This is actually called a mapping diagram but the answer is C.
Because the right circle represents the x variable and the left circle is the y variable. So you just follow the arrows. -3 is pointing to 4 so that's a pair or (-3,4)
In order to check whether its greater than or less than, First You have to make denominator value equal of both ratio value. then we have to make denominator value equal i.e. After that you check which ratio Numerator value is greater.
Answer:
0.002M
Step-by-step explanation:
2.7= -log(H^+)
-2.7=log(H^+)
10^-2.7 M=H^+
0.0002M=H^+
Answer:
Step-by-step explanation:
12x+7<-11 and 5x-8 is greater than or equal to 40
To solve
12x+7<-11
Collect like terms
12x=-11-7
12x=-18
Divide through by 12
-18/12
=--3/2 or -1 1/2
5x-8 greater than 40
5x=40+8
5x=48
Divide through by 5
=48/5
9 3/5