Answer:
Radius = 
Step-by-step explanation:
Answer:
x^ -10
Step-by-step explanation:
x^2 * x ^ -12
We know that a^b * a^c = a^ (b+c)
x^2 * x^-12
x^(2+-12)
x^ -10
9.42 Units
Step-by-step explanation:
Since the angle shown is 90 degrees we can deduce that the rest of the arc is 270 degrees therefore we can make the fraction:
270/360; 360 being the total angle measurement of a circle
270/360 simplifies to 3/4
The fraction represents how much of the circle that arc covers
Now we have to find the circumference which would be
2(3.14)r
r = 2 therefore: 2(3.14)2 = 12.56
Now that we have the circumference of the WHOLE circle we multiply it by 3/4 to find out the arc length
Which gives us 9.42
Im srry i cant help with that because K12 will not let me look up answers i bet
Answer:
<u>Add 3 to both sides of the equation</u>
Solution:
The first step is to basically realize that all it's asking you to do is to find a way to make the expression on the left (
) into an expression that is a perfect square. So what number should you add to both sides such that 
can be factored into 
? Well, we can approach it like this:
Since can be turned into 
, and our original form was , we quickly realize that 
. From there, we can easily tell that 
Plug this into our last value 
to get 16. Therefore, if we compare this with our original equation again , we notice that 13 + j = 16.
Thus, j = 3 for the last answer.
Add 3 to both sides of the equation.
Note: With more practice, you will quickly gain enough intuition to notice that 
is very close to 
which can be factored into 
. But for now, the solution above will suffice. I hope this helps :))
