For this you will use a^2+b^2=c^2
So 21 would be your c^2 and 9 your b^2 so now it'll look like this
A^2+9^2=21^2
A^2+81=441
next you move the 81 over so you subtract 81 from both sides and you're left with
A^2=360
after you get the square root so a=18.9
and rounded you're answer would be B. 19 feet
Hope this helped :)
To solve this problem you must apply the proccedure shown below:
1. Apply the Distributive property:
2. Now, you must simplify:
3. Add the like terms:
4. Simplify:
5. Solve for x. Divide -30 by 3:
The answer is: 
Answer:
Persia should measure the length of each flower that she used in creating this flower arrangement and add up all the values to get the total height (i.e., the combined height) of the eight flowers used. Make sure to keep the units consistent all throughout the calculation to avoid any errors. For example, if centimetres are used to measure height of one flower, use centimetres all throughout and not switch to using inches at any point.
Hope that answers the question, have a great day!
Answer:
The smaller number is 20.
Step-by-step explanation: You subtract 50-30 to get 20.
Answer:
32.5sq ft
Step-by-step explanation:
