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Marat540 [252]
2 years ago
12

A boat travels 21 miles due north and then 28 miles due east. Then the boat travels in a straight line back to its starting poin

t. What was the straight line distance of the boat to its starting point?
Mathematics
1 answer:
Aneli [31]2 years ago
3 0
21²+28²=c²
√1225=c
35 miles - distance of the boat to its starting point
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PLS HELP ASAP
ale4655 [162]

Correct answer is : Area of triangle is 15\sqrt{3} sq.units

Solution:-

We can do it in 2 methods.

Method 1:-

Given that AB=6, BC=10 and m∠B = 120

Then area of triangle = \frac{1}{2}XbaseXheight

Let us assume AB is base and D is an altitude from C onto AB.

Then sin(60)= \frac{CD}{BC}

          CD = BC sin(60)

Hence height = 10*\frac{\sqrt{3}}{2} = 5\sqrt{3}

Hence area of ΔABC = \frac{1}{2} X6X5\sqrt{3} = 15\sqrt{3} sq.units

Method2:-

Area of triangle = \frac{1}{2} acsin(B)

Here a= BC=10, c=AB=6.

Hence area of triangle = \frac{1}{2}X6X10sin(120) = 15\sqrt{3} sq.units


6 0
3 years ago
What are the factors of 18 24 36
Natalka [10]

Factors of 18: 1, 2, 3, 6, 9, 18

Factors of 24: 1, 2, 3, 4, 6, 8, 12, 24

Factors of 36: 1, 2, 3, 4, 6, 9, 12, 18, 36

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What do the difference between the adjacent angle and opposite angle​
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The difference between the adjacent angle and the opposite angle is that for the adjacent side is the side next to the reference angle, and for the opposite side is the side directly across from the reference angle.

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Have a supercalifragilisticexpialidocious day!

7 0
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Simplify <br> ( 5w + 13 ) + ( 2w + 1)
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Answer:

10w^2 + 24w + 13

Step-by-step explanation:

use Foil method

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