Answer:

Step-by-step explanation:
Given expression is,

First equalize the denominators of the fractions,

Now combine the fraction as a single fraction,

Since, we can not solve this fraction further, this will be simplified form of the given expression.
Answer:
<h2>1/2 of 80</h2>
Step-by-step explanation:
45% is close to 1/2 (50%) and 76 is close to 80, so 1/2 of 80 is the best answer.
1/2 of 80 is 40
45% of 76 is 76 x 0.45 is 34.2
He walks to and back from school. 7/8 x 2
14/8 or 1 6/8 or 1 3/4 miles in all.
<span>f(x)=x^2+6x+3
=(1/2.6)^2=3^2=9
f(x)=(x2^+6x+9)+3-9
=(x+3)^2-6</span>
Answer:
2π
Step-by-step explanation:
When a circle's radius is 1—called a unit circle—its circumference is 2π.