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pentagon [3]
2 years ago
14

Whats the answer please hurry

Mathematics
1 answer:
rewona [7]2 years ago
8 0
Give me points ahahahah thank you sir
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If you're good at trigonometry please help me with question nine a and b and show full working out tyyyyyyyy ;)
Mariulka [41]

Problem 9, part a)

Compass bearings always have north as the starting point. This is where 0 degrees is situated, and 360 degrees as well. As the bearing angle increases, you'll turn to the right toward the eastward direction. Effectively you're sweeping out a clockwise rotation. The bearing 322 degrees is in a northwest position as the diagram shows (place the ship at the bottom right corner of the triangle). The bottom right acute angle of the triangle is 322 - 270 = 52 degrees. This is the reference angle we'll use for finding the distance d.

With respect to the reference angle of 52 degrees, the side 18.5 is the opposite side and d is the adjacent side. Use the tangent ratio to get...

tan(angle) = opposite/adjacent

tan(52) = 18.5/d

d*tan(52) = 18.5

d = 18.5/tan(52)

d = 14.4537840903742

The approximate value of d is 14.4537840903742 km

This rounds to 14.5 when rounding to one decimal place.

<h3>Answer: 14.5 km</h3>

=======================================================

Problem 9, part b)

Recall that

distance = rate*time

where "rate" is another term for "speed" or "velocity"

We can solve this for the time to get

time = distance/rate

------

We found the distance back in part a) above. We are given the rate of 48 km/h

So,

time = distance/rate

time = 14.4537840903742/48

time = 0.3011205018828

This is the time it takes in hours. Multiply by 60 to convert to minutes

0.3011205018828 hours = 60*0.3011205018828 = 18.067230112968 minutes

This rounds to the whole number 18

<h3>Answer: 18 minutes</h3>
5 0
3 years ago
How are the values of eights related in 880?
marin [14]
The relationship between 8’s in the value of 880 shows their numerical order in the number.<span> In which to further elaborate we shall break down the number into its expanded form and word form: </span><span>
1. </span><span> 800 = six hundred and 80 = eighty
</span><span>2. <span> eight hundred eighty</span></span>
3 0
3 years ago
X is less than or equal to 7 and greater than 3
bezimeni [28]
X≤7
x>3

As a result, the answer will be 3 less than x and less than or equal 7. Hope it help!
3 0
3 years ago
Is 24 the correct LCD to use for subtracting 6 3/4 - 1 2/6 ? Why or why not?
zimovet [89]

Answer:

Step-by-step explanation:

A

No 24 is not the best number to use for the LCD, although it will work. 12 is much better because it is smaller.

B

Factor each number into it's primes.

24 =<u> 2*2*2</u>*3

32 = <u>2*2*2</u>*2*2

The highest common factor is 2*2*2 = 8

C

9/10 - 3/10 = 6/10 The denominator remains the same. The numerators get subtracted.

6/10 = 3/5 Two goes into both numerator and denominator of the answer. Therefore you can divide both 6 an 10 by 2

3 0
2 years ago
Hitunglah volume kubus dengan panjang rusuk rusuknya sebagai berikut:<br> a.6cm b.5,6cm c.3,4dm
Elena-2011 [213]
A. v.kubus = s×s×s
                 = 6×6×6
                 = 216
b. v.kubus = s×s×s
                = 5,6×5,6×5,6
                = 175,616
c. v.kubus = s×s×s
                 = 34×34×34
                 =39304

6 0
3 years ago
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