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Tju [1.3M]
3 years ago
6

Please help!! The answer options are 12/35, 12/37, 37/12, 35/37 Which one is it??

Mathematics
2 answers:
Oxana [17]3 years ago
7 0

Answer:

sin= opposite leg/hypotenuse

Sin(a)=12/37

Step-by-step explanation:

IrinaVladis [17]3 years ago
4 0

Answer:

Step-by-step explanation:

Use the formula SOHCAHTOA

Sin =Opposite/Hypotenuse

Cos=Adjacent/Hypotenuse

Tan=Opposite/Adjacent

Answer

Sin=35/37

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The value of a certain car decreases by 16% each year. What is the 1⁄2-life of the car?
svet-max [94.6K]

Answer:

The half life of the car is 3.98 years.

Step-by-step explanation:

The value of the car after t years is given by the following equation:

V(t) = V(0)(1-r)^{t}

In which V(0) is the initial value and r is the constant decay rate, as a decimal.

The value of a certain car decreases by 16% each year.

This means that r = 0.16

So

V(t) = V(0)(1-r)^{t}

V(t) = V(0)(1-0.16)^{t}

V(t) = V(0)(0.84)^{t}

What is the 1⁄2-life of the car?

This is t for which V(t) = 0.5V(0). So

V(t) = V(0)(0.84)^{t}

0.5V(0) = V(0)(0.84)^{t}

(0.84)^{t} = 0.5

\log{(0.84)^{t}} = \log{0.5}

t\log{0.84} = \log{0.5}

t = \frac{\log{0.5}}{\log{0.84}}

t = 3.98

The half life of the car is 3.98 years.

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Step-by-step explanation:

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