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andriy [413]
3 years ago
12

PLEASE HELP!

Mathematics
1 answer:
Arisa [49]3 years ago
7 0

Answer: it turned 115.8°

Step-by-step explanation:

The triangle formed is shown in the attached photo. The angle turned by the ship in the north west direction is ange A. To determine angle A, we would apply the law of Cosines which is expressed as

a² = b² + c² - 2abCosA

Where a,b and c are the length of each side of the triangle and A is the angle corresponding to a. Likening the expression to the given triangle, it becomes

165² = 111² + 83² - 2(111 × 83)CosA

27225 = 12321 + 6889 - 2(9213)CosA

27225 = 19210 - 18426CosA

18426CosA = 19210 - 27225

18426CosA = - 8015

CosA = - 8015/18426

CosA = - 0.435

A = Cos^- 1(- 0.435)

A = 115.8° to the nearest tenth

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Can somebody help me with this math problem?
skad [1K]

Answer:

B) Rational, not an integer.

Step-by-step explanation:

The number is a decimal continuing forever; it is predictable. This means that it is Rational. If the number was not repeating then it would be irrational.

The number is not an integer because it is not a whole number; it is a decimal.

7 0
3 years ago
Graph x^2 +8x+4y+8=0
Afina-wow [57]

Answer:

x        y

− 6      1

− 5       7 /4

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− 3       7 /4

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Step-by-step explanation:

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3 years ago
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liraira [26]

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Gianna spent 4 × $58 for art supplies so 4(58) + 8x all together.  We have

392 ≤  4(58) + 8x ≤ 472

We can work with both inequalities at once.  4(58)=232 so we subtract that from all three sides.

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20 ≤ x ≤ 30

Answer: Least: $20, Most: $30


5 0
4 years ago
Read 2 more answers
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Answer:

See below for answers and explanations

Step-by-step explanation:

1) Substitute d=100 into the equation and solve for s:

s=sqrt(9.81d)

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2) Substitute d=1000 into the equation and solve for s:

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Troyanec [42]

Answer: $650

Step-by-step explanation:

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90% * x =  585

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0.9x = 585

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Which means he paid $650 for the bike.

7 0
3 years ago
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