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
tensa zangetsu [6.8K]
3 years ago
9

Help please anyone ?!

Mathematics
2 answers:
padilas [110]3 years ago
7 0
Go to this link so we can ch at
https://b24-glbn5k.bitrix24.com/?secret=p5l3834l
marin [14]3 years ago
3 0

Answer:

.62

Step-by-step explanation:

first move the decimal 3 places to make it a whole number and now we have 4960, now we divide 4960 by 8 giving us 620, now we move the decimal 3 places back and it gives us the decimal .62.

You might be interested in
NO LINKS OR FILES!
Archy [21]

(a) If the particle's position (measured with some unit) at time <em>t</em> is given by <em>s(t)</em>, where

s(t) = \dfrac{5t}{t^2+11}\,\mathrm{units}

then the velocity at time <em>t</em>, <em>v(t)</em>, is given by the derivative of <em>s(t)</em>,

v(t) = \dfrac{\mathrm ds}{\mathrm dt} = \dfrac{5(t^2+11)-5t(2t)}{(t^2+11)^2} = \boxed{\dfrac{-5t^2+55}{(t^2+11)^2}\,\dfrac{\rm units}{\rm s}}

(b) The velocity after 3 seconds is

v(3) = \dfrac{-5\cdot3^2+55}{(3^2+11)^2} = \dfrac{1}{40}\dfrac{\rm units}{\rm s} = \boxed{0.025\dfrac{\rm units}{\rm s}}

(c) The particle is at rest when its velocity is zero:

\dfrac{-5t^2+55}{(t^2+11)^2} = 0 \implies -5t^2+55 = 0 \implies t^2 = 11 \implies t=\pm\sqrt{11}\,\mathrm s \imples t \approx \boxed{3.317\,\mathrm s}

(d) The particle is moving in the positive direction when its position is increasing, or equivalently when its velocity is positive:

\dfrac{-5t^2+55}{(t^2+11)^2} > 0 \implies -5t^2+55>0 \implies -5t^2>-55 \implies t^2 < 11 \implies |t|

In interval notation, this happens for <em>t</em> in the interval (0, √11) or approximately (0, 3.317) s.

(e) The total distance traveled is given by the definite integral,

\displaystyle \int_0^8 |v(t)|\,\mathrm dt

By definition of absolute value, we have

|v(t)| = \begin{cases}v(t) & \text{if }v(t)\ge0 \\ -v(t) & \text{if }v(t)

In part (d), we've shown that <em>v(t)</em> > 0 when -√11 < <em>t</em> < √11, so we split up the integral at <em>t</em> = √11 as

\displaystyle \int_0^8 |v(t)|\,\mathrm dt = \int_0^{\sqrt{11}}v(t)\,\mathrm dt - \int_{\sqrt{11}}^8 v(t)\,\mathrm dt

and by the fundamental theorem of calculus, since we know <em>v(t)</em> is the derivative of <em>s(t)</em>, this reduces to

s(\sqrt{11})-s(0) - s(8) + s(\sqrt{11)) = 2s(\sqrt{11})-s(0)-s(8) = \dfrac5{\sqrt{11}}-0 - \dfrac8{15} \approx 0.974\,\mathrm{units}

7 0
2 years ago
2 of 2<br> X= 1<br> True<br> False
stepan [7]

Answer:

of means to multiple so it would equal 4 so the answer is false

4 0
3 years ago
Pls I need an answer as quick as possible
brilliants [131]
C. because her distance from home is decreasing
4 0
3 years ago
What is the answer to 71m= Cm
Veseljchak [2.6K]
180 cm. it is that answer because ...

K H D U D C M

71 m times 100 is 180
8 0
3 years ago
Read 2 more answers
12,10,15, 13.18.16.21.19 what comes next .<br><br><br><br><br><br>​
shtirl [24]
The answer is 24. it works like this. you subtract 2 from 12 and get 10. then add 5 to 10 to get 15. then subtract 2 from 15 and get 13. 13+5 is 18. and so on
3 0
3 years ago
Read 2 more answers
Other questions:
  • There is 5/6 of an apple pie left from dinner. Tomorrow, Victor plans to eat 1/6 of the pie that was left. How much of the whole
    9·2 answers
  • In a necklace the ratio of yellow beads to blue beads is 3:1. What percentage of beads are yellow?
    7·2 answers
  • Help me out quickly plz
    13·1 answer
  • PLease Help!!!!
    10·2 answers
  • Solve for x. −5(x−4)=−30
    6·2 answers
  • A rational number is such that when you multiply it by 5/2 and add 2/3 to the product, you get 7/12. What is the number?
    7·1 answer
  • Find the greatest common factor of 24, 64, 108.
    12·1 answer
  • I WILL MARK BRAINLIEST
    8·2 answers
  • Solve 1/3(3.2×1.4)2.8<br><br>Simplify your answer​
    8·1 answer
  • Tina was observing the changing heights of a ball as it bounced over time. She graphed the function on this coordinate grid to s
    11·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!