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
jenyasd209 [6]
2 years ago
11

The final velocity of an object moving in one dimension is given by the formula v = x + at, where u is the

Mathematics
2 answers:
julia-pushkina [17]2 years ago
8 0

Answer:

Acceleration, a=\dfrac{v-u}{t}

Step-by-step explanation:

The final velocity of an object moving in one dimension is given by the following formula as :

v=u+at...........(1)

where

u is the initial velocity

a is the acceleration

t is the time taken

We need to solve equation (1) to find the value of a. Subtracting u on both sides of the equation :

v-u=at

Now divide both side of the equation by t as :

a=\dfrac{v-u}{t}

So, the correct option is (d).

yKpoI14uk [10]2 years ago
4 0

Answer:

a = (v – u)/t

Step-by-step explanation:

We know,

v = u+ at

v-u=at

(v-u) /t=a

You might be interested in
32​% of college students say they use credit cards because of the rewards program. You randomly select 10 college students and a
Tems11 [23]

Answer:

a) P(X=2)=(10C2)(0.32)^2 (1-0.32)^{10-2}=0.211

b) P(X> 2)=1-P(X\leq 2)=1-[0.0211+0.0995+0.211]=0.668

c) P(2 \leq x \leq 5)=0.211+0.264+0.218+0.123=0.816

Step-by-step explanation:

1) Previous concepts

The binomial distribution is a "DISCRETE probability distribution that summarizes the probability that a value will take one of two independent values under a given set of parameters. The assumptions for the binomial distribution are that there is only one outcome for each trial, each trial has the same probability of success, and each trial is mutually exclusive, or independent of each other".

2) Solution to the problem

Let X the random variable of interest, on this case we now that:

X \sim Binom(n=10, p=0.32)

The probability mass function for the Binomial distribution is given as:

P(X)=(nCx)(p)^x (1-p)^{n-x}

Where (nCx) means combinatory and it's given by this formula:

nCx=\frac{n!}{(n-x)! x!}

Part a

P(X=2)=(10C2)(0.32)^2 (1-0.32)^{10-2}=0.211

Part b

P(X> 2)=1-P(X\leq 2)=1-[P(X=0)+P(X=1)+P(X=2)]

P(X=0)=(10C0)(0.32)^0 (1-0.32)^{10-0}=0.0211  

P(X=1)=(10C1)(0.32)^1 (1-0.32)^{10-1}=0.0995

P(X=2)=(10C2)(0.32)^2 (1-0.32)^{10-2}=0.211

P(X> 2)=1-P(X\leq 2)=1-[0.0211+0.0995+0.211]=0.668

Part c

P(2 \leq x \leq 5)=P(X=2)+P(X=3)+P(X=4)+P(X=5)

P(X=2)=(10C2)(0.32)^2 (1-0.32)^{10-2}=0.211

P(X=3)=(10C3)(0.32)^3 (1-0.32)^{10-3}=0.264

P(X=4)=(10C4)(0.32)^4 (1-0.32)^{10-4}=0.218

P(X=5)=(10C5)(0.32)^5 (1-0.32)^{10-5}=0.123

P(2 \leq x \leq 5)=0.211+0.264+0.218+0.123=0.816

6 0
3 years ago
Exercice 2: Un remorqueur tire un bateau à la vitesse de 10 noeuds. La tension du câble est de 2500N, Le câble est parallèle à l
Elza [17]

Répondre:

1 285 watts

Explication étape par étape:

La puissance est exprimée selon la formule;

power = travail effectué / temps

Puissance = Force * (distance / temps)

Depuis Vitesse = distance / temps

Puissance = Force * vitesse

Donné

Force = 2500N

Vitesse (en m / s) = 0,514 m / s

Obligatoire

Puissance

Remplacez la formule donnée;

Puissance = 2500 * 0,514

Puissance = 1,285Watts

Par conséquent, la puissance correspondante requise est de 1285 watts

5 0
3 years ago
Alfonso is 8 years older than Ashley. Five years ago Alfonso was three times as old as Ashley. How old is Ashley now?
Pavel [41]

Answer: 9 years


Step-by-step explanation:

Let the present age of Ashley be x.

Then the present age of Alfonso =x+8

Five years ago,

Ashley's age = x-5

Alfonso's age = x+8-5 = x+3

According to the question,

x+3=3(x-5)\\\Rightarrow\ x+3=3x-15\\\Rightarrow\ 3x-x=3+15\\\Rightarrow\ 2x=18\\\Rightarrow\ x=\frac{18}{2}\\\Rightarrow\ x=9

Hence, the present age of Ashley =9 years

8 0
3 years ago
Read 2 more answers
IM ABOUT TO FAIL HELP PLZ!!!!!!!!
Julli [10]
The difference between -8 F and 14 F is 22 F.
7 0
2 years ago
In a survey 4/12 of the students chose friday as their favorite day of the week and 5/12 chose saturday. What fraction of the st
Tcecarenko [31]
9/12 chose Friday or Saturday. That reduces to 3/4. Which is also 75%. Hope that helps.
4 0
2 years ago
Other questions:
  • How many pairs of whole numbers can you find that have a sum of 12?
    14·1 answer
  • Hi may someone help me out with this please
    15·1 answer
  • Please respond quickly, 15 points up for grabs.
    13·1 answer
  • Kenneth has 2,000$ to invest
    13·1 answer
  • Can you match the teachers comments to the definitions?
    12·2 answers
  • A mirror frame in the shape of an oval is shown below. The ends of the frame form semicircles: (5 points)
    14·1 answer
  • Caca is popo, popo is no caca??
    13·2 answers
  • Can i please get some help asap
    8·1 answer
  • Please hurry I need an answer for this quiz
    5·2 answers
  • A system of equations is graphed on the coordinate plane.
    10·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!