Answer:
a = 7
b = 3 1/2
Step-by-step explanation:
if you add the equations together then the 'b' will zero out
6a = 42
a = 7
substitute 7 for 'a' to solve for 'b'
3(7) - 2b = 14
21 - 2b = 14
-2b = -7
b = 7/2 or 3 1/2
Answer:
Step-by-step explanation:
Let X be the number of persons out of 12 who have RH negative blood.
X is binomial since each person is independent of the other to have Rh negative blood.
n =12
a) What is the probability that exactly 5 of those patients will have Rh negative blood?
P(X=5) =
b) What is the probability that at least 3 of them will have Rh negative blood?
=0.6397
c) What are the expected number and standard deviation of the number of these patients with Rh negative blood?
E(X) = np = 
Var(x) = npq = 
Std dev = 
The fraction always converts to a terminating decimal with 16 as the denominator. The dividing operation by 2 always leads to an integer or a terminating decimal. Therefore, a fraction with 16 as the denominator always converts to a terminating decimal because 16 is an exponential number of 2 (16= 2^4)<span>.</span>
Answer:
the value of x is 4/19
Step-by-step explanation:
it is simple math. 4=19x divide 4 by 19