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Colt1911 [192]
2 years ago
8

ONLY GODS CAN SOLVE STRAIGHT AWAY: Using the given equation find the missing coordinates of the points and then find the slope o

f the line.
4x−3y=24; A(...; 12), B(6; ...)



Erik took a trip to see his friend Mike who lives 308 miles away. He left his place at 10 AM driving at 70 mph. In 2 hours, his friend Mike left his place driving towards Erik at an average speed of 50 mph. At what time will they meet?
SAT
1 answer:
Yakvenalex [24]2 years ago
5 0

Answer:

By the time Mike left his house at 12:00 noon, Erik had already traveled: 2 x 70 mph =140 miles.

308 - 140 = 168 miles left.

Let the time when they meet =T

70T + 50T =168 miles, solve for T

T =7 / 5 =1.4 hours, or 1 hour and 24 minutes after 12:00 noon.

12 + 1.4 =1 O'clock + 24 minutes, or 24 minutes after 1:00 pm when they will meet.

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An airplane starts at 0 feet. It rose 21,000 feet at takeoff. it then descended 4,329 feet because of clouds. An oncoming plane
sveta [45]

answer

1). Airplane is flying at 14551 feet.

2). Height of the mountain is 4299 feet.

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

1). An airplane starts at the level = 0 feet

It rose to the altitude = 21000 feet

It descends by the height due to clouds = 4329 feet

So the height of the airplane = 21000 - 4329

= 16671 feet

After giving pass to a plane it ascends by the height = 6333 feet

Now the height of the airplane = 16671 + 6333

= 23004 feet

Then the airplane descends again to give the pass to a airplane again.

Altitude after descending by 8453 feet = 23004 - 8453 = 14551 feet

Airplane is flying at 14551 feet.

2). Distance between the top of the mountain to the floor of the valley = 4392 feet

Valley is 93 feet below the sea level.

Therefore, the height of the mountain will be = 4392 - 93

= 4299 feet

hope this helps you

3 0
2 years ago
The vertices of square cdef are c(1, 1), d(3, 1), e(3,−1) and f(1,−1). Which of the following shows that its diagonals are congr
maks197457 [2]

The equation -1 = -\frac {1}{1} shows that the diagonals are congruent perpendicular bisectors.

The vertices of the square are given as:

  • c = (1,1)
  • d = (3,1)
  • e =(3,-1)
  • f = (1,-1)

<h3>How to determine the congruent perpendicular bisectors.</h3>

Start by calculating the slope of diagonal ce using:

m = \frac{y_2 -y_1}{x_2  -x_1}

So, we have:

m = \frac{-1-1}{3  -1}

m = \frac{-2}{2}

m_1 = -1

Next, calculate the slope of diagonal df using:

m = \frac{y_2 -y_1}{x_2  -x_1}

So, we have:

m = \frac{-1-1}{1-3}

m = \frac{-2}{-2}

m_2 = 1

The slopes of both diagonals are:

m_1 = -1

m_2 = 1

By comparing both slopes, we have:

m_1 = -\frac {1}{m_2}

i.e.

-1 = -\frac {1}{1}

Hence, -1 = -\frac {1}{1} shows that the diagonals are congruent perpendicular bisectors.

Read more about perpendicular bisectors at:

brainly.com/question/11006922

8 0
2 years ago
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ololo11 [35]

Answer:

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Explanation:

This is an automated message sent by the brainly + the parikh association.

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3 years ago
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ehidna [41]

Answer:

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