Answer:
4<C
<10
Step-by-step explanation:
Theorem: Given a triangle with sides A, B and C the sum of the lengths of any two sides of a triangle must be greater than the third side:
1. A+B>C
2. B
+C
>A
3. A+C>B
Thus given two sides of A=3 and B=7 C can be:
7
−3<C
<
7+3
C range
4<C
<10
Answer: (-0.086, 0.026)
Step-by-step explanation:
The confidence interval for the difference of two population proportion is given by :-
Given : Significance level :
Critical value :
Sample size :
The 90% confidence interval for the difference in the population proportions will be :-
Answer:
D
Step-by-step explanation:
Because it is drawn from the top point
Because this is known
Because it is called an exterior height and this only happens when the base is less less than the height.
Answer: 21
Step-by-step explanation:
Let the number be , then ;
of =
that is :
divide through by 5
Therefore : the number is 21
Answer:
Step-by-step explanation:
hello : y= 4x² + 5x + 2
the x-intercepts when y=0 means : 4x² + 5x + 2=0
a=4 b= 5 c=2
∆ = b²- 4ac ∆ = (5)²- 4(4)(2) =25-32 = -7
∆ < 0 no reals solutions no x-intercepts