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ollegr [7]
3 years ago
7

Solve the system of equations using substitution. X + y = 13 x - y = 5 Please help

Mathematics
1 answer:
Yuki888 [10]3 years ago
4 0

Answer:

x=9

y=4

Step-by-step explanation:

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Step-by-step explanation:

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((sinB)/1+cosB) + ((1+cosB)/sinB) = 2cscB prove that the equation is an identity
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3 years ago
You lean a 30 foot ladder against your house and it reaches exactly to the top. The ladder makes a 24 degree angle with the grou
zhenek [66]
A right triangle is formed with the ladder as the hypotenuse. Since the angle made by the ladder with with ground is given, we can use trigonometric functions to solve for the height of the house.

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3 years ago
Which numbers on the spinner<br> have less than a 25% probability<br> of being spun?
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1

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4 0
3 years ago
Need help asap plz help dont have many points but ill give yu all i have if u help
Anna71 [15]
Hello!

We can go through the choices and see if they are true

Choice 1
A function has one output for every input

This is not a function because it has -1 as an output for both 4 and -1

This is the answer
------------------------------------------------------------------------------------------------------
Choice 2
The inputs are the x's

We see that the inputs are -1, 0, 3, and 4

This is true
------------------------------------------------------------------------------------------------------
Choice 3
The outputs are the y's

We see the outputs are -2, -1, and 1

This is true
------------------------------------------------------------------------------------------------------
Choice 4
We can follow the lines and see the relations are

(-1, 1), (0, -2), (3, 1), (4, -1)

This is also true
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The only one that was false was the first choice so that is the answer

The answer is A) The diagram represents a function
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Hope this helps!
4 0
3 years ago
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