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Wewaii [24]
3 years ago
9

Simplify 6 - 3(4 - 3x)

Mathematics
2 answers:
Mademuasel [1]3 years ago
7 0
3x -2 or 9x-6 because these two number are equivalent 

IRISSAK [1]3 years ago
6 0
<span>6 - 3(4 - 3x)
= 6 - 12 + 9x
= 9x - 6

hope it helps</span>
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X^2+y^2+14x+10y=7 <br> center and radius
Sholpan [36]
(x-a)^2+(y-b)^2=r^2\\\\(a;\ b)-the\ coordinates\ of\ the\ center\\r-the\ radius\\\\==================================\\Use:(k+l)^2=k^2+2kl+l^2\ (*)\\==================================

x^2+y^2+14x+10y=7\\\\x^2+14x+y^2+10y=7\\\\x^2+2x\cdot7+y^2+2y\cdot5=7\\\\\underbrace{x^2+2x\cdot7+7^2}_{Use\ (*)}-7^2+\underbrace{y^2+2y\cdot5+5^2}_{Use\ (*)}-5^2=7\\\\(x+7)^2-49+(y+5)^2-25=7\\\\(x+7)^2+(y+5)^2-74=7\ \ \ \ |add\ 74\ to\both\ sides\\\\(x+7)^2+(y+5)^2=81\\\\(x+7)^2+(y+5)^2=9^2

Answer:\\\boxed{(-7;-5)-center;\ 9-radius}
8 0
3 years ago
Read 2 more answers
Five more than three times a number is 197. find the mlnumber
insens350 [35]

Answer:

64

Step-by-step explanation:

If the number is x we have the equation:-

3x + 5 = 197

Subtract 5 from both sides:-

3x = 192

x = 192/3

x = 64

7 0
3 years ago
Which is the interval notation represent the domain?
Kazeer [188]

Answer:

The first choice, (-\infty, 7) \cup (7, \infty).

Step-by-step explanation:

The dashed vertical line is a vertical asymptote. The x-coordinate of all points on this vertical asymptote are equal to 7. In other words, when the x-value of a point on the graph approaches 7, its y-value approaches infinity (or negative infinity.)

Either way, the graph is not defined for x = 7. The point 7 should thus be excluded from the domain of the graph.

The graph is apparently defined for all other x-values. The domain of the function should thus be all real numbers with the exception of x = 7. Here's how to write that in interval notation:

  • The set of all real numbers can be expressed as the interval (-\infty, \infty). Note that infinity \infty (or (- \infty) itself isn't a real number. The round brackets indicate that both endpoints are excluded from the from the interval.
  • The set of all real numbers less than (not equal to) 7 is (-\infty,7 ) (both ends are excluded.) The set of all real numbers greater than (not equal to) 7 is (7, \infty).
  • The set of all real numbers that is not equal to 7 is the union of all real numbers less than 7 and all real numbers greater than 7. The union operator \cup connects two intervals.

In other words, the domain is (-\infty, 7) \cup (7, \infty).

5 0
3 years ago
Original price: $70; Markup: 15%. What is theretail price?
ziro4ka [17]

Answer:

80.50

Step-by-step explanation:

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5 0
3 years ago
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The table below shows the distances and travel times for three different flights departing from Minneapolis.
zhannawk [14.2K]

Answer:

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Step-by-step explanation:

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Minot 2 913

San Francisco 4 2,556

Phoenix average speed = distance travelled / time taken

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Minot average speed = distance travelled / time taken

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San Francisco average speed = distance travelled / time taken

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= 639 km/hour

The fastest average speed flight is San Francisco with an average speed of 639 km/hour

7 0
3 years ago
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