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
Aloiza [94]
3 years ago
15

A car starts with a speed of 20km/ hr and accelerates at a rate of 3.4 m/s for 20 seconds. What is the final speed of the car in

km/hr?
Mathematics
1 answer:
Schach [20]3 years ago
5 0

The relevant formula that we can use in this situation is:

v = v0 + at

where v is the final velocity, v0 is the initial velocity = 20 km/hr, a is acceleration at 3.4 m/s^2 and t is time at 20 seconds

First convert v0 to m/s, v0 = 5.56 m/s

v = 5.56 m/s + 3.4 m/s^2 * 20 s

v = 73.56 m/s

Then convert back to km/hr:

<span>v = 264.82 km/hr</span>

You might be interested in
Indicate in standard form the equation of the line through the given points. k(6 4) l(-6 4) with a slope of m=5
liberstina [14]
Set up a point-slope form equation:
y-y1 = m(x-x1)
y-4 = 5(x-6)
y-4 = 5x -30

Standard form is Ax + By = C

bring x & y over to the same side.

y-4 = 5x-30
-5x + y = -26

Hope this helps
8 0
4 years ago
Read 2 more answers
I will mark brainliest just answer right and fast pls<br>attached link​
musickatia [10]

Answer:

9,0

Why?

Another way to identify the domain and range of functions is by using graphs. Because the domain refers to the set of possible input values, the domain of a graph consists of all the input values shown on the x-axis. The range is the set of possible output values, which are shown on the y-axis.

6 0
3 years ago
Select the correct comparison set a set b O A the typical value is greater is set a the spread is greater in set b
salantis [7]

Answer:

(a)

Step-by-step explanation:

Given

See attachment for sets A and B

Required

The true statement about both sets

First, we calculate the typical values (mean) of set A and set B.

This is calculated as:

Mean = \frac{\sum fx}{\sum f}

For A:

A= \frac{0*1+2*1+5*1+6*1+7*1}{1+1+1+1+1}

A= \frac{20}{5}

A =4

For B:

B = \frac{7 * 1 + 8 *1 + 9 * 2 + 10 * 1}{1+1+2+1}

B = \frac{43}{5}

B = 8.6

<em>Here, we can conclude that B has a larger typical value</em>

Next calculate the spread (range) of sets A and B

This is calculated as:

Range = Highest -Least

For A:

A = 7 - 0

A = 7

For B

B=10 - 7

B = 3

<em>Here, we can conclude that A has a larger spread.</em>

<em></em>

<em>Hence, (a) is true</em>

6 0
3 years ago
Which sample fairly represents the population? Check all that apply. measuring the heights of every fiftieth person on the schoo
Minchanka [31]
<span>measuring the heights of every fiftieth person on the school roster to determine the average heights of the boys in the school

wrong as should be boys only

</span><span>calling every third person on the soccer team’s roster to determine how many of the team members have completed their fundraising assignment 

is the ans</span>
5 0
4 years ago
Read 2 more answers
Hank and Lynn are both paying off car loans . • Hank paid $ 2,000 up front when he bought his car , and he pays $ 200 each month
Ymorist [56]

Answer:

c

Step-by-step explanation:

8 0
4 years ago
Other questions:
  • If it is 3:07 and 35 minuets past what time would it be?
    15·2 answers
  • What is the equation of the line whose y-intercept is 3 and slope is 1? A.y = x + 3 B.y = 3x + 1 C.y = x - 3
    10·2 answers
  • Explain how to find the sum of 3/10 + 4/100
    12·2 answers
  • Natalia paid $38.95 for three medium-sized pizzas and a salad. Solve an equation to find the cost of one pizza, p, if Natalia pa
    7·2 answers
  • How to get OYC I don't get what to do
    11·2 answers
  • I will give brainiest to whoever answers correctly !!
    15·1 answer
  • Write an explicit formula for a_na
    7·1 answer
  • I know it seems that alot of people like on here so people do their work but I really need help!!! I have a set of problems that
    15·1 answer
  • Factor-
    13·2 answers
  • Dan lives in Pittsburgh and takes a plane to Miami. When Dan left the house it was -10°. When the plane landed in Miami, Dan rea
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!