Find the value of y. Round to the nearest tenth

Question

asked Nov 23, 2020 188k views

1 Answer

Cody Covey · Answer 1 · 2020-11-28T21:57:46+0000

The answer is:

The first option,

y=3.5

To solve the problem, we need to follow the next steps:

- Set your calculator in degree mode to calculate Cos(64°)

- Isolate Y by multiplying each side of the equation by 8.

Solving we have:

$Cos(64\°)=(y)/(8)\\\\0.44=(y)/(8)$

Multiplying each side of the equation by 8, we have:

$(0.44)*8=(y)/(8)*8\\3.52=y$

y=3.52

Rounding to the nearest tenth, we have:

y=3.5

Hence, the answer is the first option,

y=3.5

Have a nice day!