3 years ago

Evaluate the expression for the given value of the Variable

Mathematics

1 answer:

jeka943 years ago

6 0

Answer:

Step-by-step explanation:

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Rewrite by completing the square 2x^2+7x+6=0

Kitty [74]

Answer:

$2x^2+7x+6=0\\\\2(x^2+\frac72x+3)=0\\\\2[x^2+2\cdot x\cdot\frac74+(\frac74)^2-(\frac74)^2+3]=0\\\\2[x^2+2\cdot x\cdot\frac74+(\frac74)^2]-2(\frac74)^2+6=0 \\\\2(x+\frac74)^2-2\cdot\frac{49}{16}+6=0\\\\2(x+\frac74)^2-\frac{49}8+\frac{48}8=0\\\\2(x+\frac74)^2-\frac18=0$

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3 years ago

Someone please help me ! Its past due and Ive been busy.. D:

oee [108]

Answer:

It's okay the first answer is right, $0.15

The store makes $4.20 off the rope

Step-by-step explanation:

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3 years ago

Solve the pair of simultaneous equation 2-4(3x-y)=8(4-y)-39x and 8(4-y)-39x=6(y-x)

andre [41]

Answer:

X = -(146/123) , Y = 21/41

Step-by-step explanation:

2-4(3x-y) = 8(4-y)-39x

2-12x-4y = 32-8y-39x

39x-12x+8y-4y = 32-2

27x+4y = 30

27x+4y-30 = 0

8(4-y) -39x = 6(y-x)

32-8y-39x = 6y-6x

32-8y-6y-39x+6x = 0

-33x-14y+32 = 0

8 0

3 years ago

4. (1) Solve forx: 13 11 3x+16 65

shepuryov [24]

Step-by-step explanation:

13113x+1665
_____________________________
Rewrite 13113 as 9 . 1457

Rewrite 1665 as 9 . 185
= 9 . 1457x + 9 . 185
=9(1457x + 185)

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2 years ago

What’s 53/3 simplified

aleksley [76]

Answer:

53/3 simplified is 17 2/3

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3 years ago

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