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3 years ago

Do anyone have spear krunker account the is level 30

Mathematics

2 answers:

saveliy_v [14]3 years ago

5 0

Answer:

no i do not but thanks for the points

Step-by-step explanation:

romanna [79]3 years ago

4 0

Jkjkkjkjjkkjkkkkjjkjkkhjkhjkgdjd

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The runner has to race for 21km. She has to finish race before 1h 40min. What avarage speed She has to run to gain such goal?

abruzzese [7]

Answer:

The rate of the runner is 3.5 meters per second.

Step-by-step explanation:

To get this answer in meters per second, we first have to convert each of the terms into either meters or seconds. We can do that by multiplying by unit rates.

21 km * 1000 = 21,000 meters

1 hour * 3600 = 3,600 seconds

40 minutes * 60 = 2,400 seconds

Now we divide the meters by the total number of seconds to get the rate.

21,000 meters / (3,600 + 2,400) secs

21,000 meters / 6,000 secs

3.5 meters per second.

7 0

4 years ago

Please see the image and help with this homework problem. thank you!

dimulka [17.4K]

we have the function

$E=\sin \frac{\pi}{14}t$

Part a

For t=7

substitute in the given function

$\begin{gathered} E=\sin \frac{\pi}{14}7 \\ E=1 \end{gathered}$

For t=14

$\begin{gathered} E=\sin \frac{\pi}{14}14 \\ E=0 \end{gathered}$

For t=21

$\begin{gathered} E=\sin \frac{\pi}{14}21 \\ E=-1 \end{gathered}$

For t=28

$\begin{gathered} E=\sin \frac{\pi}{14}28 \\ E=0 \end{gathered}$

For t=35

$\begin{gathered} E=\sin \frac{\pi}{14}35 \\ E=1 \end{gathered}$

Observation: The values of E varies from -1 to 1, including the zero

Part B

Remember that

The Period goes from one peak to the next

Period=2pi/B

B=pi/14

Period=(2pi)/(pi/14)=2pi*14/pi=28

<h2>the period is 28 days</h2>

6 0

1 year ago

Plz solve will give brainliest

Levart [38]

Answer:

thank you sa point

Step-by-step explanation:

yun lang sowwey

6 0

2 years ago

Solve..........20 = 5x + 10y

kvv77 [185]

5x + 10y = 20

-5x + 20 = 10y

-x/2 + 2 = y

y = 2 - x/2

20 - 10y = 5x

4 - 2y = x

x = -2y + 4

Answer:

x = -2y + 4

y = 2 - x/2

6 0

3 years ago

What is the solution to this inequality 3n≥45

Crank

Answer:

n≥15

Step-by-step explanation:

3n≥45

/3 /3

n≥15

6 0

3 years ago