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2 years ago

What is the area of ∆ABC to the nearest tenth of a square meter?

Mathematics

2 answers:

Alona [7]2 years ago

5 0

The answer would be: nswer: A = 587.3

Solution:
BC ^ 2 = 36 ^ 2 + 36 ^ 2 - 2 * 36 * 36 * cos (65) BC = root (1496.573466) BC = 38.68557181 Then, for the area we have: A = root (s (s-a) * (s-b) * (s-c)) s = (a + b + c) / 2 Substitute: s = (36 + 36 + 38.68557181) / 2 s = 55.34278591 A = root (55.34278591 * (55.34278591-36) * (55.34278591-36) * (55.34278591-38.68557181)) A = 587.2874463 A = 587.3

finlep [7]2 years ago

4 0

The remaining side using cosine theorem is:
BC ^ 2 = 36 ^ 2 + 36 ^ 2 - 2 * 36 * 36 * cos (65)
BC = root (1496.573466)
BC = 38.68557181
Then, for the area we have:
A = root (s (s-a) * (s-b) * (s-c))
s = (a + b + c) / 2
Substituting:
s = (36 + 36 + 38.68557181) / 2
s = 55.34278591
A = root (55.34278591 * (55.34278591-36) * (55.34278591-36) * (55.34278591-38.68557181))
A = 587.2874463
Rounding off we have:
A = 587.3
Answer:
A = 587.3

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1 year ago

Anthony brings 4 bags of popcorn to a meeting. The bags of popcorn are all the same size. There are 14 people at the meeting. Ea

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Each person ate 2/7 of the popcorn

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2 years ago

Easton is going to invest $340 and leave it in an account for 8 years. Assuming the interest is compounded quarterly, what inter

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Answer:

100.7%

Step-by-step explanation:

Since the interest is compounded quarterly, and there are 4 quarters per year, that would leave us with 32 quarters total where interest is acquired. Now, we need to find the interest rate, that would be required in order to end up with 420 dollars after 32 quarters.

We can setup a formula using our period of time and the money he invested into the bank:

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We can divide 340 from both sides, and simplify the right side to 21 divided by 17:

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1 year ago

Can someone help me solve question 2 and 3?

ale4655 [162]

Answer:

Question 2 = 15 drinks

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Question 2:

For every drink, there are three sizes

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5:15

15 drinks

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5 red, 6 yellow, 8 blue, 3 orange, 2 purple

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If you like my answer and explanation, mark me as brainliest!

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2 years ago

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Strike441 [17]

Answer:

The speed rate is 100 feet per 25 seconds, or 20 feet every 5 seconds, (100 / 5 = 20)

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2 years ago

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