A car has an initial velocity of 10 m/s and final velocity of 43 m/s. The time taken
to reach the final velocity was 3 seconds. What is the acceleration of the car?
Hint: Acceleration (in terms of velocity) = (final velocity - initial velocity)/(time) *

Answers

Answer 1

Answer:

160 m/s

Step-by-step explanation:

vi= 10m/s

a= 5om/s*2

t=3 second

vf=?

frist step: find s(distance)

s=vit+1/2 at*2=10m/s x3s +0.5 x50m/s*2 (3s)*2 =30m+225m=255m

second : find vf

s=(vf+vi)/2 xt

vf=2s/t- vi=2(255m)/3s -10 m/s=170 m/s-10m/s=160m/s

Therefore , the final velocity of the car is 160m/s


Related Questions


Ralph painted 1/6 of a wall in 2/3 hour. At this rate, how many hours will it take Ralph to paint the whole wall?

Answers

Answer:

4 hours

Step-by-step explanation:

Let the size of  whole wall be x.

Given that

Ralph painted 1/6 of a wall in 2/3 hours

thus, writing it in mathematical form we have,

time taken to pain 1/6 of x = 2/3 hours

=>time taken to pain x/6 wall = 2/3 hours

since, we have taken size as x so to find time to pain x size of wall ,

we divide both side by 6

=>time taken to pain x/6 * 6 wall = 2/3 *6 hours

=> time taken to pain x wall = 4 hours

Thus, It will take 4 hours to paint whole wall

Use the equation y=3.2x + 5 to fill in the table.

Answers

Answer:

Step-by-step explanation:

Answer:yes

Step-by-step explanation:


Tory and her friend Terrence ride their bikes to school each day. On one particular day, Tory started out 5 minutes before Terrence. Tory rides at a rate of 880 feet per minute and Terrence rides at a rate of 1.056 feet per minut
How long had Tory been riding when Terrence caught up with her?

Answers

Answer:

4:30 minutes im thinking

Step-by-step explanation:

The value is  30 minutes. Any mathematical statement that includes numbers, variables, and an arithmetic operation between them is known as an expression.

What is meant by expression?

Any mathematical statement that includes numbers, variables, and an arithmetic operation between them is known as an expression or algebraic expression. In the expression 4m + 5, for instance, the terms 4m and 5 are separated from the variable m by the arithmetic sign +.

The expression that give us the distance that Tory has ride after t minutes is:

D = 880t

Because Tory rides at 880 feet per minute.

At the same way, the distance that Terrence has ride after t minutes is equal to:

D = 1056(t - 5)

Because Terrence rides at 1056 feet per minute and he starts out 5 minutes after Tory

Now, we need to find t when both expressions are equal, so we can formulate the following equation:

[tex]880t=1056(t-5)[/tex]

So, solving for t, we get:

[tex]880t=1056t - 1056.5[/tex]

[tex]880t=1056t - 5280[/tex]

[tex]880t=1056t =-5280[/tex]

[tex]-176t=-5280[/tex]

[tex]t=-5280/-176[/tex]

[tex]t= 30[/tex]

Therefore the answer is 30 minutes

To learn more about  expression refer to:

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*
Find the area of the following square:
15 ft.

Answers

Answer:

225

Step-by-step explanation:

The formula is a^2.

Where a is the side

So, 15^2

= 15x15

=225

-1/8 - 0.356 find the sum of this equation

Answers

-0.481 :)

Step-by-step explanation:

solve the proportion 20/3 equals something over six piece of correct option 10 23 40 20​

Answers

Answer:

  [4 over x equals 5 over 10]  

Solve for x, so you need to isolate/get x by itself in the equation.

      Multiply x on both sides

      Multiply the inverse of 5/10, which is 10/5, to get rid of the fraction and get x by itself

8 = x

Step-by-step explanation:

Solve for B.
Ax+By=C
What is B equal to?

Answers

Answer:

B=C/y−Ax/y

Step-by-step explanation:

If cos(x)= 3/4 and tan(x), what is cos(2x)?
-3sqroot7/8
-1/8
1/8
3sqroot7/8

Answers

Answer:

The answer is 1/8 or C.

Step-by-step explanation:

I know this is correct because I got it right on edge 2021.

**please mark brainliest!**

.The value of cos(2x) is 1/8

What is Trigonometry?

Trigonometry is a branch of mathematics that studies relationships between the sides and angles of triangles.

Given:

cos x = 3/4

Using identity,

cos 2x = 2 cos^2 (x)-1

=2(3/4*3/4)-1

=2*9/16-1

=9/8-1

=1/8.

Learn more about trigonometry here:

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The highest elevation in the United States is Mt. McKinley in Alaska, which measures 6,194 m above sea level. The lowest elevation in the United States is Death Valley in California, which measures 86 m below sea level. What is the height difference, in meters, between the highest and lowest elevations in the United States?

