Answer:
option B
i.e 8u + 4
Step-by-step explanation:
3u+4+5u
= 8u + 4
Answer:
The proportion of these light bulbs that will last less than the advertised time is 18.94% or 0.1894
Step-by-step explanation:
The first thing to do here is to calculate the z-score
Mathematically;
z-score = (x - mean)/SD
= (1500-1550)/57 = -50/57 = -0.88
So the proportion we will need to find is;
P( z < -0.88)
We shall use the standard score table for this and our answer from the table is 0.1894 which is same as 18.94%
Answer:
84
Step-by-step explanation:
first calculate the rectangle (6* 10 = 60) and then add that to the area of the triangles. 1/2(4) * 6= 2 * 6 = 12, and since there are two triangles: 12* 2 = 24, add that to the area of the rectangle and you get 84.
Answer:
the answer would be 12 I think.
Step-by-step explanation:
X^2+6x=7X^2
Answer: x= -7
Step-by-step explanation:
