Question:
Select expression that is mathematically equivalent to
a) 
b) 
c) 
d) 
Answer:
Step-by-step explanation:
Given
Required
Determine its equivalent
Start by writing y - z in bracket;
becomes
When - is used as divide, it is equivalent to /
The given expression can then be rewritten as
Hence;
<em /><em> is equivalent to </em><em />
Since -1 is less than or equal to -1 you input it into the first equation.
-3•(-1) -4
3-4
-1
the answer is -1 good luck
-2(b-1)=2(1+7b)
First, distribute; -2b+2=2+14b
Get the variables on one side; -2b+2=2+14b
-14b -14b
Get the constants on one side; -16b+2=2
-2 -2
Divide to find “b”; -16b/-16=0/-16
b=0
Answer:
6+x=24
Step-by-step explanation:
he has 6 more marbles than the blue
the amount of blue marbles is unknown
so let blue marble be x
we know that the total number of marbles is 24
so 6+x=24
Expected value is $20.20
Step-by-step explanation:
Here, we want to calculate the expected value
What we have to do here is to multiply the probability by the payout value; after which we add all values
Thus, we have the payout value as;
1(0.12) + 4(0.2) +6(0.38) + 8(0.2) + 10(0.1)
= 0.12 + 0.8 + 2.28 + 1.6 + 1
