18. S=r^2-t^2
S+t^2=r^2
r=sqrt(S+t^2)
20. Tan 18=x/12
x=12×Tan 18
x=3.899036355
x=3.90
I hope this helps.
0.12 rounded to the nearest tenth is 0.10
Answer:
Sum. If the problem asks to add the two fractions, the result is:
Step-by-step explanation:
If you mean to simply state whether this is a sum or a difference, it's a sum.
This is because of the + sign present between the two fractions which indicates it's an addition.
If it was a - it would indicate it was a subtraction problem (or difference)
In order to solve this, we will have to get a common denominator on both fractions. In this case, to do this, we can multiply each denominator to the other fraction, such that:
This can't be simplified further, but can be represented in decimal form as 1.20833.
Good luck!
The equations could have been 54/9, . . 48/8, . . 42/7, . . 24/4. What you divide by multiplied by 6 should equal the number before the division sign.
It will take 49 minutes for 9 people to paint 7 walls