Answer:
Standard Form. more ... A general term meaning "written down in the way most commonly accepted" It depends on the subject: • For numbers it means "Expanded Form" (such as 125 = 100+20+5), but in Britain it means "Scientific Notation"
Step-by-step explanation:
Answer:
x = -15,46 thì y ≈ 34,46
x = 2,46 thì y ≈ 16,54
Step-by-step explanation:
x + y = 19 => x = 19 - y (1)
thay x = 19 -y vào phương trình 11x + x^2 = 2y ta có:
11 * (19 - y) + (19 - y)^2 =2y
=> 209 - 11y + 361 - 38y + y^2 = 2y
=> y^2 - 51y + 570 = 0
=> y ≈ 34,46 và y≈16,54
thay y ≈ 34,46 vào phương trình (1) có:
x = 19 - 34,46 = -15,46
thay y ≈ 16,54 vào phương trình (1) có:
x = 19 - 16,54 = 2,46
Answer:
ABD is 60⁰. DBC is 30⁰.
Step-by-step explanation:
..
Answer:
2.False
3.True
4.True
5.False
6.False
7.False
Step-by-step explanation: