A train travels 71 km in 28 minutes. what is its speed in kilometers per hour? 

Answers

Answer 1
Your answer is 152 1/7.

Related Questions

I am having trouble with this problem

Answers

Answer:

b=330.90 and c=314.97

Step-by-step explanation:

b=245×sin71.2/sin44.5. c=245×sin64.3/sin44.5. you get the 64.3 by subtracting 180_(71.2+44.5)

Mr. Ketchum collets Pokémon cards. He purchases a rare charizard Pokémon card for $525. Research shows this card value will increase by 3.5% each year. Write an equation that determines the value,v,of the card t years after purchase

Answers

Answer:

18.37500

Step-by-step explanation:

Here You Go! Hope It Helps Bud

answer the question below. Type your response in the space provided What is the height of the cylinder in the diagram? Round your answer to the nearest whole V = 904.78 cm³ 6cm​

Answers

Answer:

For this question, we use the formula for the volume of a cylinder.

(formula for vol. of cylinder)

V = π[tex]r^{2}[/tex]h

Where 'π' represents pi(22/7 or 3.14), 'r' represents the radius which is being squared, and 'h' stands for the height.

We utilize the information that we know:

Radius = 6cmVolume = 904.78

Which we then plug into our equation(volume of cylinder formula):

V = π[tex]r^{2}[/tex]h

904.78 = 3.14(6^2) · h

Next solve for the h(height).

904.78 = 3.14(36) · h

904.78 = 113.04 · h

904.78 = 113.04h

/113.04     /113.04

8.00406935598 = h, which we round to 8.

8 centimetres is the height of this cylinder.

HELP!! ASAPP!! (NO LINKS) WILL MARK BRAINLIEST

Identify the trinomial that is NOT a perfect square.


A. 121x^2 + 100x + 25

B. 100x^2 + 60x + 9

C. 25x^2 + 70x + 49

D. 64x^2 + 48x + 9

Answers

ANSWER: C. 25x^2 + 70x + 49

Hope for help po

The table below gives the height h=f(t) in feet of a weight on a spring where t is time in seconds.
t (sec) 0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30
h (feet) 4.8 6.6 7.6 7.8 7.6 6.6 4.8 3 2 1.8 2 3 4.8 6.6 7.6 7.8
what is the period

Answers

Using it's concept, it is found that the period of the function is of 20 seconds.

What is the period of a function?

The period of a function is given by the distance between it's repetitions.

In this problem, the function starts at 0s, with 4.8 ft, then in intervals of 2s, the heights are of 6.6 ft, 7.6 ft, 7.8 ft and so on. The same pattern starts again after 20 seconds.

Hence, the period of the function is of 20 seconds.

More can be learned about the period of a function at https://brainly.com/question/16818112

Find the area of the parallelogram 9.9in 5.5in

Answers

Answer:

54.45 in²

Step-by-step explanation:

Let the base and height be 9.9 inches and 5.5 inches respectively.

Formula;

Area of parallelogram = Base × Height

Substitute the base and the height in the formula:

⇒ Area of parallelogram = Base × Height⇒ Area of parallelogram = 9.9 × 5.5

Evaluate the area of the parallelogram:

⇒ Area of parallelogram = 9.9 in × 5.5 in⇒ Area of parallelogram = 54.45 in²

Answer:

54.45 in²

Step-by-step explanation:

Formula

Area of a parallelogram = base × height

If you turn the parallelogram so that the sides that measure 9.9in are the base, you will see that 5.5in is the height (refer to the attached diagram).  Therefore, we can use the formula with these values to calculate the area.

Given:

base = 9.9 inheight - 5.5 in

⇒ area = 9.9 × 5.5 = 54.45 in²

anyone? giving brainliest

Answers

The answer is A I’m sure of it because 180-77-58 is 45

Box A contains only 20-cent coins and Box B contains only 50-cent coins. The number of coins in Box A is twice the number of coins in Box B. The amount of money in Box B is $1.60 more than the amount of money in Box A. How many 20-cent coins are there in Box A?​

Answers

Answer:

There should be 16, 20 cent coins in the box

Step-by-step explanation:

First we have to do 1.60 x 2 which equals 3.2

Then we divided by 0.20 because the equals the 20 cent coins

We get 16

We can check our work by 0.20 x 16 and that gives us 3.2

I hope this helps!

find the value of each variable in the given parallelogram

Answers

Answer:

x=16, y=26, z=13

Step-by-step explanation:

opposite angles are congruent so (3x+30)=(4x+14)

Solve for x

x=16

adjacent sides are supplementary so insert x in both equations just to make sure it is correct and you get 78

so 3y=78 and 6z=78

solve for y and z

y=26, z=13

What is the surface area of the square pyramid? 30 m 18 m ות 36​

Answers

Answer:

the answer is 5100 im pretty sure.

