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3 years ago

Triangle ABC has 2 known sides. A = 7, b = 5. Angle C = 24.63. What is the value of side c, correct to one decimal place?

1 answer:

5 0

We use the Law of Cosines:
side c² = a² + b² -2ab • cos(C)
side c^2 = 7^2 + 5^2 -(2*7*5*cosine(24.63))
side c^2 = 49 + 25 -(70 * 0.90902)
side c^2 = 74 - 63.6314 
side c^2 = 10.3686 
side c = 3.22

Source:
http://www.1728.org/trigtut2.htm

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Answer 2. Ella was born early in the morning on a Monday. She got married on the 9074th day of her life. What day of the week wa

m_a_m_a [10]

Answer:

Ella got married on a Wednesday.

Step-by-step explanation:

Let's solve this problem by understanding the following:

Each week is composed by 7 days: Monday, Tuesday, Wednesday, Thursday, Friday, Saturday, and Sunday.

So 1 week = 7 days;

Because the married day was on the 9074th day of her life, we can find the number of weeks that 9074 days represent:

$\frac{1 week}{7 days} * 9074 days = 1296.285714 weeks$

This means that 9074 days represent 1296.285714 weeks, which can be interpreted as 1296 entire weeks and a fraction of a week (0.285714).

Now let's calculate how many days 0.285714 weeks represent:

$\frac{7 days}{1 week} * 0.285714 weeks = 2 days$

This means that 9074 days are actually 1296 weeks and 2 days, because Ella was born on a Monday, and because after 7 days (1 week) it is Monday again, after 1296 weeks it is Monday, but as we also calculated 2 extra days, then the married day is two days after a Monday, that is a Wednesday.

In conclusion, Ella got married on a Wednesday.

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3 years ago

What is the maximum number of children among whom 32 red marbles, 144 blue marbles and 176 green marbles can be divided equally

Leto [7]

Answer:

Maximum number of children among whom 32 red marbles, 144 blue marbles and 176 green marbles can be divided equally is 16.

Step-by-step explanation:

Finding HCF of 32, 144, 176

32 = 2 * 2 * 2 * 2 * 2

144 = 2 * 2 * 3 * 2 * 2 * 3

176 = 2 * 2 * 2 * 11 * 2

HCF = 2 * 2 * 2 * 2 = 16

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2 years ago

What is the number of the parking space covered by the car?

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Answer: the number of the parking spot covered by the car is 87

Step-by-step explanation:

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Therefore, number assigned to the parking space covered by the car is 87

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4 years ago

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Rewrite this expression as an addition equation 2/5 - 3/5

MissTica

Answer:

2/5+(-3/5)

Step-by-step explanation:

2/5+(-3/5)

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Help please, I will give brainliest :)

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Answer/Step-by-step explanation:

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