2 years ago

Answer asap!!! PLS HELP.

Mathematics

2 answers:

ruslelena [56]2 years ago

8 0

Answer:

Step-by-step explanation:

its d i think

Charra [1.4K]2 years ago

7 0

Answer:

Step-by-step explanation:

the x is 30

60=2x

x=30

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What is the relationship that exist between two quantities in unit rate

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2 years ago

Read 2 more answers

! + 3 − 5 = 0; by completing the square

mylen [45]

Answer:

x = 1.19258 and x = −4.19258

Step-by-step explanation:

The given equation is :

$x^2+3x-5=0$

Keep x terms on the left and move the constant to the right side by adding it on both sides.

$x^2+3x=5$

Take half of the x term and square it.

$(3\times \dfrac{1}{2})^2=\dfrac{9}{4}$

then add the result to both sides

$x^2+3x+\dfrac{9}{4}=5+\dfrac{9}{4}\\\\(x+\dfrac{3}{2})^2=\dfrac{29}{4}\\\\(x+\dfrac{3}{2})=\sqrt{\dfrac{29}{4}}\\\\x=\dfrac{-3}{2}+\sqrt{\dfrac{29}{4}}\\\\x=\dfrac{-3}{2}-\sqrt{\dfrac{29}{4}}$