Step-by-step explanation:

yes

pls help me rn pleaseeeeeeeeeeeeeeee

Answers

I believe it’s negative, positive, zero

A student’s height was 61 inches at the beginning of the year. At the end of the year it was 64 inches. What was his percent increase? Round to the nearest tenth of a percent.

Answers

Answer:

4.9% increase

Step-by-step explanation:

Starts at 61 inches

Ends at 64 inches

64 - 61 = 3 inches increase

percent of 3 to 61

3 / 61

≈ 0.49

= 4.9%

Hassan build a fence around a square yard it took 48 m² of lumber to build a fence the fence is 1.5 m tall what is the area of the yard inside the fence

Answers

area of fence = 64m^2

What is the value of x?

Answers

Answer:

x=20

Step-by-step explanation:

These vertically opposite angles are equal

3x+50=6x-10

50+10=6x-3x

3x=60

x=20

Step-by-step explanation:

3x+50=6x-10(vertically opp angles)

3x-6x=-10-50

-3x=-60

Divide both side by - 3

X=20

how much should i invest today at 11.99% interest compounded quarterly if i want $100000.00 in 10 years

Answers

3000.7907 just write it loooool it’s right easy

can i have some help? subject is stretching and reflecting quadratic functions

Answers

Answer:

(5,5)

(-3,-15)

(6,-12)

(-2,8)

Step-by-step explanation:

Multiply the value of "a" with the coordinates.

#1

(1,1) and a=5

y=ax²

y=5(1)²y=5

Coordinates (1,5)

#2

(5,25) and a=-0.6

So

y=-0.6(5)²y=-0.6(25)y=-15

Coordinates (5,-15)

#3

(-2,4) and a=-3

So

y=-3(-2)²y=-3(4)y=-12

Coordinates (-2,-12)

#4

(-4,16) and a=1/2

So

y=1/2(-4)²y=16/2y=8

Coordinates (-4,8)

a. y=-2x +10, y=-**
y,
5. y=-3x+10, y=-2x
c. y=
y=-*x+10,
-x+10, y=-2x
y=-2x+10, y=-*
c.
х

Answers

Answer:

C

Step-by-step explanation:

find the plot and interpret the point in the equation

what digit 7 sits in this number 714,583​

Answers

Answer:

The hundred thousands place

Step-by-step explanation:

Answer:

The hundred thoudsands place; (700,000)

Step-by-step explanation:

The places of the number are listed below:

Hundred Thousands - 700,000
Ten Thousands - 10000
Thousands - 4000
Hundreds - 500
Tens - 80
Ones - 3

The digit 7 is in the hundred thoudsands place.

hope this helps!



Which algebraic rule describes the translation of ΔDEF to ΔD'E'F'?

Answers

Since the entire triangle is translated we can only refer to one point on the triangle, for example take point F(-1,3)

After Translation:F'(-5,-4)

we subtracted 4 from the x value

we subtracted 7 from the y value

Answer:

(x,y) => (x-4,y-7)

what is the 41st term of 8,17,26

Answers

Answer:

368

Step-by-step explanation:

We can see that 9 is being added to each term.

Thus, we obtain the following rule:

8 + 9(x - 1)

To make this easier, let's simplify the rule.

⇒ 8 + 9(x - 1)⇒ 8 + 9x - 9⇒ 9(x) - 1

Substitute 41 as "x" to obtain the 41st term:

⇒ 9(41) - 1⇒ 368

The value of 41st term of sequence 8, 17, 26 is,

⇒ 368

What is Arithmetic sequence?

An arithmetic sequence is the sequence of numbers where each consecutive numbers have same difference.

Given that;

The sequence is,

⇒ 8, 17, 26.

Now, The common difference is,

⇒ d = 17 - 8 = 9

⇒ d = 26 - 17 = 9

Thus, The sequence is in arithmetic.

