You have to deal with this type of question step by step. Firstly, you can figure out all the unknown values (such as sqrt x-3), by substituting x for 19, as you are trying to figure out f(x) when x=19. Therefore:
x+2=21
sqrt(x-3)=sqrt(19-3)=sqrt 16=4
Now the equation is easier to handle:
3/21 - 4
We can write this as 3/21 - 4/1 , which equals -27/7.
Answer:
$109.71
Step-by-step explanation:
first we find the perimeter
=2(280+200)
=2×480
=960m
now we multiply it by 4 as he wants it 4 times around
960×4
3840
now we find the fencing cost
since 35 per meter we divide it by 35
3840/35
=$<u>109.71</u>
Answer:
y=9 and x=18
Step-by-step explanation:
You know that y+3=12 so 12-3=9
You know that x-3=15 so 15+3=18
Answer:
50
Step-by-step explanation:
the answer is 50 becuz it is
