Find the exact value of cos 15°

Step-by-step explanation:

Using the difference formula for cosine and the exact values

cos45° = sin45° = , cos30° = , sin30° =

cos(a - b) = cosacosb + sinasinb

Note 15° = 45° - 30°, thus

cos15°

= cos(45 - 30)°

= cos45°cos30° + sin45°sin30°

= ( × ) + ( × )

= +

=

i dont know

step-by-step explanation:

$650 per month plus utilities

step-by-step explanation:

just based on the info you gave, it would seem more cost effective to rent at $650 per month plus utilities.   if utilities are, in fact, $150 per month, your monthly living costs would be $800 as opposed to the other option of $825.