Hence, The value of 41st term of sequence 8, 17, 26 is,

⇒ a + (n - 1)d

⇒ 8 + (41 - 1) 9

⇒ 8 + 369 - 9

⇒ 8 + 360

⇒ 368

Thus, The value of 41st term of sequence 8, 17, 26 is,

⇒ 368

Learn more about the Arithmetic sequence visit:

https://brainly.com/question/6561461

#SPJ2

investigue sobre 6sistemas diferentes​

Answers

Answer:

this is broken english

Step-by-step explanation:

ok ok

$300 today is worth MORE than $300 tomorrow.
False or true?

Answers

false if the prices increase tomorrow or true if the prices decrease.

so basically it's always uphill so false

hope it helps...!!!

ANSWER:

false

EXPLANATION:

4. Find the surface area of the triangular prism:
5 ft
5 ft
3 ft
14 ft
8 ft
Shows work please

Answers

Answer:

  276 ft²

Step-by-step explanation:

The total surface area of a prism is the sum of its lateral area and the area of its bases. Here, the bases are two triangles, and the area of the sides is that of three rectangles.

base area

The area of a triangle is given by the formula ...

  A = 1/2bh . . . . where b is the base of the triangle, h is its height

We have two identical triangles, so their total area will be ...

  A = 2(1/2bh) = bh = (8 ft)(3 ft) = 24 ft²

lateral area

The sides of the prism are rectangles, all with the same length: 14 ft. Their total area will be that length multiplied by the total of the rectangle widths. That total is the same as the perimeter of the triangular base:

  P = 5 ft + 5 ft + 8 ft = 18 ft

Then the lateral area is ...

  lateral area = Ph = (18 ft)(14 ft) = 252 ft²

total area

The sum of the base area and lateral area is ...

  (24 ft²) +(252 ft²) = 276 ft² . . . . area of the triangular prism

9-18.
Thui wrote the following inequalities for a problem that she was solving: 2n-1<5 or 2n-1 > -5. Which of the following statements is
true? Homework Help
a. n >-3 or n <3
b. n 2-2 or n <3
C. > -3 or n <3
d. n > -2 or n <3

Answers

Answer:

D is the correct answer

Step-by-step explanation:

2n-1<5= n<3

2n-1>-5= n>-2

If two cars hit head on at 50 mph what is the force of the impact?

Answers

Answer:

100mph

Step-by-step explanation:

8 over 10 devided by 1 over4

Answers

Simplified to 4/5 divided by 1/4
Keep change flip to be 4/5 times 4/1
16/5

What is the value of x in the triangle?
45°
4
х
45°
OA. 4
B. 2
OC. 412
OD. 212

Answers

Answer:

D

Step-by-step explanation:

use the sine or cosine ratio in the right triangle.

using the sine ratio and the exact value

sin45° = [tex]\frac{\sqrt{2} }{2}[/tex] , then

sin45° = [tex]\frac{opposite}{hypotenuse}[/tex] = [tex]\frac{x}{4}[/tex] = [tex]\frac{\sqrt{2} }{2}[/tex] ( cross- multiply )

2x = 4[tex]\sqrt{2}[/tex] ( divide both sides by 2 )

x = 2[tex]\sqrt{2}[/tex]

The value of x is 2√2.

Hence the correct option is D.

Given that a right triangle with acute angles 45° each, and hypotenuse is 4 units,

we need to find the length of the perpendicular,

In a right triangle, the length of the perpendicular (also known as the altitude) can be found using trigonometric ratios.

In this case, since we have an angle of 45°, we can use the sine or cosine function.

Let's use the sine function to find the length of the perpendicular:

sin(45°) = opposite / hypotenuse

sin(45°) = perpendicular / 4

1/√2 = perpendicular / 4

perpendicular = 4/√2

perpendicular = 2√2

Hence the value of x is 2√2.

Learn more about trigonometric ratios click;

https://brainly.com/question/23130410

#SPJ2

Pls helpppp thankssss

Answers

Answer:

D

Step-by-step explanation:

y=5x-2 since the formula is. y=mx+c

find the values of the expression below when x = -4 and y= 2 -3x^2y+ 4x

Answers

Answer:

20720

Step-by-step explanation:

-3x^2y +4x

-3(-4)^2*2 + 4(-4)

= 12^4 -16

20736 - 16

= 20720

I hope this helped!

Answer:

When x = -4 and y = 2, -3x^(2y) + 4x is -784.

Step-by-step explanation:

-3x^(2y) + 4x

Substitute given variables.

