1: Look at the 4, its a lot easier to multiply 5 x 5 rather than 5 x 4, plus if you are estimating, you are going to round either up or down.
2: Multiply 5 x 5 // the answer is 25.
3: Multiply 5 x 4 (the original) // which is 20.
Answer:
4 square root 80^x
Step-by-step explanation:
arccos(-sqrt(2)/2). range of <span>cos − 1 ( x )=<span>[ 0 , π ]
</span></span>= arccos(0.706 )
=45 degrees
hope this helps
Hello!
Let's write this as an equation below.
3(x-2)=-15
First we undo the parentheses.
3x-6=-15
We add 6 to both sides.
3x= -9
We divide both sides by 3.
x= -3
Therefore, our number is -3.
I hope this helps!
