3 years ago

HELPSolve for x X = A: 1 B: 3 C: 7

Mathematics

1 answer:

OverLord2011 [107]3 years ago

7 0

X equals 7

Hope that helped

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The square of -4a is

Alex

Answer:

16a²

Step-by-step explanation:

(- 4a)²

= - 4a × - 4a

= 16a²

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Challenge A family wants to rent a car to go on vacation. Company A charges $70.50 and

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7+×25

Step-by-step explanation:

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2 years ago

Akar akar persaman 3x^2+x-4=0 adalah

Nimfa-mama [501]

Factor (3x+4)(x-1)=0 so 3x+4=0 3x=-4 x=-4/3 x-1=0 x=1 x=1 and -4/3

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3 years ago

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Solve the quadratic equation by using either numeric or graphic approach x^2 + 2x - 3 = 0

fomenos

Answer:

Step-by-step explanation:

$x 1= \frac{ - b + \sqrt{ {b}^{2} - 4ac} }{2a} \\ x2 = \frac{ - b - \sqrt{ {b}^{2} - 4ac} }{2a} \\ x1 = \frac{ - 2 + \sqrt{ {2}^{2} - 4\times 1 \times ( - 3)} }{2} = 1 \\ x2 = \frac{ - 2 - \sqrt{ {2}^{2} - 4 \times 1 \times ( - 3)} }{2} = - 3$

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3 years ago

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The sum of the digits of a three-digit number is 16 .the tens digit is two more than the units digit and the unit digit is tripl

Anit [1.1K]

Answer:

286

Step-by-step explanation:

If the three-digit number is xyz, then:

x + y + z = 16

y = z + 2

z = 3x

Substitute the third equation into the second:

y = 3x + 2

Substitute this and the third equation into the first:

x + (3x + 2) + (3x) = 16

7x + 2 = 16

7x = 14

x = 2

y = 3x + 2 = 8

z = 3x = 6

The number is 286.

4 0

3 years ago