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
Semmy [17]
3 years ago
11

(a)A train completed a journey of 850 kilometres with an average speed of 80 km/hr.

Mathematics
1 answer:
Yanka [14]3 years ago
6 0

Answer:

a. 850/85 = 10.625 hr or 10 hr 37 min 30 sec

b. 6:08 AM

C. Average time is (10.625 + 10.8)/2 = 10.7125

or 10 hour 42 min 45 sec

You might be interested in
How do you get the answer
I am Lyosha [343]
Plug in -2 for a, 3 for b, and -5 for c. Then it'd be | (-3)^2 - 2(-2)(-5) +5 (3) |. Then, multiply everything to get | 9 -20 +15 |. Then, add/subtract to get | 4 |. Finally, take the absolute value and get 4.
5 0
3 years ago
If you vertically compress the absolute value parent function ?? What is the equation of the new function
Bumek [7]

Answer: Choice A -- f(x) = (1/3)*|x|

============================================

The input of a function is x and the output is y = f(x)

To vertically compress a function, we will multiply the y value by some fraction smaller than 1. This is so that the y coordinates are a fraction of what they once were.

In this case, we multiply y by 1/3 so that something that has a y coordinate of y = 81 becomes y = 27 (divide by 3)

So we have y = f(x) become (1/3)*y = (1/3)*f(x) = (1/3)*|x|

4 0
3 years ago
Greg wants to burn a total 600 calories. So far, he has burned 305.4 calories. How many more calories must Greg burn?
ICE Princess25 [194]

Answer:

he must burn 294.6

Step-by-step explanation:

Just minus 305.5 from 600

600

305.5

is equal to 294.6

6 0
3 years ago
Determine whether each integral is convergent or divergent. If it is convergent evaluate it. (a) integral from 1^(infinity) e^(-
AVprozaik [17]

Answer:

a) So, this integral is convergent.

b) So, this integral is divergent.

c) So, this integral is divergent.

Step-by-step explanation:

We calculate the next integrals:

a)

\int_1^{\infty} e^{-2x} dx=\left[-\frac{e^{-2x}}{2}\right]_1^{\infty}\\\\\int_1^{\infty} e^{-2x} dx=-\frac{e^{-\infty}}{2}+\frac{e^{-2}}{2}\\\\\int_1^{\infty} e^{-2x} dx=\frac{e^{-2}}{2}\\

So, this integral is convergent.

b)

\int_1^{2}\frac{dz}{(z-1)^2}=\left[-\frac{1}{z-1}\right]_1^2\\\\\int_1^{2}\frac{dz}{(z-1)^2}=-\frac{1}{1-1}+\frac{1}{2-1}\\\\\int_1^{2}\frac{dz}{(z-1)^2}=-\infty\\

So, this integral is divergent.

c)

\int_1^{\infty} \frac{dx}{\sqrt{x}}=\left[2\sqrt{x}\right]_1^{\infty}\\\\\int_1^{\infty} \frac{dx}{\sqrt{x}}=2\sqrt{\infty}-2\sqrt{1}\\\\\int_1^{\infty} \frac{dx}{\sqrt{x}}=\infty\\

So, this integral is divergent.

4 0
3 years ago
I’ll give brainliest!! please help and answer correctly! plsss answer quick
zaharov [31]

Answer:

the motion of the object will stay the same

Step-by-step explanation:

7 0
3 years ago
Other questions:
  • What is the degree of the polynomial a4 + b3 - 2ab + c?
    14·2 answers
  • Suppose you toss a coin 100 times and get 71 heads and 29 tails. Based on these​ results, what is the probability that the next
    9·1 answer
  • Antonio earns $5 an hour for raking leaves. He also has $35 in savings. Which equation shows the amount of money, m, Antonio wil
    11·1 answer
  • Plzzzzz helpppppp meeeee
    10·2 answers
  • Which of the following is the equation of a line that passes through (-2,1) and (-4,-3)?
    8·1 answer
  • Write an algebraic expression for the phrase the product of g and 4
    6·1 answer
  • Jerome has 1/4 of the groups video games at his house. Mario has 2/5 of the groups video games at his house. What fraction of th
    7·1 answer
  • Move the numbers to the lines to order them from least to greatest.
    14·1 answer
  • Find the area and perimeter of the original planned patio and the new planned patio. MIT HINDI MT Luis decided to make the patio
    5·1 answer
  • A small theater had 6 rows of 27 chairs each. Workers just removed 9 of these chairs. How many chairs are left?
    6·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!