A train travels 120km to the nearest kilometer for 3.5 hours correct to the 2 significant figures.
Calculate the least speed of the train to 2 decimal places.

Answers

Answer 1

Answer:

Least speed = 33.66 km/h

Step-by-step explanation:

The least distance is 119.5 km, and the most time it took was 3.55 hours.

Therefore the least speed = least distance/most time

= 119.5/3.55 km/h

= 33.66 km/h


Related Questions


Find the direction of the given vector. -6,5

Answers

9514 1404 393

Answer:

  140.2°

Step-by-step explanation:

The direction of vector (x, y) is the angle arctan(y/x). The signs of the components tell you this is a 2nd quadrant angle. The arctan function only gives values in the range -π/2 to +π/2, so 180° must be added for 2nd and 3rd quadrant angles.*

  arctan(5/-6) = 180° -39.8° = 140.2° . . . . CCW from the +x axis

_____

* Spreadsheets and some calculators have an ATAN2(x, y) function that uses the signs of the coordinates to give the result in the correct quadrant.

Helppp will give brainly ASAP PLEASE

Answers

Answer:

A) 2500(1+0.03)4

Step-by-step explanation:

determine the area A(-1,3) , B(-5,3), C (-5,3), D(-1,-2) 1 unit = 1 ft

Answers

Answer:

hi beauty nice to see you baby

Step-by-step explanation:

hehehe

What is the greatest number of right angles a triangle can contain?
#
Choice
A.
1
B.
3
C.
0
D.
2
.

Answers

Answer:

A) 1

Step-by-step explanation:

a triangle has 180° and a right angle has 90°

triangles have 3 angles

2 right angles would make up 180° therefore, it can only contain 1 right angle

Answer:

There can be only 1 right angle(90°) so answer A

Step-by-step explanation:

If a triangle is equal to 180 °

And each right angle is equal to 90°

Then there can be 2 or 3 becouse if it was 2 it would be a full 180° but we still need 1 more corner and if it would be 3 right angles then it would be 270 with is way farther then the capability of a triangle.

In golf shooting par is scored as a 0. A score of 2 below par is called an eagle. Jacobs friend Michelle scored an eagle on each of her first five holes. Explain how you would use addition to find the product of-2 and 5 using the integer tiles and the number line

Answers

Answer:

Kindly check explanation

Step-by-step explanation:

Using the integer tiles :

Drawing 2 tiles each time an eagle is obtained, this gives:

-2 + - 2 + - 2 + - 2 + - 2 = - 10

Using the number line,

Each unit on the number line = - 2

Any time an eagle scored ; take a unit step to the left.

This give ls a unit step 5 times

-2 + - 2 + - 2 + - 2 + - 2 = - 10

Using direct multiplication :

-2 * 5 = - 10 as it means - 2 in 5 places ; similarly, scoring - 2 five times will give - 10

Also note :

Either - 2 * 5 or - 5 * 2 is the same due to commutativity property of multiplication

Explain whether 20/16 is an equivalent ratio to 60/48

Answers

So since 20x3=60 all we have to do is multiply 16 by 3 to find out if it comes out to 48, which in this case it does, so the two ratios are equivalent.

Please help me in maths

Answers

Answer:

below, and I hope that this helps you solve it.

Step-by-step explanation:

So what you would want to do is do this.

10×10= 100 + 5×10= 50 + 3×10=30 + 5×3=15

So now you want to add, so add

100 + 50 + 30 + 15 and that would equal to 195 and now you want to divide 195 ÷ 2 and that would equal to 97.5

Which statements are true? Select the two correct answers.
The square root of a positive number greater than 1 is less than the number.
The square root of a positive number is always less than half of the number itself.
The square root of a positive number less than 1 is less than the number.
The square root of a perfect square is not a whole number.
The square root of a positive number less than 1 is between 0 and 1.​

Answers

Answer:

5.the square root is positive number lessthan 1 is beteween 0 and 1

1.the square root of a positive number greater than 1 is less thsn number

Generate a frequency table for the following data: 3, 12, 25, 2, 3, 6, 17, 17, 15, 13, 20, 12, 21, 18, 19.
Use the ranges listed in the table below:

Range Number of Values Relative Frequency
1 – 5
6 – 10
11 – 15
16 – 20
21 – 25


What is the relative frequency for the range 11 – 15?

Answers

Answer:

The relative frequency for the range 21-25 is 0.13 approximately.

Step-by-step explanation:

plz do tell me if i need to explaine

The frequency table is made and the Relative frequency for the range 11 – 15 is 0.2 .

What is Frequency ?

Frequency is the number of times any event is occurring .

The data set is given

The frequency table under the given interval is

Interval                       Frequency

1 - 5                                     3

6 - 10                                   1

11 - 15                                   4  

16 -20                                  5  

21 - 25                                 2

Relative frequency is given by = Subgroup Frequency /  (  Total Frequency)

Relative frequency for the range 11 – 15  = 4 / 20 = 1/5 = 0.2

Therefore the frequency table is made and the Relative frequency for the range 11 – 15 is 0.2 .

To know more about Frequency

https://brainly.com/question/5102661

#SPJ2

Write the polynomial in standard form.
3x + 1 − 4x3 + 6x6 −2x2

Answers

Answer:

23x+1........ .... .........

What is the missing angle measure?

