Answer:
-2 1/6
Step-by-step explanation:
Answer:
4metres
Step-by-step explanation:
Given the height of the trail modeled by the function h(x) = -0.1x^2 - 0.3x +2.8 , where x is the horizontal distance in kilometers
The horizontal distance occurs at the x intercept i.e at h(x) = 0
Substitute
0 = -0.1x^2 - 0.3x +2.8 ,
Multiply through by -10
0 = x^2 + 3x - 28
x^2 + 3x - 28 = 0
Factorize
x^2 + 7x - 4x - 28 = 0
x(x+7) - 4 (x+7) = 0
(x-4)(x+7) = 0
x-4 = 0 and x+7 = 0
x = 4 and -7
Since the danced cannot be negative, hence the horizontal distance of the trail is 4m
7/8 yd -2/3 yd
= 21/24 yd -16/24 yd
= (21 -16)/24 yd
= 5/24 yd . . . . . difference between length and width
_____
This is (5/24)*36 = 7 1/2 inches.
Hope it will help you
Step-by-step explanation:
Answer: 
Step-by-step explanation:
Given :
From rules of probability :
........................... equation *
can be written as 
x 
Also , 
can be written as x 
substituting into equation * , we have
since P(B) = 0.7, then 
so , substituting each values , we have
