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3 years ago

What is cos 0 when sin 0

Mathematics

1 answer:

taurus [48]3 years ago

4 0

Answer:

Cos θ = √7/3

Step-by-step explanation:

From the question given above, the following data were obtained:

Sine θ = √2 / 3

Cos θ =?

Recall

Sine θ = Opposite / Hypothenus

Sine θ = √2 / 3

Thus,

Opposite = √2

Hypothenus = 3

Next, we shall determine the Adjacent. This can be obtained as follow:

Opposite = √2

Hypothenus = 3

Adjacent =?

Hypo² = Adj² + Opp²

3² = Adj² + (√2)²

9 = Adj² + 2

Collect like terms

9 – 2 = Adj²

7 = Adj²

Take the square root of both side

Adjacent = √7

Finally, we shall determine the value Cos θ. This can be obtained as follow:

Adjacent = √7

Hypothenus = 3

Cos θ =?

Cos θ = Adjacent / Hypothenus

Cos θ = √7/3

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Help me plz:

kirill115 [55]

$\huge \bf༆ Answer ༄$

Let's solve ~

$\sf5(x - 4) = 10$

$\sf(x - 4) = 10 \div 5$

$\sf \: x - 4 = 2$

$\sf x = 2 + 4$

$\sf x = 6$

$\sf2x(4x + 3x) = 21$

$\sf2x(7x) = 21$

$\sf14 {x}^{2} = 21$

$\sf {x}^{2} = 21 \div 14$

$\sf x {}^{2} = \dfrac{3}{2}$

$\sf x = \sqrt{ \dfrac{3}{2} }$

$\sf3(4 - 2x) = 28$

$\sf12 - 6x = 28$

$\sf - 6x = 28 - 12$

$\sf x = 16 \div - 6$

$\sf x = - \dfrac{8}{3}$

$\sf 10x(2 + 13) = 300$

$\sf10x(15) = 300$

$\sf10x = 300 \div 15$

$\sf x = 20 \div 10$

$\sf x = 2$

I hope it helps ~

8 0

2 years ago

Read 2 more answers

Two runners are saving money to attend a marathon. The first runner has $112 in savings, received a $45 gift from a friend, and

saul85 [17]

The right answer is: d.112 + 25m + 45 = 50 + 60m

Step-by-step explanation:

Let m be the number of months

<u>For First Runner:</u>

He already has 112 in savings and got 45 from a friend so these will be constant values and as he will be saving $25 each month so

$112+45+25m$

<u>For Second Runner:</u>

He already has $50 in saving and ill save 60 each month so

$50+60m$

In order to find that when there accounts will have same amount, the expressions for both will be put equal

$112+45+25m=50+60m$

The value of m will give us the number of months after which the accounts of both runners will have same amount.

Hence,

The right answer is: d.112 + 25m + 45 = 50 + 60m

Keywords: Linear Equation, Variables

Learn more about linear equations at:

#LearnwithBrainly

4 0

4 years ago

Read 2 more answers

The base of a triangular prism is what shape?

kirill [66]

Look at the two faces which are parallel. Those are the bases and give the prism its name. In this case, the triangles are the parallel faces. Therefore, they are the bases and the prism is a triangular prism

4 0

3 years ago

Convert 528 cm to yards

Paladinen [302]

Answer:

5.77428 yards

Step-by-step explanation:

hope this helps

4 0

3 years ago

Read 2 more answers

Add or Subtract.<br> (−2^2 − 4 + 13) + (12^2 + 2 − 25)<br><br> (7^2 + 4 − 26) − (−7^2 − 3 + 15)

aleksklad [387]

Here is your answer

1. (−2^2 − 4 + 13) + (12^2 + 2 − 25)

= (4-4+13)+ (144+2-25)

[Note:- -2^2=(-2×-2)= +4]

= 13+ (146-25)

=13+121

= 134

2. (7^2 + 4 − 26) − (−7^2 − 3 + 15)

= (49+4-26) - (49-3+15)

= 49 +4 -26 -49 +3 -15

= 7-41

= -34

HOPE IT IS USEFUL

6 0

3 years ago