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MA_775_DIABLO [31]
3 years ago
14

What is the equation of the circle described below. Center (-1, 4), radius = √3

Mathematics
1 answer:
Brums [2.3K]3 years ago
7 0

same problem asked and answered here:


brainly.com/question/3583159





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The enrollment of students in evening classes at a local university decreased by 8% between two recent years. If the total numbe
mars1129 [50]

9514 1404 393

Answer:

  1. 7227
  2. 6649

Step-by-step explanation:

Let x represent the enrollment the first year. Then x(1 -8%) = 0.92x represents the enrollment the second year. The total for the two years is ...

  x + 0.92x = 13,876

  x = 13,876/1.92 = 7227.083 ≈ 7227 . . . . students the first year

  13876 -7227 = 6649 . . . . students the second year

4 0
3 years ago
a sound wave travels through iron at a rate of 5120m/s. at what rate does the sound wave travels in km/h?
Sladkaya [172]
5120 m/s = 18.432<span> kph 

</span>Conversion base : 1 mps = 3.6 kphConversion base : 1 kph = 0.27777777777778 mps<span>
</span>
3 0
3 years ago
A sofa is on sale for 29% off. the sale price is $355 . what is the regular price?
emmasim [6.3K]
355÷(1-29%)
=$500
the regular price is $500
6 0
3 years ago
Solve the inequality.
Gnesinka [82]

Answer:

Step-by-step explanation:

7 0
3 years ago
Simplify (x - square root 7)^2
svetoff [14.1K]

Answer:

x^2 + -2 sqrt(7) x + 7

Step-by-step explanation:

Expand the following:

(x - sqrt(7))^2

(x - sqrt(7)) (x - sqrt(7)) = (x) (x) + (x) (-sqrt(7)) + (-sqrt(7)) (x) + (-sqrt(7)) (-sqrt(7)):

x x - sqrt(7) x - sqrt(7) x - (-sqrt(7) sqrt(7))

(-1)^2 = 1:

x x - sqrt(7) x - sqrt(7) x + (sqrt(7))^2

x x = x^2:

x^2 - sqrt(7) x - sqrt(7) x + sqrt(7)^2

Cancel exponents. (sqrt(7))^2 = 7:

x^2 - sqrt(7) x - sqrt(7) x + 7

Combining like terms, sqrt(7) x (-1) + sqrt(7) x (-1) = -2 sqrt(7) x:

Answer:  x^2 + -2 sqrt(7) x + 7

3 0
3 years ago
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