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
Ludmilka [50]
3 years ago
10

Is someone able to help me with this please I don't understand.

Mathematics
1 answer:
gulaghasi [49]3 years ago
6 0

Answer:

d

Step-by-step explanation: if you pay attention to this answer its for points thanks

You might be interested in
Someone pls pls pls help
Svetllana [295]

Answer:

I=  \frac{1}{ {2}^{t} }

Step-by-step explanation:

Please see the attached picture for the full solution.

7 0
3 years ago
 I have to make two paragraphs each one about  jobs that contain math. The jobs i have to use  are store manager and Game progra
jok3333 [9.3K]
A store manager use numbers by having to check each register. Another way a store manager uses numbers is by counting money. And knowing what food (ex. meats, cereals,eggs,milk) is coming in amg when.
A game programmer uses number with his/her job is by have to code their character to move. Another way a game programmer uses numbers is by having to know how to add codes to there game.
8 0
3 years ago
Read 2 more answers
Evaluate integral _C x ds, where C is
borishaifa [10]

Answer:

a.    \mathbf{36 \sqrt{5}}

b.   \mathbf{ \dfrac{1}{108} [ 145 \sqrt{145} - 1]}}

Step-by-step explanation:

Evaluate integral _C x ds  where C is

a. the straight line segment x = t, y = t/2, from (0, 0) to (12, 6)

i . e

\int  \limits _c \ x  \ ds

where;

x = t   , y = t/2

the derivative of x with respect to t is:

\dfrac{dx}{dt}= 1

the derivative of y with respect to t is:

\dfrac{dy}{dt}= \dfrac{1}{2}

and t varies from 0 to 12.

we all know that:

ds=\sqrt{ (\dfrac{dx}{dt})^2 + ( \dfrac{dy}{dt} )^2}} \  \ dt

∴

\int \limits _c  \ x \ ds = \int \limits ^{12}_{t=0} \ t \ \sqrt{1+(\dfrac{1}{2})^2} \ dt

= \int \limits ^{12}_{0} \  \dfrac{\sqrt{5}}{2}(\dfrac{t^2}{2})  \ dt

= \dfrac{\sqrt{5}}{2} \ \ [\dfrac{t^2}{2}]^{12}_0

= \dfrac{\sqrt{5}}{4}\times 144

= \mathbf{36 \sqrt{5}}

b. the parabolic curve x = t, y = 3t^2, from (0, 0) to (2, 12)

Given that:

x = t  ; y = 3t²

the derivative of  x with respect to t is:

\dfrac{dx}{dt}= 1

the derivative of y with respect to t is:

\dfrac{dy}{dt} = 6t

ds = \sqrt{1+36 \ t^2} \ dt

Hence; the  integral _C x ds is:

\int \limits _c \ x \  ds = \int \limits _0 \ t \ \sqrt{1+36 \ t^2} \  dt

Let consider u to be equal to  1 + 36t²

1 + 36t² = u

Then, the differential of t with respect to u is :

76 tdt = du

tdt = \dfrac{du}{76}

The upper limit of the integral is = 1 + 36× 2² = 1 + 36×4= 145

Thus;

\int \limits _c \ x \  ds = \int \limits _0 \ t \ \sqrt{1+36 \ t^2} \  dt

\mathtt{= \int \limits ^{145}_{0}  \sqrt{u} \  \dfrac{1}{72} \ du}

= \dfrac{1}{72} \times \dfrac{2}{3} \begin {pmatrix} u^{3/2} \end {pmatrix} ^{145}_{1}

\mathtt{= \dfrac{2}{216} [ 145 \sqrt{145} - 1]}

\mathbf{= \dfrac{1}{108} [ 145 \sqrt{145} - 1]}}

5 0
4 years ago
Find the solution for 30 − 5n ≤ 25.<br> 1 n ≤ -1<br> 2 n ≤ -11<br> 3 n ≥ -11<br> 4 n ≥ 1
Anit [1.1K]

Answer:

n>=1

Step-by-step explanation:

30-5n<=25

5n<=30-25

5n<=5

n<=5/5

n<=1

n>=1

3 0
3 years ago
Name the set of numbers to each number that belongs. Natural, Whole, Integers, and Rational numbers.
ryzh [129]
1. rational
2. rational
3. natural, whole, integer, rational
4. integer, rational
5. rational
6. integer, rational
7. rational
8. rational
9. natural,whole,integer,rational
10. rational
6 0
3 years ago
Other questions:
  • What place value was the number rounded<br> .546 to .55
    10·1 answer
  • I don't understand this problem.. please help.. 33 • 32 + 12 ÷ 4
    8·2 answers
  • Zalmon walks three fourhs of a mile in three tenths of an hour. what is his speed in miles per hour?
    14·2 answers
  • Need help ASAP find the value of x
    9·2 answers
  • My wife and I are Racing around a 400m track going opposite directions. I am running at 8 m/s and she has a head start of 50 met
    7·1 answer
  • Use f(x)=5x+2 and g(x)=3-x. what is the value of f(g(-1)) and g(f(-1))?
    10·1 answer
  • Solve l2x + 1l = 10<br><br><br> (That’s not a 12)
    11·1 answer
  • A bag contains 20 candies: 9 pink candies, 8 red candies, and the rest green candies. Without looking, Sarah pulls out a piece o
    13·1 answer
  • Please hurry!!!!!!!!!!!!!!!!!!!!!!!!!!!
    10·1 answer
  • Helpp. Mee\\\..........
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!