Answer:
5
Step-by-step explanation:
thanks for the points
Answer:
(4,8)
x=4
y=8
Step-by-step explanation:
x is the first number
y is the second number
x+y=12
x-y= -4
Let's add y and 4 to the second equation to get y by itself
x+4=y
We can substitute this value in for y in the first equation
x+x+4=12
2x=8
x=4
We can then use x=4 and plug that into any equation
4+y=12
y=8
The answer is (4,8)
Answer:
and 
Step-by-step explanation:
Given :
and 
To find : Evaluate
and
?
Solution :
As
means
belong to the third or fourth quadrant
.
So,
is negative and
is positive in third and negative in fourth.
Using the formula of trigonometric,


Substitute
,





Now using another formula,



Therefore,
and
.
Answer:
here you go
Step-by-step explanation:
40, 40, 40, 41, 42, 42, 43, 44, 44, 44, 45, 46, 46, 48, 50
Answer:
20
Step-by-step explanation:
16 ÷ 80% = 20
80% of 20 is 16