3 years ago

Explain how to form a linear combination to eliminate the variable y for this system 2x-3y=3 5x+2y=17

Mathematics

2 answers:

igomit [66]3 years ago

8 0

Answer: That answer wasnt given in mine tjo

Step-by-step explanation:

Nadusha1986 [10]3 years ago

3 0

Well to be exact the answer is x=3 y=1

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Find the slope given the following information <br> (3,7) and (-4,10)

hram777 [196]

Answer:

m=-3/7

Step-by-step explanation:

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m=10−7/−4−3

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m=−3/7

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1 year ago

What number is 16% of 46? Which equation and solution represents each situation?

3241004551 [841]

Answer:

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3 years ago

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I need help with my homework can anyone help ?

attashe74 [19]

I can help with part b

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3 years ago

Complete the square than convert to vertex form. y=2x^2+8x-9

8_murik_8 [283]

$y=2x^2+8x-9\\D=b^2-4ac\\D=64-4(2)(-9)\\D=64+72 > 0$

There are 2 roots so the only way to complete the square is,

$y=2x^2+8x-9\\y=2[(x^2+4x)]-9\\y=2[(x^2+4x+4)-4]-9\\y=2[(x+2)^2-4]-9\\y=2(x+2)^2-8-9\\y=2(x+2)^2-17$

Just factor 2 out of 2x^2+8x (just ignore the -9) then find the number that will make the terms be able to complete the square.

then complete the square and multiply 2 inside the brackets.

subtraction as you already get the vertex form and know how to complete the square.

Vertex Form: $y=2(x+2)^2-17$

3 0

3 years ago

Determine whether the triangles are congruent. Explain your reasoning .

lapo4ka [179]

Yes because of ASA
Angel MLX =angel JLM
JLM =90
They share a side (included ) so it is ASA

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