Answer:

Step-by-step explanation:

we have to move 5 in the other side with a different sign, to get a 2 grade ecuation

now we know
a=2
b=9
c=-5
we have to find delta

and now we have to use the formula to find the root square



I'm pretty sure this doesn't belong in mathematics but this belongs to science. Anyways.. an independent variable is the only variable that is being changed. The dependent variable is what you find out- in other words it is the outcome.
Answer:
40%
Step-by-step explanation:
2cm loss from 5cm.
2 fifths of the water has gone.
2/5 given as 100ths is is calculated by multiplying both top and bottom by 20
2x20 =40
5x20= 100
40/100
or 40%
Answer:

Step-by-step explanation:
Remember that the hundredths place value is the second number after the decimal point and to round that number has to be greater than five in order to round up.


Hundredths place value = 3
Round:


Hope this helps.
X³ = -1000
x = ∛-1000
x = -10
In short, Your Answer would be: -10
Hope this helps!