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34kurt
3 years ago
8

For five days, several hikers walk the distance and direction described by the vector

Mathematics
1 answer:
Xelga [282]3 years ago
8 0

Answer:

  94.76°

Step-by-step explanation:

Assuming the coordinates are <E, N>, the total distance from the start is ...

  5<5, -2> +<-1, 8> = <5·5 -1, 5(-2) +8> = <24, -2>

These coordinates represent a vector south of east, so the bearing measured clockwise from north will be greater than 90°. The reference angle (with respect to a north-south line) will be ...

  arctan(24/2) = 85.24°

The bearing is 180° -85.24° = 94.76°.

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The temperature changed from 7°f at 6pm to -5°f at midnight. What was the difference between the high an low temperatures? Whats
Ronch [10]

Answer:

Difference between high and low temperatures: 12°F

Average change in temperature per hour: 2°F

Step-by-step explanation:

The difference between high and low temperatures was: 7 - (-5) = 12 (°F)

Midnight is 12am, so 6pm to midnight is 6 hours.

The average change in temperature per hour is: 12 / 6 = 2 (°F)

7 0
3 years ago
Can someone give me the answers plz:)
Alborosie

Remark

There is no short way to do this problem and no obvious way to get the answer other that to solve each part.  

Solve

A

\dfrac{x + 1.6}{2} =\text{x + 0.1}                    Multiply by 2

x + 1.6 = 2(x + 0.1)                                         Remove the brackets

x + 1.6 = 2x + 0.1*2                                        

x + 1.6 = 2x + 0.2                                          Subtract x from both sides

1.6 = x + 0.2                                                  Subtract 0.2 from both sides  

1.6 - 0.2 = x                        

1.4 = x

Circle A

B

Subtract 2x from both sides.

3x - 2x = 1.4

Circle B

C

Remove the brackets.

4x + 6 = 2x - 6           Add 6 to both sides

4x + 12 = 2x               Subtract 4x from both sides.

12 = -2x                      Divide by - 2

12/-2 = x

x = - 6                         Don't circle C

D

I'm going to be very scant in my solution of this. You can fill in the steps.

3x = 4.2

x = 4.2/3

x = 1.4

Circle D

5 0
3 years ago
Read 2 more answers
Can you help me please ?
rusak2 [61]

Answer:

C. :)

Hope it helps

Step-by-step explanation:

8 0
3 years ago
How do I simplify this
inna [77]
The calculator came up with this -23.399156493247038795316239455591
7 0
3 years ago
What number is 1/10 great as 7962
My name is Ann [436]
What you have to do is divide the number by one tenth

Answer = 796.2
5 0
3 years ago
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