6 + 4 ÷ 2
The "order of operations" (which you learned a long time ago
if you're in high school now) says that division should be done
before addition.
So do the division: 4 ÷ 2 = 2
Now you have 6 + 2
Now do the addition: 6 + 2 = 8 .
The expression that is equivalent to is .
Given trigonometric expression is:
<h3>What is the
value of
?</h3>
The value of is because lies in the second quadrant and the cosine function is negative in the second quadrant.
So,
The range of sine and cosine functions is the same i.e. [-1,1].
Both the functions are periodic functions with periods 2π.
Hence, the expression that is equivalent to is .
To get more about trigonometric functions visit:
brainly.com/question/2193113
14)NO..... -2x+5y=10.....-2(-3)+5(2)=10.....6+10 is not =10
15)YES......-2x+5y=10....-2(-10)+5(-2)=10.....20-10=10
16)YES......-2x+5y=10.....-2(5)+5(4)=10......-10+20=10