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
devlian [24]
3 years ago
10

Find the accelartion:

Mathematics
1 answer:
bagirrra123 [75]3 years ago
6 0
A. Man runs (> 2.2 m/s is running) uphill at 6 m/s (???) and decelerates to walking at 2.0 m/s near the top, all in 5 minutes, assuming he ran in a straight line.

Acceleration is (final velocity-initial velocity (m/s) )/time (s)
=(2-6)/(5*60)=-4/300= -0.0133 m/s^2

B. Car goes east for 300 km in 45 min.
Velocity 
=300*1000 m  / (45*60) s  due east
=300000/2700 m/s due east
=111.1 m/s due east
(is it an airplane?  A cesna cruises at 63 m/s  (226 km/h) )
You might be interested in
Factor f(x) = 4x^2 − 5x − 21
jeka94

Answer:

x = -7/4, 3

Step-by-step explanation:

Use quadratic formula

4 0
3 years ago
Pamela is 6 years older than jiri. The sum of their ages is 74. What is jiri’s age?
schepotkina [342]

Answer:

Jiri is 34 years old.

Step-by-step explanation:

The first thing you want to do is subtract 6 from 74, since Pamela is 6 years older than jiri and their ages summarized is 74, this spans the age difference.

Next you want to divide the answer you got earlier (68, from subtracting 6 from 74) and divide it by two since there are two people. The answer is 34, Jiri is 34 years old and Pamela is 40 years old.

5 0
3 years ago
Read 2 more answers
What is the median of 40,33,37,54,41,34,27,39,35
Sauron [17]

Answer:

It's 37

Step-by-step explanation:

The given data set is ;

40,33,37,54,41,34,27,39,35

We arrange the data set in ascending order to obtain;

{27,33,34,35,37,39,40,41,54}

The median is the middle number {37}

8 0
3 years ago
Use set-builder notation to describe the following sets: (a) {1,2,3,4,5,6,7} (b) {1, 10, 100, 1000, 10000} (c) {1,1/2, 1/3, 1/4,
Alja [10]

Answer:

A) The set builder notation is: {n | n∈Z, 1≤n≤7}.

B) The set builder notation is: \{10^x | x=0,1,2,3,4\}

C) The set builder notation is: \{\frac{1}{n} | n\in z\}

D) The set builder notation can be: \{x\ \in R | x=x^3\ and\ x\neq 1\}

Step-by-step explanation:

Consider the provided information,

We need to use set-builder notation to describe the following sets.

(a) {1,2,3,4,5,6,7}

Here, the number are integer starting from 1 to 7.

Thus, the set builder notation is: {n | n∈Z, 1≤n≤7}.

(b) {1, 10, 100, 1000, 10000}

The above set can be written as:

\{1, 10, 100, 1000, 10000\}=\{10^0, 10^1, 10^2, 10^3, 10^4\}

Thus, the set builder notation is: \{10^x | x=0,1,2,3,4\}

(c) {1, 1/2, 1/3, 1/4, 1/5, ...}

Here the numerator is 1 for each term but denominator is natural number.

Thus, the set builder notation is: \{\frac{1}{n} | n\in z\}

(d) {0}

The set builder notation can be: \{x\ \in R | x=x^3\ and\ x\neq 1\}

8 0
3 years ago
What is the slope of the line?
lisabon 2012 [21]

Answer:

In technical terms, the slope of the line is the change in y over the change in x. But I just like to think of it as rise over run. To find the slope of the line, pick two points on the line.

5 0
3 years ago
Read 2 more answers
Other questions:
  • Leila went to see a baseball game. The game started at 11:39AM and ended at 3:15 PM. How long was the game?
    6·1 answer
  • Explain how to get the variable alone in each question k-13=29
    11·2 answers
  • When rounding a number what do u do with the digits to the right of the place you are rounding?
    15·1 answer
  • Please help PLEASE BRAINLY I WILL GIVE U 5 STARS
    11·1 answer
  • Solve for x please show work
    5·1 answer
  • Please answer thiss!!! I need ASAP!
    7·1 answer
  • A trap for insects is in the shape of a triangular prism. The area of the base is 45 in and the height of the
    6·1 answer
  • We made 64 robots. We'll keep 8 of the robots and pack the rest into boxes of 4. How many boxes do we need
    13·1 answer
  • Isosceles triangle PQR in which PQ = PR = 45 mm and PQR = 20° Picture​
    15·1 answer
  • Answer PLS
    14·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!