1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
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

You might be interested in
Karl wants to rent a bike for at most $55. He can rent a bike for $7 per hour plus a $9.50 flat fee. Any portion of an hour is c
Papessa [141]
Answer 6 hours
Reason
7x + 9.50 = 55
-9.50. -9.50 subtract from both sides
_____________
7x = 45.50

Divide both sides by 7 to isolate x
X = 6.5
So he can rent for 6 hours (the .5 would be charged as a full hour per the problem)
5 0
1 year ago
PLEASE HELP MEEEEe<br> jhchnthnht
Mars2501 [29]

The equation of the perpendicular bisector of BC with B(-2, 1), and C(4, 2) is y = 7.6 - 6•x

<h3>Which method can be used to find the equation of the perpendicular bisector?</h3>

The slope, <em>m</em>, of the line BC is calculated as follows;

  • m = (2 - 1)/(4 - (-2)) = 1/6

The slope of the perpendicular line to BC is -1/(1/6) = -6

The midpoint of the line BC is found as follows;

\left( - 2 +  \frac{4 - ( - 2)}{2}, \: 1 +  \frac{2 - 1}{2}   \right) = (1,\: 1.5)

The perpendicular bisector is the perpendicular line constructed from the midpoint of BC.

The equation of the perpendicular bisector in point and slope form is therefore;

(y - 1.5) = -6•(x - 1)

y - 1.6 = -6•x + 6

y = -6•x + 6 + 1.6 = 7.6 - 6•x

Which gives;

  • y = 7.6 - 6•x

Learn more about equations of perpendicular lines here:

brainly.com/question/11635157

#SPJ1

6 0
2 years ago
The football program has 14 footballs that weigh 2.57 pounds each. How much do the footballs weigh all together?
Darina [25.2K]

Answer:

35.98 pounds

Step-by-step explanation:

6 0
2 years ago
Read 2 more answers
PLEASE HELP ME PLEASEE
Gelneren [198K]

*☆*――*☆*――*☆*――*☆*――*☆*――*☆*――*☆*――*☆**☆*――*☆*――*☆*――*☆

Answer:  A= 1 b= -8 c= -20

Explanation:

I hope this helped!

<!> Brainliest is appreciated! <!>

- Zack Slocum

*☆*――*☆*――*☆*――*☆*――*☆*――*☆*――*☆*――*☆**☆*――*☆*――*☆*――*☆

7 0
3 years ago
Read 2 more answers
Describe the shape of the data distribution.
Snowcat [4.5K]

Answer: Positively Skewed

Step-by-step explanation: I believe it looks to me like it's positively skewed. If you Google how negatively skewed and positively skewed distributions look like, I think it would help you. But hope this helped! :)

3 0
3 years ago
Read 2 more answers
Other questions:
  • Sarah is training for a bike race . she rides her bikes 5 3/4 miles in 1/3 hour what is Sarah's rate in miles per hour
    8·1 answer
  • Ginger practices daily for the upcoming
    12·1 answer
  • How tall is the tree to the nearest foot
    8·2 answers
  • What Shape is generated when Triangle ABC is rotated around the vertical line through B and C
    14·2 answers
  • Evaluate each expression if x=-2,y=-3and z=5. 2x+3y+z?
    9·1 answer
  • Please help with this question
    11·1 answer
  • Jacob receives $15 per week for his allowance. His parents have asked him to put $5 in his savings account and the rest of his a
    8·1 answer
  • Help me pleaseee geometry’s not my stringsuit:(
    7·1 answer
  • Ken had 5 math quizzes in a month.
    15·2 answers
  • What is the minum of two colors needed?​
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!