Answer:
1 oz of pure gold = $1,320
Step-by-step explanation:
Divide $2640 with 2 to get the price per unit rate.
2640/2 = 1320
$1,320 is your price per unit.
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X^2 - 7x = -12
2x - 7x = -12
-5x = - 12
x = 12/5
or
x = 2.4
Answer:
Step-by-step explanation:
We are required to find a unit vector in the direction of:
Unit Vector,
The Modulus of =
Therefore, the unit vector of the matrix is given as:
Answer:
y-9=(x-1)
Step-by-step explanation: the formula is y-k=m(x-h)
Answer:
The length of a 180° arc of a unit circle is π ≈ 3.14 units.
Step-by-step explanation:
Use your knowledge of the circumference of a circle (the length full around) and the fact that there are 360° in the central angle of a full circle. The distance around is proportional to the angle, so an arc of measure 180° will have a length equal to
... (180°/360°) × circumference = (1/2)×circumference
For a unit circle, the circumference is 2π (= π×diameter = 2π×radius). Half that length is π units.