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sergey [27]
3 years ago
9

HELP PLEASEEEEEEEEEE

Mathematics
2 answers:
goldenfox [79]3 years ago
5 0

Answer:

I think the answer is 17 7/10

Rasek [7]3 years ago
4 0

Answer:

6\frac{9}{10} or 6 9/10

Step-by-step explanation:

8 1/5 x 2 = 16 2/5

16 2/5 - 9 1/2 = 6 9/10

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Find the angle between the given vectors to the nearest tenth of a
pochemuha

Answer: 109.1 degrees

Step-by-step explanation:

To find the angle between the given vectors, we will use the formula below:

Cos(θ) = (U.V)/ |U|.|V|

Where

U = 13i - 8j

V = 2i + 9j

U.V = (2x13) + (-8×9)

U.V = 26 - 72

U.V = - 46

|U| = sqrt ( 13^2 + 8^2)

= sqrt ( 233) = 15.264

|V| = sqrt( 2^2 + 9^2)

= sqrt ( 85 ) = 9.22

Substitute all the value of the parameters into the formula

Cos ø = -46 / (15.3 × 9.2)

Cos ø = - 46 / 140.72

Cos Ø = - 32687

Find the cos inverse of the value

Ø = cos^-1( -32687)

Ø = 109.079 degrees

Therefore, the angle between the given vectors to the nearest tenth of a degree is 109.1 degrees

6 0
3 years ago
A ship leaves port at​ 1:00 pm and travels Upper N 70 degrees Upper WN70°W at the rate of 10 mph. Another ship leaves the same p
Leni [432]

Answer:

30.4 miles

Step-by-step explanations:

Please refer to the attached image for explanations

7 0
3 years ago
Training has saved $425 to spend during her 14-day vacation about how much money can she spend a day
lukranit [14]
She can spend about $30 per day.
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