How many seconds is 0.5 minutes

It's 30 seconds

RELATED INFORMATIONS

1. What's a quarter times 0.75
2. Nine out of ten equals 0.75
3. How to solve the equation that two x minus seven equals x plus zero four?
4. 6 x plus 2.8 times 0.5 equals 10.6: equation, process
5. Where is the zero point of equation log3 x + x-3 equal to 0? Where is the zero point of equation log3 x + x-3 equal to 0?
6. 0:4x plus 6:3 equals 10:5. Simple and slightly complicated equation (solve the following equation)
7. 2 & ~ 178; + 1 / (2 & ~ 178; - 1) + 3 & ~ 178; + 1 / (3 & ~ 178; - 1) +... + 100 & ~ 178; + 1 / (100 & ~ 178; - 1) is equal to the solving process
8. (√ 3 + 2) &# 178; how much is it?
9. -What is 4 (a + 3) (A-3) + 3 (A-2) & # 178?
10. What is – 2 = a (1 – 3) & # + 2 a?
11. How much is [- 1 + (- 1 / 3) & # 178; × (- 1) & # 179;] / (1 / 6-1) equal to?
12. Given that a (A-1) - (A & # 178; - b) = 4, find the value of algebraic formula 2 / A & # 178; + B & # 178; - ab
13. Given a & # 178; - AB = - 18, ab-b & # 178; = - 12, the values of the algebraic expressions a & # 178; - B & # 178; and a & # 178; - 2Ab + B & # 178; are obtained
14. If a & # 178; - AB = 10, ab-b & # 178; = - 5, then the algebraic formula A & # 178; - B & # 178=_______ ,a²-2ab+b²=______
15. Given a & # 178; - AB = 26, ab-b & # 178; = 18, find the values of the algebraic expressions a & # 178; - B & # 178; and a & # 178; - 2Ab + B & # 178
16. Given a (A-1) - (A & # 178; - b) = 2, then the value of the algebraic expression ab - (A & # 178; + B & # 178;) △ 2 is Urgent request
17. When x = 1, the value of the algebraic expression ax3-bx + 1 is equal to - 17, then when x = - 1, the value of the algebraic expression ax3-bx + 1 is equal to -______ ．
18. If 3sina + cosa = 0, what is the value of 1 / ((COSA) ^ 2 + sin2a) If 3sina + cosa = 0, then the value of 1 / ((COSA) ^ 2 + sin2a) is————
19. If cosa + 3sina = 0, 2sinacosa cos ^ 2A + 1 is calculated=
20. 3sina + cosa = 0 find 1 / cos square a + 2sinacosa