Answer:
Step-by-step explanation:
The given expression is : 
We need to simplify the above expression.
We know that, 
or
So, the simplified form of the given expression is 
. Hence, the correct option is (A).
Answer:it will the take 5 mitutes
Step-by-step explanation:
Let x represent the distance at which both companies charge the same amount.
Let y represent the cost of x miles when using company A.
Let z represent the cost of x miles when using company B.
Company A charges a flat fee of $4 plus $2 per mile. It means that
y = 4 + 2x
Company b does not charge a flat fee but charges $2.80 per mile driven. This means that
z = 2.8x
To determine the distance before both plans will be be the same, we would equate both equations. It becomes.
4 + 2x = 2.8x
2.8x - 2x = 4
0.8x = 4
x = 4/0.8 = 5
Answer:
b
Step-by-step explanation:
CR and DS are perpendiculars dropped from AB to PQ , and AB is perpendicular to CR and DS
Answer:
Yes. the relation is a function
Step-by-step explanation:
Here, we want to check if the relation is a function
if a relation is a function, then every x-values (input values) will have one y-value
No two output values (y values) will have a single x value
Looking at the pairs;
It is a function
Although two x values have same y value; 2 and 3 to 8; no two y values have same x value
Hence, the ordered pairs is a function
The colon is the symbol ":". It is used in a number of different ways in mathematics. 1. To denote ratio or odds, as in 2:1 (voiced "two to one").
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