This can be solved using the formula for t test which is = x - mu over standard deviation divided by the square root of the number of samples. In this case, it is 1185 - 1200 over 70 divided by square root of 100 which give us a value of 2.14 which is equal to .9839 in area. Only rarely, just over one time in a hundred tries of 100 light bulbs, would the average life exceed 1200 hours.
Answer:
3 yd, 5 ft, 8 ft
Step-by-step explanation:
hope that helps
To choose the graph, we must make sure that it satisfies both equations of the system simultaneously.
We have then:
a line includes points 0 comma 4 and 3 comma 5
Verifying:
(0, 4)
(0) - 3 (4) = -12
0-12 = -12
-12 = -12
(3, 5)
2x - y = 1
2 (3) - (5) = 1
6-5 = 1
1 = 1
answer
The graph that matches the system of equations is
a line includes points 0 comma 4 and 3 comma 5
Answer:
Step-by-step explanation:
slope of line through A ,B is
m=(-2-6)/(5-2)=-8/3
slope of line perpendicular to AB Is 3/8
mid-point of AB =((2+5)/2,(6-2)/2)=(7/2,2)
eq. of reqd line is
y-2=3/8(x-7/2)
8y-16=3x-21/2
16y-32=6x-21
16y-6x=-21+32
16y-6x=11
Answer:
D
Step-by-step explanation:
The Savannah has very limited resources because of its environment so plants need to conserve and save as much energy and water as they can
