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a_sh-v [17]
3 years ago
12

Find the value of x when 2(x - 3) + 1 = 3x + 4

Mathematics
2 answers:
GREYUIT [131]3 years ago
8 0
2x-6+1=3x+4
2x-5=3x+4
2x-3x=4+5
-x=9


Black_prince [1.1K]3 years ago
8 0
2x-6+1 =3x+4
2x-5=3x+4
-2x -2x
-5=x+4
-4 -4
-9=x
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A parabola is given by the equation y = x2 + 4x + 4.
notsponge [240]

Answer:

the vertex of the parabola is:(-2,0)

the focus of the parabola is:(-2,\frac{1}{4})

the directrix of the parabola is:y=\frac{-1}{4}

Step-by-step explanation:

we know that for any general equation of the parabola of the type y=ax^{2} +b x+c the vertex of the parabola is given by (h,k)

where h=\frac{-b}{2 a} and k=\frac{4 a c-b^{2} }{4a}

therefore by the given data we have h=-2 and k=0

hence vertex=(-2,0)

the general equation of the parabola of the type 4 a (y-h)=(x-k)^2 ; the parabola symmetric around the y-axis has the focus from the centre i.e. the vertex (h,k) at a distance a as (h,k+a) and the directrix is given by y=k-a

so focus is (-2,\frac{1}{4} )

now the directrix of the parabola is y=\frac{-1}{4}.




3 0
3 years ago
Which statements are true about the place values in the number 88.888?
KIM [24]
I believe A and B are the ones. As for explaining? hmm. I would honestly say that any number to the right of a number is a tenth of the place above it. But then again, it's optional to explain ;P
3 0
3 years ago
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Solve the inequality
Irina18 [472]

Answer:

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4 0
2 years ago
Please help me @marcthetutor please if you cpuld help me as welll anybody please help wuth thorough explaining will mark as brai
Hunter-Best [27]

Answer:

w=3

Step-by-step explanation:

(w+3)x2=4w

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2w-4w=4w-6-4w

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7 0
4 years ago
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Vesnalui [34]

Answer:

30.5 hours

Step-by-step explanation:

444-78=366

366/12=30.5

30.5 x 12= 366

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3 years ago
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