Answer:
0.25
Step-by-step explanation:
0.25-0=0.25
2x+6=1
-5+6=1
-5÷2=-2.5
x=-2.5
Answer:
The x intercepts are -2 ,4
Step-by-step explanation:
f(x)=(x-4)(x+2)
We set the function equal to 0 to determine the x intercepts
0 = (x-4)(x+2)
Using the zero product property
0 = x-4 0 = x+2
x=4 x=-2
The x intercepts are -2 ,4
Answer:
"0.0125" is the right solution.
Step-by-step explanation:
The given values are:
Random sample,
n = 90
Claims,
p = 20%
or,
= 0.20
By using normal approximation, we get
⇒ 
On substituting the values, we get
⇒ 
⇒ 
Now,
The standard deviation will be:
⇒ 
On putting the above given values, we get
⇒ 
⇒ 
⇒ 
⇒ 
hence,
By using the continuity correction or the z-table, we get
⇒ 
⇒ 
⇒ 
From table,
⇒ 