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Alika [10]
2 years ago
11

What is the measure of angle A please HELP I’ll give you BRAINLIEST

Mathematics
1 answer:
k0ka [10]2 years ago
8 0

Answer:

Option (3)

Step-by-step explanation:

By applying cosine rule in the triangle ABC,

BC² = AC² + AB² - 2(AC)(AB)cosA

5² = 3² + 7²- 2(3)(7)cosA

25 = 9 + 49 - 42cos(A)

25 = 58 - 42cos(A)

cos(A) = \frac{33}{42}

A = \text{cos}^{-1}\frac{11}{14}

A = 38.21°

A ≈ 38°

Option (3) will be the correct option.

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BASED ON THE GRAPH, WHICH STATEMENT IS CORRECT?
abruzzese [7]

Answer:

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Step-by-step explanation:

3 0
3 years ago
What is 9 29/40 as a decimal
earnstyle [38]

Answer:

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Step-by-step explanation:

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5 0
2 years ago
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Combining like terms with negative coefficients<br><br> −n+(−4)−(−4n)+6
Serjik [45]
Remember, if you add negative four, you're really subtracting four, or if you take away negative four, you're really adding four.

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3n+2
8 0
3 years ago
I got the table part but can someone explain why is the function relate to the graph for me? Please and thank you! ^.^
Rufina [12.5K]
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6 0
3 years ago
Can anyone do it I'll give you brainiest
Temka [501]

Answer:

<h2>64°</h2><h2 />

Step-by-step explanation:

? + 86 + 90 + 84 + 36 = 360

? = 360 - 86 - 90 - 84 - 36

? = 64

therefore, the missing angle = 64°

6 0
2 years ago
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