Answer:
Follows are the solution to this question:
Step-by-step explanation:
In the question, the choices are missing that why it correct can be defined as follows:
The correct choice is "What else the equivalent (=) sign indicates on both sides of every equation".
Answer:

Decimal Form:

Step-by-step explanation:

Remove Parentheses: 

Multiply the numbers: 

Divide both sides by: 

Simplify:

Hope I helped. If so, may I get brainliest and a thanks?
Thank you, have a good day! =)
Answer:

Step-by-step explanation:
Given
-- number of rolls
Required
The mean of 2's
The distribution follows binomial distribution where:

In this case:
---- the theoretical probability of rolling 2
So, the mean of 2's is calculated using:



Simplify
or

Let
cos x=7/18
x=arc cos (7/18)-----> using a calculator-------> x=67.11°-----> x=1.17 radians
the answer is
x=67.11° or x=1.17 radians
Hello from MrBillDoesMath!
Answer:
270 in^2
Discussion:
Area of rectangular floor = length * width
= 15 * 18
= 270
Thank you,
MrB