Answer:-44
Step-by-step explanation:
-16-(28)=-44
Answer: 10pi
Step-by-step explanation:
C=2*pi*r
C=2*pi*5
C=10*pi (exact)
This is exact if u want numbers, you’ll have to round-off and you can just put 10xpi into a calculator If u want to see.
There are no real roots for a negative number, so -81 has no real roots, if the number is 81 however, then the tow roots are 9
You can use the sum and difference identities which for cosine is cos(a+b)= cosacosb-sinasinb
1. No 2. Yes 3. No
I’m pretty sure