Answers

Answer:

the difference is 6280 m

Step-by-step explanation:

When Arianna left her house,her cell phone was 45% charged started losing charge at a constant rate. 4 hours after leaving her house, the battery had 15% remaining battery life. Write an equation for B in terms of t representing the charge remaining in Arianna battery as a percentage t hours after Arianna left her house

Answers

Answer:

B = 3.75t

Step-by-step explanation:

Given;

initial charge of Arianna's phone = 45%

the charge remaining in Arianna battery = 15%

If after 4hours of leaving her house, the battery had 15% remaining battery life, then the battery is discharging at the rate of ( 15% / 4hours) 3.75% per hour.

Thus, the charge remaining in Arianna's battery after she left her house is given by;

B = 3.75t

where;

t is time in hours

B is the percentage of charge remaining

stream back door by stray kids

Answers

Answer:

Okay

Step-by-step explanation:

Answer:

Okay Stay. I will stream it. Nice to meet you. I am Nancy.

20r + 11r + –19r − –4 = –20

Answers

Answer:

r=-2

Step-by-step explanation:

First, you need to combine like terms so now you have 12r-(-4)=-20. Then you have to subtract -4 to -20 which equals -24 so now you have 12r=-24. Finally, you divide 12 from both sides and you get r=-2

Answer:

r = -2

Step-by-step explanation:

20r + 11r - 19r + 4 = -20

12r + 4 = -20

subtract 4 from both sides of the equation

12r + 4 - 4 = -20 - 4

12r = -24

divide both sides by 12

12r/12 = -24/12

r = -2

answer for brainliest
pic below
correct answers only

Answers

a- 2/7
b-3/4
c- 2/4
d- 0/4

What is 10,000 + 4,000 + 500 + 8 in standard form?

Answers

Answer:

14,508

I hope this helps!

B=9+ 1/3qa
solve for a

Step by step please!

Answers

Answer:

[tex]a=\frac{3(B-9)}{q}[/tex]

Step-by-step explanation:

Step 1: Write equation

[tex]B=9+\frac{1}{3} qa[/tex]

Step 2: Solve for a

Subtract 9 on both sides: [tex]B-9=\frac{1}{3} qa[/tex]Multiply 3 on both sides: [tex]3(B-9)=qa[/tex]Divide both sides by q: [tex]\frac{3(B-9)}{q} =a[/tex]Rewrite: [tex]a=\frac{3(B-9)}{q}[/tex]

TV−→− bisects ∠STU, m∠STV=(14x+8)∘, and m∠UTV=(x+2)∘. Find m∠STU

Answers

Answer:

m∠STU is 20°

Step-by-step explanation:

If a ray bisects an angle, then it divides it into two equal angles in measures and the measure of each one is half the measure of this angle

∵ Ray TV bisects ∠STU

→ That means it divides it into two angles STV and UTV

m∠STV = m∠UTV = [tex]\frac{1}{2}[/tex] m∠STU

∵ m∠STV = ([tex]\frac{1}{4}[/tex]x + 8)°

∴ m∠UTV = (x + 2)°

→ Equate them

x + 2 = [tex]\frac{1}{4}[/tex]x + 8

→ Subtract 2 from both sides

∴ x + 2 - 2 =  [tex]\frac{1}{4}[/tex]x + 8 - 2

∴ x =  [tex]\frac{1}{4}[/tex]x + 6

→ Subtract  [tex]\frac{1}{4}[/tex]x from both sides

∴ x -  [tex]\frac{1}{4}[/tex]x =  [tex]\frac{1}{4}[/tex]x -  [tex]\frac{1}{4}[/tex]x + 6

∴  [tex]\frac{3}{4}[/tex]x = 6

→ Divide both sides by  [tex]\frac{3}{4}[/tex] to find x

x = 8

→ Substitute the value of x in the measure of any given angle

m∠UTV = 8 + 2 = 10°

∵ m∠UTV =  [tex]\frac{1}{2}[/tex] m∠STU

∴ 10° =  [tex]\frac{1}{2}[/tex] m∠STU

→ Multiply both sides by 2

∴ 20° = m∠STU

The measure of angle STU is 20°

NEED HELP ASAP WILL GIVE BRAINLY IF CORRECT PLEASE HELP 20 POINTS out

Answers

-15x -8y=-27 Thas the answer

Answer:

It would be -27

Step-by-step explanation:

Math

The ratio of trucks to cars on a freeway is 5 to 8 if there are 440 carson the freeway how many trucks are there?

Answers

There are 275 trucks!

440/8=55
55x5=275

Hope this helped! Have a nice day :)

Translate point (2, -1) seven units up. Write the new coordinate as an
ordered pair. help pls!

Answers

Answer:

(2,6)

Step-by-step explanation:

Up on a graph is adding to the y-value. (x,y)

x-value = 2

y-value = -1

-1 + 7 = 6

(2,6)

Hope this Helps! :)

Have any questions? Ask below in the comments and I will try my best to answer.

