Answer:
20 + 1 + 0.9 + 0.07
Step-by-step explanation:
Given the number 21.97 ;
To wite in expanded form:
Tens ___ Unit ____ tenth ____ hundredth
2_______ 1 _______ 9_________ 7
2 = 20
1 = 1
9 = 0.9
7 = 0.07
Hence,
20 + 1 + 0.9 + 0.07
Answer:
E(X) = 17.4
Step-by-step explanation:
We can calculate the expected value of a random X variable that is discrete (X takes specific values ) as:
E(X) = ∑xp(x) where x are the specific values of x and p(x) the probability associated with this x value.
In this way the expexted value is
E(X) = ∑xp(x) =(16*0.6)+(18*0.3)+(20*0.2) = 8+5.4+4 = 17.4
14.5 cm is the answer i believe
Answer:
The answer is x = 17.
Step-by-step explanation:
-x/4 + 5 = 3/4
-x/4 = 3/4 - 5 = -17/4
-x = -17
x = 17
The angles are supplementary angles. When the sum of the angles are 180 degrees they are called supplementary. Thus, the two angles given in the problem is supplementary since when you add it up it will sum up to 180 degrees.
