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stira [4]
3 years ago
13

PLEASE HELP ASAP GEOMETRY 20 POINTS REAL ANSWERS ONLY!

Mathematics
1 answer:
DedPeter [7]3 years ago
8 0

Answer:

16.2

Step-by-step explanation:

Use the law of cos

c^2 = 8^2+10.4^2-2*8*10.4*cos(122.2 degrees)

=260.83

c = √260.83 = 16.15

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If 5 tractors can plow a field in 4 hours, how many hours will it take 3 tractors to plow the field?
Mrac [35]

The number of hours required for 3 tractors to plow the field is 2.4 hours

<em><u>Solution:</u></em>

Given that 5 tractors can plow a field in 4 hours

We have to find out number of hours required for 3 tractors to plow the field

5 tractors can plow a field in 4 hours, So time taken for 1 tractor

\text{ time taken for 1 tractor } = \frac{\text{ time taken for 5 tractor}}{5}

\text{ time taken for 1 tractor } = \frac{4}{5} \text{ hours }

<em><u>So time taken for 3 tractors is given as:</u></em>

time taken for 3 tractor = time taken for 1 tractor x 3

\text{ time taken for 3 tractor} = \frac{4}{5} \times 3 = \frac{12}{5}

\rightarrow \frac{12}{5} = 2.4

So number of hours required for 3 tractors to plow the field is 2.4 hours

3 0
3 years ago
Hey, how are you?
Ket [755]

Answer:

My day has been pretty okay!!

Step-by-step explanation:

Thank you for asking!!

4 0
2 years ago
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GuDViN [60]

Answer:

Step-by-step explanation:

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NEED HELP! The ski lift at Thunder Mountain called Devils Canyon is quite dangerous. Usually 2% of the skiers who attempt the ru
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We will be using the binomial probability formula to solve the problem

The formula is given by ⁿCₓ (p)ˣ (1-p)ⁿ⁻ˣ

Where:
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We can either calculate ⁿCₓ by using the scientific calculator using the ^nC_r button or by doing it manually use \frac{n!}{(n-x)!x!}

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P(3) = ¹⁰⁰C₃ (0.02)³ (0.98)⁹⁸
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Correct answer: option 3
7 0
3 years ago
I really don’t get this may you please help??
kkurt [141]
The plot shows three 3/4 in. Buttons.
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