Answers

Answer:

x = 33

Step-by-step explanation:

The sum of the 3 angles in a triangle = 180°

Subtract the sum of the 2 angles from 180 for x

x = 180 - (90 + 57) = 180 - 147 = 33

5. The owner of a bookstore developed a model for determining the price of rare comic books.
The price, P, of each book should vary directly with the number of people, N, that have
requested the book and inversely to the number of such books in existence, M. If N = 10 people,
M = 10,000 copies, and P = $5, then find P for N = 200 people and M = 100 copies.

Answers

Answer:

$\$ 10, 000 is the answer I think so

Find the circumference and area of the circle. Use 3.14 for it. Round to the nearest hundredth it
7 m
The circumference of the circle is about
The area of the circle is about
m.

Answers

Step-by-step explanation:

hope this helped you :)) !!

Find the perimeter in inches

Answers

Answer:

25.7 in

Step-by-step explanation:

perimeter = 1/2(2)πr + 10 = 15.7 + 10 = 25.7 in

There are 270 cows on a farm.
a) On the farm
number of bulls : number of cows = 1:30
How many bulls are there?

Answers

Answer:

140

Step-by-step explanation:

Put the cows into groups of 30.
There are 9 groups so there must be 9 bulls.

will be giving brainliest to the correct one, no links or account will be reported:)

Answers

Answer:

Step-by-step explanation:

90 + 34 = (l)

(l) = 124

find the surface area of the figure. no links please.

Answers

Answer:

190

Step-by-step explanation:

10x5x2=100

5x3x2=30

3x10x2=60

100+30+60=190

Help me out guysss!!

Answers

Answer: the other silds are the same

Step-by-step explanation:

finding tenth is not necessary so

Step-by-step explanation:

solution,

given length = 3 m

breath = 10 m

and

height=6 m

Volume=l×b×h

3×10×6

180

so the volume is 180m

hope it helps you have a good day

please mark me as brain list

if the volume of a cube is 1728cm^3 find its length of its side​

Answers

Answer:

it's a very easy one and it's answer is 1728

Answer:

[tex]12 \: cm[/tex]

Step-by-step explanation:

[tex]Given, volume \: of \: cube  = 1728 {cm}^{3} [/tex]

[tex]Let \: x \: be \: the \: side \: of \: the \: cube.[/tex]

[tex]Volume \: of \: the \: cube  = {x}^{3} [/tex]

[tex] {x}^{3} = 1728 {cm}^{3} [/tex]

[tex]x = \sqrt[3]{1728} [/tex]

[tex]x = 12 \: cm[/tex]

Hope it is helpful....

4x/8x+8 * x^2+8x+7/8x^3

Answers

Answer: if simplifying [tex]7x38+17x22+8x[/tex]

Step-by-step explanation:

help ASAP no links, please. send linek= 1 report

Answers

the number point B is at is -0.8

Answer:

-0.8

Step-by-step explanation:

An amusement park had 56,437 visitors the first year and 48,319 visitors the second year it was open. What was the total number of visitors for both years?

Answers

Answer:

104,758

Step-by-step explanation:

what's the 12th multiple of 11

Answers

The 12th multiple of 11 is 12×11
This well give you 132
132 , because that would be 12x11

can someone please help me with this, and please only comment if ur sure, Thank you <3

NO LINKS OR YOU WILL BE REPORTED

Answers

exponential

the equation is
y = 12,800 (0.5)^x

James invests some money into an account that pays 4% compounded annually. If the account has $851.66 after 5 years, how much did he originally invest?

Answers

Answer:

the third option, "what number, when added to negative four, is equal to negative five?"

Step-by-step explanation:

"what number, when added to negative four, is equal to negative five?" can be expressed as g + (- 4) = - 5, which is the same as in the equation.

i hope this helps! :D comment if you need any clarification.

Solve x for brainliest thanks and 5 stars

Answers

Answer:

6x-48=4x-10

2x=38

x=19

If you roll the die 60 times, how many twos can you expect to roll?

Answers

Answer:

10

Step-by-step explanation:

Rolling a single six-sided die, you would get two 1/6th of the time because there is one two out of the six sides.

So 60 rolls would be 60*(1/6)=60/6=10

find the cube root of 4096​

Answers

Answer:

16

Step-by-step explanation:

Answer:

16 is the answer

Step-by-step explanation:

What is the answer to this question?

Answers

Answer:

Step-by-step explanation:

a-= 7.2 × 10-8

(scientific notation)

= 7.2e-8

(scientific e notation)

= 72 × 10-9

(engineering notation)

(billionth; prefix nano-(n))

= 0.000000072

(real number)

b-= 6.3 × 10-9

(scientific notation)

= 6.3e-9

(scientific e notation)

= 6.3 × 10-9

(engineering notation)

(billionth; prefix nano- (n))

= 0.0000000063

(real number)

c- = 4.56 × 10-5

(scientific notation)

= 4.56e-5

(scientific e notation)

= 45.6 × 10-6

(engineering notation)

(millionth; prefix micro- (u))

= 0.0000456

(real number)

d- = 7.041 × 10-10

(scientific notation)

= 7.041e-10

(scientific e notation)

= 704.1 × 10-12

(engineering notation)

(trillionth; prefix pico- (p))

= 0.0000000007041

(real number)

PLEASE HURRY!!

What is the vertex of the function f(x)=x^2+12x?

A) (-6, -36)

B) (-6, 0)

C) (6,0)

D) (6, -36)

Answers

Answer:

it's a

Step-by-step explanation:

use desmos, if you can :)

Answer:

it is A) (-6, -36)

Step-by-step explanation:

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