All of that added up is 290 is that what your looking for?
Answer:
B. 96cm^2
Step-by-step explanation:
You know the formula of a triangle is: (base*height)/2
So: 4*8=32
32/2=16cm^2
Since its a parallelogram, you could say that there are two of these triangles, so: 16*2=32cm^2
Now we're left with the part in the middle. The sides are now 8 by 8 because we took away 4 from 12, so: 8*8= 64cm^2
Now you just add all your values together, so: 32+64=96cm^2
Answer:
I only know the first on and it's B
Answer:
36
Step-by-step explanation:
1/2-1/3=?
3/6-2/6=1/6
so lets try 36 since 6x6=36
1/2 of 36 is 18
1/3 of 36 is 12
18-12=6
Answer:
6.27
Step-by-step explanation:
We are to obtain the standard deviation of the given values :
{24, 18, 31,25, 34}
The standard deviation = √(Σ(x - mean)²/ n)
The mean = (ΣX) /n
Using calculator to save computation time :
The standard deviation, s = 6.27 (2 decimal places)
