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lisabon 2012 [21]
3 years ago
7

2. An event with a probability of 1 is called certain likely. impossible

Mathematics
1 answer:
Brums [2.3K]3 years ago
7 0
The answer I believe to be is A) Certain :)
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A vehicle is travelling from rest. After 10 seconds its velocity will be 20ms find acceleration?​
Paladinen [302]

Initial velocity (u) = 0m/s

Final velocity (v) = 20m/s

Time (t) = 10 s

Acceleration (a)

= (v - u)/t

= [(20m/s) - (0m/s)]/10s

= (20m/s)/10s

= (20m/s²)/10

=> 2m/s²

8 0
3 years ago
Simplify the rational expression 2X/X and state any values of X where the expression is undefined
Ivahew [28]

Answer:

2 and 0

Step-by-step explanation:

simplification=2x/x=2/1=2

only if the denominator is 0 can afraction be indefined so 0

3 0
3 years ago
3x^2 - 4x = -2<br> Solve
amid [387]

Answer:

x =   \bigg \{\frac{ 2   - \sqrt{2} \: i }{3}, \:  \: \frac{ 2    +  \sqrt{2} \: i }{3} \bigg \}

Step-by-step explanation:

3 {x}^{2}  - 4x =  - 2 \\ 3 {x}^{2}  - 4x + 2 = 0 \\ equating \: it \: with  \\ a {x}^{2}  + bx + c = 0 \\ a = 3 \:  \: b =  - 4 \:  \: c = 2 \\  {b}^{2}  - 4ac \\  =  {( - 4)}^{2}  - 4 \times 3 \times 2 \\  = 16 - 24 \\  =  - 8  \\  \ {b}^{2}  - 4ac < 0  \\  \therefore \: given \: quadratic \: equation \: have \:  \\ imaginary \: solutios. \\  \\ x =  \frac{ - b \pm \sqrt{{b}^{2}  - 4ac } }{2a}  \\ =  \frac{ - ( - 4) \pm \sqrt{ - 8} }{2 \times 3} \\ =  \frac{ 4 \pm 2\sqrt{2} \: i }{2 \times 3}  \\  =  \frac{ 2 \pm \sqrt{2} \: i }{3} \\  \therefore \: x  = \frac{ 2   - \sqrt{2} \: i }{3}  \: or \: x  = \frac{ 2   +  \sqrt{2} \: i }{3} \:  \\  \\ x =   \bigg \{\frac{ 2   - \sqrt{2} \: i }{3}, \:  \: \frac{ 2    +  \sqrt{2} \: i }{3} \bigg \}

7 0
3 years ago
ANSWER ASAP!!! please ;w;
o-na [289]

The answer would be -40 because (-4)*(-2)=8. Then 8*(-5)=-40

7 0
3 years ago
Read 2 more answers
I really need help with 23 through 30
BartSMP [9]

23. 120

24. 62

25. 84

26. 64

27. 121

28. 112

29. 65

30. 78

Brainiest answer please

4 0
3 years ago
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