You have to dive the x and the Y so R=7
Answer:
volume=0.000064
mass=0.5888kg
Step-by-step explanation:
Answer:
For x^2 + 5x - 14 = 0
x1= -7, x2 = 2
For x^2 + 5x + 6 = 0
x1 = -3, x2 = -2
Step-by-step explanation:
Pls see attached....
Answer:

Step-by-step explanation:
we know that
<u><em>Combinations</em></u> are a way to calculate the total outcomes of an event where order of the outcomes does not matter.
To calculate combinations, we will use the formula

where
n represents the total number of items
r represents the number of items being chosen at a time.
In this problem

substitute

simplify




Answer:
20
Step-by-step explanation:
area = length * breadth
320cm² = length * 16cm
divide both sides by 16cm to isolate length
20cm = length