Answer:
a)$21 b)$32 c)$52.5
Step-by-step explanation:
a) 84/4=$21
b) 128/4=$32
c) 210/4=$52.5
Answer:
7. 
Step-by-step explanation:
r^11 x r^8 =
r^11 + 8=
2^19
The value of a from the equation is -63.
Here we have to find the value of a.
Given data:
The equation is = x³ + 8x² + ax -2
The equation is divisible by x -1
So we have:
x -1 = 0
x = 1
Now putting the value in the equation we get the remainder as o because the equation is divisible by x -1.
So;
1³ + 8² + a(1) - 2 = 0
63 + a = 0
a = -63
Therefore we get the value of a as -63.
To know more about the equation refer to the link given below:
brainly.com/question/14107099
#SPJ4
Answer:
Step-by-step explanation:
z value of 14.9 = (16.3 - 14.9) / 2
= 0.7
= .7580
z value of 12.9 = (16.3 - 12.9) / 2
= 1.7
=.9554
Required probability = .9554 - .7580
= .1974
or 19.74 % .
