Answer:
cột số 2
Step-by-step explanation:
Answer:
1.5
Step-by-step explanation:
225° bisects Q III
315° bisects Q IV
-270° = 90°
405° = 45° bisects Q I
cos(225) sin(315) + sin( –270) tan(405) = ?
(-½√2)(-½√2) + 1(1) = ?
0.5 + 1 = 1.5
Hey there! I'm happy to help!
Sum means to add. Let's call our number n.
n+15
We multiply this whole thing by 6.
6(n+15)
And this is -42.
6(n+15)=-42
We use distributive property to undo the parentheses.
6n+90=-42
We subtract 90 from both sides.
6n=-132
We divide both sides by 6.
n=-22.
Have a wonderful day! :D
1)
False, it represent range,
2)
False, It is a function
3)
True, c represent range
4)
x=20
C=20*20+5=405
It is a function, for amount we assigne one value.
Answer: b, c
Step-by-step explanation:
Solve for x by simplifying both sides of the equation, then isolating the variable.