-3(-4)^(2(2)) + 4(-4)

Multiply 2 and 2.

-3(-4)^4 + 4(-4)

Multiply -3 and -4.

Raise -4 to the 4th power.

-3(256) + 4(-4)
Multiply -3 and 256.

-768 + 4(-4)

Multiply 4 and -4

-768 + (-16)

Add -768 and -16.

-784

Which type of function best models the data in the
table?
Sound Waves
Wavelength, *
© linear
exponential
o quadratic
inverse variation
Frequenc
(waves
680
0.5
1
340
227
15
DONE
2
170
25
136

Answers

Answer:

inverse variation

Step-by-step explanation:

Other Questions
ECONOMICSWhich development would most likely reduce the standard of living in theUnited States?A. U.S. factories begin producing goods at a much faster rate.B. More Americans begin traveling to different states for work.C. It becomes more difficult for U.S. citizens to get health care.D. The U.S. government decides to return to the gold standard. The teacher of a seventh-grade class flipped a coin 100 times. The students recorded the results in the table shown below:Side of Coin Landed OnHeadsTailsNumber of Flips5446Which of the following best describes the experimental probability of getting heads? The experimental probability is the same as the theoretical probability. The experimental probability is 4% lower than the theoretical probability. The experimental probability is 4% higher than the theoretical probability. The experimental probability cannot be concluded from the data in the table. He would stand upon the corner of an intersection and peer down long moonlit avenues of sidewalk in four directions, deciding which way to go, but really made no difference; he was alone in this world of A.D. 2053, or as good as alone, which statement best explains how the setting affects the meaning of the story? answer is CA. the indecision about which street to take suggests that the main character stuggles internally B the motif of water and waves convets the constant motion of the constant motion of the characters thoughts. C the empty streets suggest that something terrible has happened to human society. D the moonlit avenues convey a feeling of romance or nostalgia for the good times of ones youth. Select ALL the correct answers.What was the final ruling in Obergefell v. Hodges? Please help asap! 20 points for helping and show all work help please fast!!!!!!!! Activity - The Nixon ResignationYour assignment will be to research the details of the case and present arguments for or against President Nixon's impeachment. Had he not resigned, should President Nixon have been impeached and removed from office? Type a paragraph below based on your research presenting your evidence and supporting your conclusions. Rosa earns $120 per week tutoring math. Each week, she puts 36$ from her paycheck in a bank account to save for college. Find the amount Rosa saves out of $100. PLEASE HELP You have$1400, how long would it take to DOUBLE your money in an account that paid 6% interest per year? Round to the nearest year. If Carrey pays for an item that costs $3 with a five-dollar bill, what bills will she receive in change? What is the value of x in the equation 25x2=18? Solid sodium reacts violently with water, producing heat, hydrogen gas, and sodium hydroxide. How many molecules of hydrogen gas are produced when 27.5g of sodium are added to water? Which phrase is characteristic of Muslim art?Question 5 options:oil portraits of Muhammadcarpets with elaborate designs and colorssculptures of the Abbasid caliphsornate jewelry Why are unfunded mandates difficult for states to deal with?a.because timelines are set by the national government and must be metc.because the mandate do not come with a timeline so the states must figure out how to fulfill the mandatesb.because the federal government will punish the states if they fail to meet the mandated.because the federal government always tries to control the states government After World War II, tensions quickly rose between which two nations?France and ItalyUnited States and Soviet UnionSoviet Union and JapanGreat Britain and Germany What effect does ground pollution have on the environment in Washington? It enhances soil health through the use of pesticides. It improves the health of animals that rely on the land. It creates smog and other pollutants over populated cities. It contributes to both air and water pollution. Which of the following are true of fair trade?1. Workers earn a fair wageII. Workplace conditions are goodIII. All production cost is paid forIV. A trade deficit is createdA. I, II, IIIB. II, III, IVC. I only Pls help me answer this questionAnd pls write down the steps if needed Or just explain why High rocky cliffs as well as long sandy beaches can be found in what peninsula? Akira's dog will be having four puppies. Akira performs asimulation by tossing a coin to model whether thesepuppies will be male or female. Let heads (H) = female puppy Let tails (T) = male puppyThe results of the simulation are:1. THHT 6. HHHT2. HTHH 7. HHTT3. HTTH 8. THTH4. TTTH 9. HHTT5. TTTH 10. HTHHWhat is the estimated probability that at least two of the puppies will befemale?