I think The answer would be A
Answer:
Formulae can be searched for confirmation : compounding interest with regular payments
Step-by-step explanation:
Calculations do it by yourself
Answer:
5 pieces of 40 cm
Step-by-step explanation:
A Bar of steel is 340 cm long Issa cuts two 55cm lengths of the bar
He then cuts the rest into as many 40cm lengths as possible
Work out how many 40cm lengths of bar Issa cut.
so
340cm - 55 cm - 55 cm = 230 cm remains
<u>230 cm </u>to cut into 40 cm as many as possible
40 cm
therefore, there are 5 pieces of 40 cm
Answer:
c. x is an even number
Step-by-step explanation:
An open sentence in math means that it uses variables, meaning that it is not known whether or not the mathematical sentence is true or false.
Because x is a variable, and we do not know what it is, the statement "x is an even number" is an open statement.
I hope this helps!
The U and inverted U symbols, ∪ and ∩, are mathematical symbols used to denote union or intersection, respectively. For example, when a rational algebraic equation is graphed, there may be some points where the equation is undefined. Visually, we see it as breaks or discontinuities. We use the ∪ symbol to express union. For example, {-∞,2)∪(4,+∞). That means that the graph passes at all x values except x=3.
The ∩ symbol is used for intersection of two lines, for instance. When equation A and equation B are graphed, they can intersect at points (x,y). It is therefore expressed as: A∩B = (x,y).