Answer:
4^2
Step-by-step explanation:
Order of operations:
Parentheses
Exponents
Multiplication
Division
Addition
Subtraction
Hey there! I'm happy o help!
To get from 60 to -20, you multiply by -1/3. This is our constant of proportionality. Let's see which points below follow this.
-10(-1/3)=3 1/3≠30
30(-1/3)=-10≠-15
-30(-1/3)=10
80(-1/3)=-26 2/3≠-30
Therefore, the correct answer is (-30,10).
Have a wonderful day! :D
Answer:
2.- 100
Step-by-step explanation 1:

↑ As we can see, the only common multiple between 4 and 25 that is given to is 100.
Step-by-step explanation 2:

↑ Another way of knowing the answer is by using a fraction solving method. As we can see, the denominator is once again 100.
Hope it helped,
BiologiaMagister
Answer:
Given the expression:
1.

we know:

then;

Therefore, the value of expression
is -16 i.e negative.
2.

we know:


then;

Therefore, the expression
is 16 i.e Positive.
3.

we know:

then;

Therefore, the expression
is 16 i.e Positive.
I would tell her that her prediction is inaccurate because it isn’t guaranteed that the coin will land on both sides an equal amount of times. It’s possible that the coin could land heads up more often than it could land tails up or the other way around.