The answer is 5/2 I just took the test!!! Hope I helped :)
Answer:
its B -15 - 10 = -25
Step-by-step explanation:
Divide $55.65 by 7 to get the cost of 1 key chain ($7.95). Then multiply the cost of 1 by 12 and get $95.40
<span>5° below zero is -5 degrees
</span><span>The temperature of a solution in beaker two what is the opposite of the temperature in beaker one so it's 5 degrees above zero
</span>
answer
<span>5° above zero</span>
The cofunction of cos is sin(90-x)
90 degrees is equal to PI/2
The cofunction becomes sin(PI/2 - 2PI/9)
Rewrite both fractions to have a common denominator:
PI/2 = 9PI/18
2PI/9 = 4PI/18
Now you have sin(9PI/18 - 4PI/18)
Simplify:
Sin(5PI/18)