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Ivan
3 years ago
8

A rectangular field 50m wide and ym long require 260m of fencing. Find y

Mathematics
1 answer:
marshall27 [118]3 years ago
7 0

Answer:

\fbox{y=80}

Step-by-step explanation:

Let me know if you want the full explanation. Have a great weekend! ❤

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I need help proving this ASAP
Ket [755]

Answer:

See explanation

Step-by-step explanation:

We want to show that:

\tan(x +  \frac{3\pi}{2} )  =  -   \cot \: x

One way is to use the basic double angle formula:

\frac{ \sin(x +  \frac{3\pi}{2} ) }{\cos(x +  \frac{3\pi}{2} )}  =  \frac{ \sin(x)  \cos( \frac{3\pi}{2} )  +   \cos(x)  \sin( \frac{3\pi}{2}) }{\cos(x)  \cos( \frac{3\pi}{2} )   -    \sin(x)  \sin( \frac{3\pi}{2}) }

\frac{ \sin(x +  \frac{3\pi}{2} ) }{\cos(x +  \frac{3\pi}{2} )}  =  \frac{ \sin(x) ( 0)  +   \cos(x) (  - 1) }{\cos(x) (0)   -    \sin(x) (  - 1) }

We simplify further to get:

\frac{ \sin(x +  \frac{3\pi}{2} ) }{\cos(x +  \frac{3\pi}{2} )}  =  \frac{ 0  -   \cos(x) }{0 +    \sin(x) }

We simplify again to get;

\frac{ \sin(x +  \frac{3\pi}{2} ) }{\cos(x +  \frac{3\pi}{2} )}  =  \frac{- \cos(x) }{ \sin(x) }

This finally gives:

\frac{ \sin(x +  \frac{3\pi}{2} ) }{\cos(x +  \frac{3\pi}{2} )}  =  -  \cot(x)

6 0
3 years ago
Can you help me simplify number 1, it has the options below.
algol [13]
The square root and the squared cancel each other out so it would just be 27 to the first power,which is 27
4 0
3 years ago
Determine whether y varies directly with x. If so, find the constant of variation k.
kumpel [21]
Direct variation is y=kx, inverse variation is y=k/x....

-5y=-2x divide both sides by -5

y=2.5x

So this is a direct variation with a constant of 2.5
5 0
3 years ago
Graph f(x)=2x−1 and g(x)=−x+5 on the same coordinate plane.
Stels [109]
The solution is when the two functions meet x=2. The green function is f(x), and the red is g(x).

4 0
3 years ago
Read 2 more answers
(Y = x - 3), (y = -3/5x + 5)
saul85 [17]

Answer:

(5,2)

Step-by-step explanation:

i am unsure of what your question is but if you want the point of intersection of the two lines its (5,2)

7 0
3 years ago
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