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Deffense [45]
3 years ago
8

已知一个质点做变速直线运动的位移函数 s  3t 2  e2t , t为时 间,则在时刻t  2处的速度和加速度分别为

Mathematics
1 answer:
Natasha2012 [34]3 years ago
6 0

Answer:

can't understand language

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Jonathan has a bag that co rains exactly one red marble (r), one yellow marble (y) and one green marble (g). He chooses a marble
liraira [26]

Answer: The first outcome shall be 0.33 or 33%.

The second outcome would be 0.5 or 50%

Step-by-step explanation: The bag contains exactly one yellow, one red and one green marble. So when he draws the first marble the sample space shall be the total possible outcomes, which is three, since he has three (3) marbles altogether. When he draws the first time without looking, all three marbles have an equal probability of being picked which can be derived thus;

P(Red) = Number of required possibilities/Number of all possibilities

P(Red) = 1/3

P(Red) = 0.33

Note that there is only one marble of each color which means P(Yellow) and P(Green) is also 0.33 respectively.

After choosing the first marble, without replacing the first one he now chooses another marble. The sample size would have reduced to 2 (since one marble has been drawn). Hence, the outcome when he draw a second marble can be calculated as follows;

P(Red) = Number of required outcomes/Number of possible outcomes

P(Red) = 1/2

P(Red) = 0.5

6 0
4 years ago
Which equation represents the relationship between s and t? A. s=1/7t B. s=7t C. s=t+2 D. s=t+18
xeze [42]

Answer A

Step-by-step explanation: 2+2=22-55= -12-5= -7 then take away the negative then look outside and u should see a tree. Your final answer should be s=1/7t

4 0
3 years ago
Estimate product using rounding 9.7 x 3.3=
Anestetic [448]
9.7*3.3=32.01
32 is the rounded product
8 0
3 years ago
Find the product. 2 · 14 = a0
lbvjy [14]

Answer:

28

Step-by-step explanation:

Because the . Stands for multiplication so 14×2 is 28

4 0
3 years ago
Which of the following expressions is equivalent to 3p^4
olganol [36]
<span>Assuming that this is referring to the same list of options that was posted before with this question, the correct response was the first one, although I forget what it was. </span>
3 0
3 years ago
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