Answer:
(0.392 ; 0.508)
Step-by-step explanation:
Given that :
p = 45% = 0.45
α = 1 - 90% = 0.1
Zα/2 = Z0.01/2 = Z0.05 = 1.645 (from Z standard table).
Using the relation :
p ± Z0.05*sqrt((p(1-p))/n)
p ± 1.645 * sqrt(0.45(0.55)/200)
p ± 1.645 * sqrt(0.0012375)
p ± 1.645 *0.0351781
0.45 - (1.645 * 0.0351781) = 0.3921320255
0.45 + (1.645 * 0.0351781) = 0.5078679745
(0.392 ; 0.508)
Answer:
The function g(x) is defined as g(x)=-2x^2+3x. The value of g(-3) is... All you have to do is substitute the value of x= -3 into the equation, then.
Missing: 4x2 – | Must include:
Step-by-step explanation:
First you need the same denometer Which is 12
9/12+2/12 = 11/12
So 1/12 pie is left
Answer:
There are 4 students and 9 apples
Step-by-step explanation
each student recieves 5 apples so 5 x 4= 20 20+ 7=27
27 can be divided by 3 and you get 9.
each student recieves 2 apples and there are 4 students. 9-8 =1
