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mezya [45]
2 years ago
10

Please help me i dont get it at all

Mathematics
1 answer:
Hitman42 [59]2 years ago
8 0

y = 218.2. The lenght of side y by  trigonometry is 218.2.

In order to solve this problem we are going to use the angles and sides of a right triangle and its relation by expressions that we call trigonometric ratios.

In the image we can see that the lenght of the opposite leg is 141 , we do not know the lenght of the adjacent leg y and the hypotenuse x. The key to solve this problem is to use trigonometric ratios and the equation tan θ = sin θ/cos θ = opposite leg/adyacent leg = 141/y

Clear for y for the equation tan θ = sin θ/cos θ = 141/y, we obtain:

y = arctan θ (141)

y = arctan (43°)(141) = 218.2

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Which is the answer and how did you solve it?
motikmotik
Its pretty simple

9x-7y = 22
x + 3y = -24

(9x-7y = 22)
-9(x + 3y = -24)
= -9x -27y = 216
+ 9x-7y = 22
= -34y = 238
= / -34 = 238/-34
y = -7

now plug -7 in one of the equation
x + 3(-7) = -24
x -21 = -24
+21. +21
x = -3

so answer is x = -3 and y = -7

3 0
3 years ago
What type of counting problem is this? How many different sequences of 3 playing cards (from a single 52-card deck) exist?
n200080 [17]

Answer:

Permutation without repetition

Step-by-step explanation:

The order of the cards matter, which makes it a permutation, but since none of the cards are exactly the same, repetition isn't allowed/possible

7 0
3 years ago
Can you help me ? please ??
natali 33 [55]
60 miles per hour
so 156 miles = 156 /60 = 2.6 hours 
0.6 x 60 = 36
so 2.6 hours  = 2 hours 36 minutes

Kim leaves Rotherham at 7: 30AM
7:30 AM + 2 hours 36 minutes = 10:06 AM

Answer
Kim arrives in London after 10AM





6 0
3 years ago
Name the coefficient, base and power for each
Ede4ka [16]
3 is your coefficient
7 0
3 years ago
the area of a square sandbox is 83 square feet. to the nearest foot, what is the perimeter of sandbox?
vagabundo [1.1K]
Area=bh
b=base
h=height

Since a square has 4 equal sides, we can √83 to give us each side. This being 9.11 feet

perimeter=9.11+9.11+9.11+9.11=36.44

Answer: 36 to the nearest foot
7 0
3 years ago
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