<h3>
Explanation:</h3>
There is a theorem :
Proof: open the brackets on right side of equality by using distributive property
RHS = a(a+b) - b(a+b)
RHS = 
RHS = 
= LHS
Using the above theorem you can solve every question you asked:
Answer:
500
Step-by-step explanation:
multiple them together
Answer:
Maria can drive 400 miles.
Step-by-step explanation:
30 + 0.15x = 90
0.15x = 60
x = 60/0.15
x = 400
Answer:
Sum of probabilities in a discrete probability distribution is 1.
Step-by-step explanation:
The sum of the probabilities in a probability distribution is always 1.
A probability distribution is a collection of probabilities that defines the likelihood of observing all of the various outcomes of an event or experiment. Based on this definition, a probability distribution has two important properties that are always true:
Each probability in the distribution must be of a value between 0 and 1.
The sum of all the probabilities in the distribution must be equal to 1.
Answer:
A
Step-by-step explanation:
Given
p² + 2p - 8 = 0 ← in standard form
with a = 1, b = 2, c = - 8
Using the quadratic formula to solve for p
p = ( - 2 ± 
/ 2
= ( - 2 ± 
/ 2
= ( - 2 ± 
) / 2
p = 
= 
= - 4
p = 
= 
= 2
