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Likurg_2 [28]
2 years ago
14

What is the exact value of cos(-60°)?​

Mathematics
2 answers:
vladimir1956 [14]2 years ago
8 0
Cos (-60) = 1/2

If you look at the cosine graph below you can see the black line pointing at 60 degrees is at 0.5, which is 1/2

Afina-wow [57]2 years ago
4 0

Answer: 1/2

Step-by-step explanation:

cosine=adjacent/hypotenuse

Cos (-60)=1/2

This is a special triangle

see below as the ratio of each side

Hope this helps!! :)

Please let me know if you have any question

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A vehicle travels 57 kilometers north and then travels 26 kilometers south. What is the current position of the vehicle? (2 poin
solniwko [45]

Answer:

C. 31 kilometers north of its starting location

Step-by-step explanation:

<em>Please see attached a rough sketch of the situation for your reference</em>.

Step one:

Displacement North= 57km

Displacement South= 26km

Required

The  final displacement

The current position is attained by subtracting 26km from 57km

=57-26= 31km

Therefore the current position is

C. 31 kilometers north of its starting location

5 0
2 years ago
Ms jenkins has a grass lawn that is 24m wide and 30m long. mr jenkins cuts the grass at a reate of 9m per minute. how long will
Kisachek [45]

It will take Mr. Jenkins 1 hr and 20 minutes to cut all the grass.

To know how long it will take Mr. Jenkins to cut all the grass, get the total area of the lawn and divide it by the rate Mr. Jenkins cut the grass.

The area of the lawn can be calculated using the formula for the area of a rectangle given by:

A = l x w

where l is the length and w is the width.

Using this formula, the grass lawn that is 24 m wide and 30 m long has an area of:

A = l x w

where

l = 30 m

w = 24 m

A = 30 m x 24 m

A = 720 m^2

Meanwhile, the time it will take Mr. Jenkins to cut the grass lawn with an area of 720 m^2 can be computed using the rate.

amount = rate x time

720 m^2 = 9 m^2/minute x t

t = 720 / 9

t = 80 minutes = 1 hr 20 minutes

To know more about rate, visit brainly.com/question/24950565.

#SPJ4

5 0
1 year ago
What pattern would to you expect when two variables are related by a linear model with a positive slope
olganol [36]
There isnt one its has to be consistent but honestly idk
4 0
2 years ago
Which category does each card go into?
WINSTONCH [101]

Step-by-step explanation:

E3, E6, E11, E7: no solution

E1, E12 : 1 solution

E2, E8, E10 : infinite solutions

7 0
3 years ago
Read 2 more answers
If dane walks 20 feet then walks beack 80. how far did he travel?
r-ruslan [8.4K]

Answer:

-20

Step-by-step explanation:

-20

4 0
2 years ago
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