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a_sh-v [17]
3 years ago
7

what is the expression, equation, or inequality using x as your variable: The product of a number and its opposite, increased by

seven
Mathematics
1 answer:
olchik [2.2K]3 years ago
7 0
x\cdot (-x)+7
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Please help me with my math
gulaghasi [49]

Answer: The probability of choosing a green marble is \frac{1}{3}.

Step-by-step explanation:

  • 4 + 5 + 3 = 12 marbles <em>total.</em>
  • Since there are 4 green marbles, the probability of choosing one is \frac{4}{12}.
  • \frac{4}{12} simplified is \frac{1}{3}.

7 0
3 years ago
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When do we say information is valuable?​
solmaris [256]
Every piece of information, public or not, has a value to somebody
6 0
3 years ago
During the eclipse on January 26, 2009, the moon's shadow traveled 14,500 kilometers and covered 0.9 percent of the surface area
vfiekz [6]
The area covered by the shadow is given by:
 A = (512,000,000) * (0.9 / 100)
 A = 4,608,000
 Then, since the area is a rectangle we have:
 A = (w) * (l)
 Where,
 w: width
 l: long
 Substituting we have:
 4,608,000 = (w) * (14,500)
 Clearing w we have:
 w = (4,608,000) / (14,500)
 w = 317.7931034
 Round to the nearest kilometer:
 w = 318 Km
 Answer:
 
The width of such a rectangle would be:
 
A: 318km
3 0
4 years ago
7ft = __ inches. Show work
Harrizon [31]

Answer:

Step-by-step explanation:

12 inches is in a foot

10 x 7= 70

2 x 7= 14

70+14=84

6 0
3 years ago
I need this to be simplified
umka2103 [35]

Answer:

\frac{x+2}{3x-1}

Explanation:

→ \frac{(x^2-9)(x+2)}{(3x^2 +8x -3)(x-3)}

→ \frac{\left(x+3\right)\left(x-3\right)\left(x+2\right)}{\left(3x^2+8x-3\right)\left(x-3\right)}

→ \frac{\left(x+3\right)\left(x+2\right)}{3x^2+8x-3}

→ \frac{\left(x+3\right)\left(x+2\right)}{\left(3x-1\right)\left(x+3\right)}

→ \frac{x+2}{3x-1}

8 0
2 years ago
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