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galben [10]
3 years ago
13

Who ever is really good at math please contact me!

Mathematics
2 answers:
Alexxx [7]3 years ago
5 0

Answer:

im good at math

Step-by-step explanation:

Inga [223]3 years ago
3 0

Answer:

I am good, but depends on which part

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Can see please help me with the 2 equations (in the picture) find x
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1. x = 2

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Step-by-step explanation:

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Simplify the following expression -12[ 3y - 4x] - 10y
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4 years ago
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Solve the following system of equations by substitution. Show all steps.
Alinara [238K]

Answer:

Given system of equations:

\begin{cases}f(x)=-x^2+2x+3\\g(x)=-2x+3\end{cases}

To solve by substitution, equate the equations and solve for x:

\begin{aligned}f(x) & = g(x)\\\implies -x^2+2x+3 & = -2x+3\\-x^2+4x & = 0\\x^2-4x & = 0\\x(x-4) & = 0\\\implies x & = 0\\\implies x-4 & = 0 \implies x=4\end{aligned}

Therefore, the x-values of the solution are x = 0 and x = 4.

To find the y-values of the solution, substitute the found values of x into the functions:

f(0)=-(0)^2+2(0)+3=3

g(0)=-2(0)+3=3

f(4)=-(4)^2+2(4)+3=-5

g(4)=-2(4)+3=-5

Therefore, the solutions to the given system of equations are:

(0, 3) and (4, -5)

4 0
2 years ago
Sophie says that if the interior angle of a triangle is 65 degrees and the exterior one is 295 degrees. Comment on her thinking
Yuri [45]
Sophie is correct because 295 + 65 = 360 and 360 is the # of degrees in a full circle
5 0
3 years ago
Christopher spends a total of $235.94. He
cluponka [151]

Answer:

He bought 6 sweaters

Step-by-step explanation:

235.94-80.00=155.94

155.94/25.99=6

6 0
3 years ago
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