3 years ago

ANSWER ASAP ILL MARK BRAINLIEST!!!

Mathematics

2 answers:

KonstantinChe [14]3 years ago

5 0

Answer:

1/4 , -17/4) (0,-4)

Step-by-step explanation:

I used my brain

vlabodo [156]3 years ago

4 0

The vertex is (1/4, 17/4)

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Solve for x: (x^2+2x)+x+2=0

castortr0y [4]

Answer:

$x=-5$

Step-by-step explanation:

$(x^{2} +2x)+x+2=0\\(3x^{2} )+x+2=0\\3x^{2} +x=-2\\9x+x=-2\\10x=-2\\x=-5$

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3 years ago

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A triangle has two sides of length 2 and 18. What is the largest possible whole-number length for the third side?

Snezhnost [94]

Answer:

Step-by-step explanation:

Given 2 sides of a triangle then the third side x is

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2 years ago

Select the equations whose graphs are parallel to the graph of the equation y=23x+5.

iren [92.7K]

Answer:

2x-3y=9 and 4x-6y=30

Step-by-step explanation:

hello :

note y=(2/3)x+5 no y=23x+5

2/3 is the slope....... all lines parallel to this line has same slope.

1) 2x-3y=9 means : 3y = 2x-9 divide by 3 : y=(2/3)x-3..same slope.

2) 4x-6y=30 means : 6y= 4x-30 divide by 6 : y=(4/6)x -30/6

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3 years ago

Find the values of which satisfy the equation. 2 cos (2B+30°) = -√3 in the domain OP ≤B≤360°

PSYCHO15rus [73]

Answer:

60 and 90

Step-by-step explanation:

$2 \cos(2 \beta + 30) = - \sqrt{3}$

$\cos(2 \beta + 30) = - \frac{ \sqrt{3} }{2}$

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First solution.

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Second solution

$2 \beta + 30 = 210$

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$\beta = 90$

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2 years ago

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Answer:

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Step-by-step explanation: 1+1+1+1+1+1+1+1+1=9

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3 years ago