3 years ago

What is a solution to the following system of equations? x2 + y2 = 13 2x - y = 4

Mathematics

1 answer:

patriot [66]3 years ago

5 0

A solution to the equation is (-3,-2)

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<img src="https://tex.z-dn.net/?f=%5Cfrac%7B%28csc%20x%2B1%29%28csc%20x-1%29%7D%7Bcsc%5E2x%7D%5C%5C" id="TexFormula1" title="\fr

tigry1 [53]

Step-by-step explanation:

$\frac{( \csc x+1)( \csc x-1)}{ \csc ^2x} = \frac{ { \csc }^{2} x - 1}{ \csc^{2} x} \\ = 1 - \sin^{2} x = \cos^{2} x \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \:$

b. Since csc theta = 1/sin theta, we can multiply both sides by sin theta and you will end up with

$\cos^{2} \theta + \sin^{2} \theta = 1$

which is an identity.

7 0

3 years ago

Need help with test asap

zhuklara [117]

Answer:

It's c im taking the same test lol

Step-by-step explanation:

4 0

3 years ago

Read 2 more answers

Can somebody help with this

grandymaker [24]

Consider, pls, this option:
a) h(-x)=-(7x⁷-7x);
b) -h(x)=-(7x⁷-7x);
c. h(-x)=-h(x), yes;
d. this function is odd.

6 0

3 years ago

36= 4 times b raised to the second power

MariettaO [177]

B = 3

3 to the second power is 9, and 4 • 9 = 36.

4 0

3 years ago

What is 9n=1(98-2n) equal to? Id really appreciate if you could answer both though

borishaifa [10]

N=32/3as a fraction alternative form is n=10.6

5 0

2 years ago