Let me assign n a number: 3 an easy value we can work with. If we substitute it into the equation we get:
3 * (3-1). According to BIDMAS/BODMAS, we must first work out the brackets and then multiple it by the 3.
Do 3-1 = 2, 2*3 = 6 which is an even number. If we try with an even number we also get an even number:
4-1 = 3, 3*4 = 12. Even if we try this with a number like 7, 9 or 10 - we will always get an even integer, this is because, whenever we multiple an even number with an even or odd number - we always get an even number. So when we take away 1 by an even number, and multiple it with an odd number, we get even. Same applies to when we take away an odd number by 1 to get an even number and then times it by an odd number - we always get even.
Answer: 6
Step-by-step explanation:
III + III = IIIIII (6)
Answer:
is the correct answer.
Step-by-step explanation:
First of all, let us label the diagram as shown in the attached figure.
OR = 20'
QS = 16'
is the right angled triangle that we get.


From the given figure symmetry, we can clearly see that:
Side OP = OR - QS
OP = 20 - 16 = 4'
Now, let us use trigonometric identity of cosine in
.


Let the distance of ramp, OQ = x'
So, the above ratio becomes:

So, the correct answer is:

Answer:
-1000
Step-by-step explanation:
1. Do the Parenthesis problem first. (PEDMAS/PEMDAS)
You should then have -10^3
2. Solve with the exponent. (-10 x 10 x 10)
You should then get your final answer, which is -1000.
Any Questions/Concerns?
Answer:
x = 12
Step-by-step explanation:
Absolute value is the distance between the number and 0. Since distance cannot be negative, the absolute value of something is always going to be positive. In this equation | x | = 12 since 12 is already a postive number and the distance between 12 and 0 is 12, this means that x is equal to 12.
Hope This Helps :)