Answer:
7.8*10^7
1.0 * 10^4
Now divide 7.8/1.0 and the power goes up to be subtracted
=7.8 * 10^(7-4)
= 7.8 * 10^3
Answer:
50
Step-by-step explanation:
30 + 20 first you add 0 + 0 = 0 now you has 3 + 2 = 5 put them togeter 50
Hey there! :)
Answer:
16 m².
Step-by-step explanation:
Find the surface area by finding the areas of each face:
The base is a square, so use the formula A = s²
A = 2²
A = 4 m².
Find the areas of the congruent triangular lateral sides. Use the formula:
A = 1/2 (bh)
A = 1/2 (2 · 3)
A = 1/2 (6)
A = 3 m².
There are 4 triangular faces, therefore:
3 × 4 = 12 m².
Add up the areas from the triangles and square base:
12 + 4 = 16 m².
Therefore, the surface area of this square pyramid is 16 m².
Answer: 410,000
Step-by-step explanation:
The 6 gets rounded up and that turns the 9 into a 10
Answer:
0.78
Step-by-step explanation:
We have the next probability distribution:
X P(X)
0 0.2
1 0.3
2 0.5
As we can see when we add all the probabilites the result is 1. Now calculating the mean we have:
The standard deviation is:
Then using the data that we have:
Then the standard deviation is 0.78