-SGO

he statement “Angles that measure more than 50 degrees are obtuse angles” has a counterexample.

Answers

For example, a 60 degree angle is still acute because the true definition of an obtuse angle is one with more than 90 degrees.

I need to make these into algebraic expressions or equations:5 less than the product of 10 and c, 14 more than 6 times t, the sum of x and y is 18, A number minus 12 is 17

Answers

Answer:  more than y :    

                     y + 6

3 times a number:

x ← a number    

                          3x

5 less than the product of 10 and c :

10c   ← the product of 10 and c

                                        10c - 5

14 more than 6 times t :

6t  ← six times t

                       6t + 14

The sum of x and y is 18:

x+y    ← the sum of x and y

                                 x + y = 18

A number minus 12 is y:

x - a number

                  x - 12 = y              

Answer:

See below

Step-by-step explanation:

Here is translation for you

5 less than the product of 10 and c

-5 + 10*c = 10c - 5

14 more than 6 times t

+14 + 6*t = 6t + 14

The sum of x and y is 18

x + y = 18

A number minus 12 is 17

n - 12 = 17

these 2 questions math 9th thanks! will give brainly!!

Answers

Answer:

1)     25+7(n-1)

When the above 'n'(hours) is substituted on the equation, it equals up to the right cost.

2)      Given that n represents the no.of bikes, you just plug it in to the equation below.

250+39(n-1)

= 250+39(20-1)

= 250+39*19

= 250+741

= 991

Write the equation y+4+-1 (x-3) in standard form.

Answers

Answer:

−x+y+7

Step-by-step explanation:

James has 861 feet of rope. There are 14 teams of hikers.
If James gives an equal amount of rope to each team, how much rope will each team receive?

Answers

Answer:

61.5 Feet of Rope

Step-by-step explanation:

Divide the rope length, 861 feet, by 14 people.

30,688 to the nearest ten thousand is
.
548 to the nearest hundred is

Answers

3,456.073084 is the answer :)

(-3x2 + 5x - 2) - 2(x2 - 2x - 1)
If the expression above is rewritten in the form
ar2+bx+c, where a, b, and c are constants, what is
the value of b ?

Answers

Answer:

(-3x²+5x-2)-2(x²-2x-1)=

-3x²+5x-2-2x²+4x+2=

-5x²+9x, so b, the coefficient of the x term, is 9.

(a=-5 and c=0)

answered Sep 9, 2019 by Rod Top Rated User (795k points)

Step-by-step explanation:

Value of b will be 9

What is quadratic equation?

In algebra , a quadratic equation is any equation that can be rearranged in standard form as ax^2 + b x + c =0 where  x represent unknown and a, b and c are constants .

using algebraic functions , solving given equation

-3x^2 + 5x -2 -2x^2 + 4x + 2

-5x^2 + 9x +0                                       equation 1

now , comparing simplified  equation 1 with general quadratic equation (ax^2 +b x +c ), we get

a=-5

b=9

c=0

so, value of b = 9

Lets learn more about quadratic equations

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ASAP!!! GOD BLESS u

Answers

Answer:6 and 2

Step-by-step explanation:

Answer:

The answer is 6 by 2

Step-by-step explanation:

The perimiter is the total of the sides. So, you have to find out the values of the sides of the rectangle using the number 16. Its a rectangle, and the are is 12. So, you can find that it is 6 & 2.

Consider only the discriminant, b2-4ac, to determine whether one real-number solution, two different real-number solutions, or two
different imaginary-number solutions exist.
4x² - 12x+9=0
A.One real solution
B.Two different imaginary-number solutions
C.Two different real-number solutions

Answers

Answer:

A. One real solution

Step-by-step explanation:

The discriminant is used to find the number of real solutions to a quadratic equation.

If the discriminant is greater than 0, there are two real solutions.

If the discriminant is equal to 0, there is one real solution.

If the discriminant is less than 0, there are no real solutions.

All quadratic equations have the format:

ax^2+bx+c

Therefore our values for a, b and c are the following:

a = 4

b = -12

c = 9

Therefore the discriminant is:

(-12)^2-4(4)(9)

144-144 = 0

The discriminant is equal to 0, so there is one real solution (Option A).

Hope this helped!

90 is 12% of what number

Answers

Answer:

750

Step-by-step explanation:

Just divide 90 by 0.12 then it gives you 750. If you want to check it you can multiply 750 by 0.12 and it gives you 90. I got 0.12 from 12% since they're the same thing.

A 2-month membership to the gym costs $125. Alex would like to be a member for 1 year (12 months). What is the total amount he will pay for the year?

Answers

Answer:

$750

Step-by-step explanation:

We divide 12 months which is the time Alex would like to be a member by 2 which gives us 6. We know 2 months=$125 so if 2×6=12, $125×6 = A 1 year membership.

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