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3 years ago

Sin theta=-1/2 then cos theta=

Mathematics

1 answer:

zepelin [54]3 years ago

4 0

Answer:

Step-by-step explanation:

Step one:

Applying the SOH CAH TOA principle

assuming all dimensions are in cm

Step two:

Given data

opposite= 1 cm

hypotenuse= 2 cm

<h3>we can now solve for θ</h3>

Sin(θ)= opp/hyp

Sin(θ)= 1/2

Sin(θ)= 0.5

θ= sin-1 0.5

θ= 30°

hence from tables cos 30°= 0.866

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statuscvo [17]

your question: 

What are all the ways to classify each number? (whole number

What are all the ways to classify each number? (whole numberinteger, or rational number.

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3 years ago

A manager at a shopping mall counts 244 males and n females as they enter the mall. The manager realizes that 25% of all males a

olga nikolaevna [1]

<h3>Answer: Choice D</h3>

The manager is correct because the number of children, 0.25(n + 244), is equivalent to the manager's expression, 0.25n + 61.

=======================================================

Explanation:

There are 244 men and n women giving 244+n total people, which is the same as n+244.

25% of this is 0.25(n+244)

Distribute that 0.25 through to each term inside the parenthesis

0.25 times n = 0.25n
0.25 times 244 = 61

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In other words,

0.25(n+244) = 0.25n+61

is a true equation regardless of what value of n you pick. Both sides are identical.

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3 years ago

AB and BA name the same ray. Always Never Sometimes

Hitman42 [59]

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3 years ago

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Se generan ondas, introduciendo en agua el borde de una regla 15 veces en 3.0 segundos. Calcular: a) el periodo de las ondas b)

Ne4ueva [31]

Answer:

Ver explicacion

Step-by-step explanation:

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3 years ago

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Alla [95]

Answer:

$48\pi$

Step-by-step explanation:

Volume =

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3 years ago

Sin theta=-1/2 then cos theta=​

Sin theta=-1/2 then cos theta=