
What is the slope of the graph? (PLEASE HELP)
Snowcat [4.5K]

to calculate the slope m , use the ' gradient formula '

m = \frac{y_{2-y_{1} } }{x_{2-x_{1} } }

with (x_{1},y_{1} ) = (0, - 1 ) and (x_{2},y_{2}) = (1, 5 )

m = \frac{5+1}{1-0} = 6










0

4 0
3 years ago
Read 2 more answers
in 2010 the population of rhode island was approximately 1053000. if the population decrease was 0.3% find the population of rho
maks197457 [2]
1049841 1053000x.003=3159 1053000-3159=1049841
4 0
2 years ago
Deondre purchased a piece of investment property for $34,500. He anticipates each year it will increase in value by 3.2% over th
Jlenok [28]

Answer:

f(x) = 34,500 × (1.032)^x

Step-by-step explanation:

Just completed the test and copied the answer directly from the review.

3 0
3 years ago
What is the position<br> number of the term<br> 125 in the sequence<br> f(n) = 2n+3?
spin [16.1K]

Answer:

61st term in the sequence

Step-by-step explanation:

125 = 2n + 3

122 = 2n

n = 61

8 0
2 years ago
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