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lord [1]
2 years ago
6

What is the image of the point (6,9)(6,9) after a rotation of 270^{\circ}270

Mathematics
1 answer:
Vinvika [58]2 years ago
4 0

Answer:

(9, -6)

Step-by-step explanation:

When rotating 270° counterclockwise about the origin,

(x,y) \longrightarrow (y,-x)

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A small plane flew 808 miles in 4 hours with the wind. Then on the return trip flying against the wind it travels only 488 miles
Blababa [14]

Answer:

Step-by-step explanation:

let wind velocity=x

speed of plane=y

(x+y)*4=808

x+y=808/4=202   ...(1)

(y-x)*4=488

y-x=122 ...(2)

add (1) and (2)

2y=202+122=324

y=324/2=162

from (1)

x+162=202

x=202-162=40

wind velocity=40 m/hr

speed of plane=162 m/hr

8 0
2 years ago
A metronome is a device that ticks at adjustable intervals to help keep time when playing music. The metronome on Ryan’s piano h
krek1111 [17]

Answer:

540cm^{3}

Step-by-step explanation:

7 0
2 years ago
If t >0 and t^2-4=0 What is the value of t?
Maslowich
T=2
t^2=4
4-4=0
is that right?
6 0
3 years ago
ASAP WHO EVER ANSWER THIS QUESTION WILL BE MARKED BRANLIEST URGENT
Yuliya22 [10]

Answer:

i think its A. . .

Step-by-step explanation:

6 0
3 years ago
One pump can empty a pool in 4 days, whereas a second pump can empty the pool in 10 days. How long will it take the two pumps, w
gtnhenbr [62]

Answer:

20/7 days (just less than 3 days)

Step-by-step explanation:

Recall that (1 job) = (rate)(time), so time = (1 job) / (rate).

Set up and solve the following equation:

  1 job

------------------------------- = time required for 2 pumps working together

1 job         1 job

---------- + -------------

4 days      10 days

This comes out to:

              1 job

------------------------------------------- = time required

10 job-days      4 job-days

------------------ + -----------------

   40 days           40 days

or:

    1 job

-------------------- = (40/14) days, or 20/7 days (just less than 3 days)

14 job·days

-----------------

   40 days  

7 0
3 years ago
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