Answer: 100,000,000
Step-by-step explanation:
Answer:
a) 91.4%
b) 37.6%
c) 26.8%
Step-by-step explanation:
For each of these, we'll get a z-score, then use our calculators to find the area using normalcdf (on TI-84, 2nd->VARS->2)
a) z = (9-6.4) / 1.9 = 1.368
normalcdf(-999,1.368) = .914 = 91.4%
b) z = (7-6.4) / 1.9 = .316
normalcdf(.316,999) = .376 = 37.6%
c) normalcdf(.316,1.368) = .268 = 26.8%
Answer:
1. Commutative Property of Multiplication
2. Commutative Property of multiplication
3. Transitive Property of equality
4. Associative Property of Addition
Step-by-step explanation:
1) (15 * 12x) * y = y * (15 * 12x) a*(b*c) = (b*c)*a
2) 22x * (3 * 4y) = 22x * (4y * 3) a*(b*c) = a*(c*b)
3) If x = 4 and 4 = y, then x = y If a=b and b=c then a=c
4) (7x + 15) + 21 = 7x + (15 + 21) (a+b) +c = a+(b+c)
Answer:
Step-by-step explanation:
Since the directrix is , it means the axis of the parabola is parallel to the y-axis.
Also, the vertex is at the origin so the parabola opens upwards.
The equation of a parabola with these properties is of the form , where ,that is the distance between the vertex and the directrix.
.
Since the parabola opens upwards, we choose .
The equation of the parabola now becomes,
Or
See graph