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Dahasolnce [82]
3 years ago
9

Help please I’m on a timer

Mathematics
1 answer:
iren2701 [21]3 years ago
7 0
All real numbers greater than or equal to -3
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Whats the right answer???
Ipatiy [6.2K]

Answer:

45 21 31

Step-by-step explanation:

6 0
2 years ago
Read 2 more answers
Please solve the question and give correct answer with explanation so that i can understand it​
denis-greek [22]

Answer:

  • Yes

Step-by-step explanation:

Let the speed of the car is c and speed of the plane is p.

<h3>We are given:</h3>

The speed of the plane is 7 times the speed of the car

  • p = 7c

The distance traveled is

  • d = 315 km

The time difference to travel this same distance is 3 hours.

<h3>We know that:</h3>
  • d = ts, where d- distance, t- time, s - speed

Find the time for car and plane and their difference.

<h3>Car</h3>
  • t = d/s = 315/c
<h3 /><h3>Plane</h3>
  • t = d/s = 315/p = 315/(7c) = 35/c
<h3 /><h3>The difference</h3>
  • 315/c - 45/c = 3

<u>Solve it for c:</u>

  • (315 - 45)/c = 3
  • 270/c = 3
  • c = 270/3
  • c = 90 km/h

Now find the speed of plane:

  • p = 7c = 7*90 = 630 km/h

As we see, Jenny is right

6 0
2 years ago
Write the slope -intercept form of the equation of the line passing through the point (3,5) and parallel to the line y=3x+6
quester [9]

Answer:

y = 3x - 4

Step-by-step explanation:

y - 5 = 3 (x - 3)

y -5 = 3x - 9

y = 3x - 4

7 0
3 years ago
A tepee is designed to have a diameter of 10 ft and a volume of 393 ft. At
Citrus2011 [14]

Answer:

15 ft.

Step-by-step explanation:

The tepee is a cone and its volume

= 1/3 pi r^2 h   where r = radius and h = height.

The radius r = 1/2 * 10 = 5 ft.

So we have the equation:

393 = 1/3*3.14* 5^2 * h

h = 393 / (1/3*3.14*25)

=  15.02 ft.

7 0
3 years ago
-7 1 11 10 29<br> 6 3 6 3 6<br> common difference?
Hoochie [10]

9514 1404 393

Answer:

  the listed sequences have no common difference(s)

Step-by-step explanation:

The differences in the first sequence are ...

  8, 10, -1, 19

These values are not equal, so there is no common difference.

__

The differences in the second sequence are ...

  -3, 3, -3, 3

These values are not equal, so there is no common difference.

_____

The difference is the difference between a term value and the one before.

  1 -(-7) = 8

  3 -6 = -3

7 0
3 years ago
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