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2 years ago

In angle ABC, AB = 2.5 m, BC = 3.2 m and AC = 2.9 m. Use the Cosine Law to find

Mathematics

1 answer:

Triss [41]2 years ago

3 0

9514 1404 393

Answer:

∠A ≈ 72°

Step-by-step explanation:

Fill in the given numbers and do the arithmetic.

cos A = (2.9² +2.5² -3.2²)/(2(2.9)(2.5)) = 4.42/14.5

The inverse cosine function is used to find the angle, given its cosine.

A = arccos(4.42/14.5)

∠A ≈ 72°

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Solnce55 [7]

Answer:

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Step-by-step explanation:

Divide the amount of candy by the number of jars:

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= approx. 1.4

So, each jar will have approximately 1.4 kg of candy

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3 years ago

What is the distance between (-9 -3) and (-4 -1)

AnnyKZ [126]

Answer:

|5.385|

Step-by-step explanation:

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3 years ago

Quincy found 120 shells during four days at the beach. if quincy found the same number of shells each day, how many shells did h

Svetach [21]

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5 0

3 years ago

Read 2 more answers

$15,000 is invested at a rate of 8% compounded quarterly. Identify the compound interest function to model the situation. Then f

Rina8888 [55]

Answer:

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7 0

2 years ago

Can someone help me <br> 14. Determine the arc length. Give your answer to two decimal places.

Paul [167]

Answer:

19.48 m

Step-by-step explanation:

The formula that is used to find arc length is:

arc length = 2πr $(\frac{angle}{360})$

In this question, r = 9m and the angle (θ) = 124°. Substitute the values into the formula.

arc length = 2 × π × 9 × $(\frac{124}{360})$

= 2 × π × 9 × 0.3444

= 19.48 m

8 0

3 years ago