B. 250 cm3 hope this helps
Make the denominator the same, so multiple 3/10 by 2, which produces 6/20. Take 6/20 and subtract 7/20 because adding a negative number is the same as subtracting a positive number. the Answer is -1/20.
Answer:
d
Step-by-step explanation:
I believe it would be the 3rd one.
Answer:
x²+4=0
Step-by-step explanation:
x²=-4
√x² = √-4
x = 2i
x is an imaginary number