29/150
This is because she rolled a 6 29 times out of a possible 150 times
1. Expand by distributing terms.
5x times 3 + 5x times -7y
2. Simplify 5x times 3 to 15x.
15x + 5x times -7y
3. Simplify 5x times -7y to -35xy.
15x - 35xy
Then you’re done. Hopefully this helps.
Answer:

Step-by-step explanation:
Let X be the number of units produced, and P be the cost of production.
#Given that 
Cost of production can be calculated as:

#Mean of the total cost is calculated as;

Hence, the mean cost of production is $2,000
#Variance of the total cost is calculated as;

Hence, the variancecost of production is $3,600
Answer:
The correct option is B.
Step-by-step explanation:
If polar coordinates of point P are

Where, r is real number and θ is in radian, then all polar coordinates of point P are defined as


The given coordinates are
. So, all polar coordinates of point P are


Therefore correct option is B.
Answer:

Step-by-step explanation:
By Inscribed Angle Theorem, the value of an inscribed angle enclosed by an arc is the half the value of that arc.
⇒ ∠RPQ = 108°/2
⇒ ∠RPQ = 54°