Answer:
True.
Step-by-step explanation:
If we have for a sample of size n=25 a sample variance of 400, the standard error can be written as:
This way of calculating the standard error is the same used for estimating the standard deviation of the sample means for samples of size n=25.
Answer:
It invaluatesa to 1
Step-by-step explanation:
sin25 ∘cos65 ∘+cos25 ∘sin65 ∘=sin25
∘ sin(90 ∘−65 ∘)+cos25
∘cos(90 ∘−65 ∘ )
=sin25 ∘
sin25 ∘ +cos25 ∘cos25 ∘
=sin 2 25 ∘+cos 2 25 ∘=1
hope this helped you!
Answer:
D. 6 + 6 + 30 + 40 + 50 = 132
Surface area of triangular prism:
(perimeter of base) × length + base × height
(s₁ + s₂ + s₃)(l) + bh
Here, provided with:
So, the surface area:
Only option D gives 132 as an answer which is equivalent to the area.
Answer:
The slope is -2 because, for every value past on the x-coordinate, the line goes 2 values down.
Step-by-step explanation:
I hope that this helps! :)
