QUESTION 1a.
We want to add

We group similar terms to get

Simplify:

QUESTION 1b.
The given function is:

Expand the parenthesis to obtain,

Group similar terms,

Simplify:

QUESTION 2
The given function is

The zeros of this function is given by;

Split the middle term.

Factor;




Answer:
12.2
Step-by-step explanation:
A^2 + B^2 = C^2
(7)^2 + (10)^2 = (C)^2
49 + 100 = C^2
149 = C^2
sqr(149) = C
12.2 = C
a) Given :
51 pounds of seed can be planted in = 9 acre field.
Per pound of seed = 
We can convert 9/51 in simplest fraction by dividing top and bottom by 3.
We get

<h3>Therefore, 3/17 of an acrs can be planted per pound of seed.</h3>
b) $10 amount = 16 pounds of sugar.
$1 amount = 16/10 = 1.6 pounds of sugar.
<h3>Therefore, 1.6 pounds of sugar she got per dollar.</h3>
Answer:
The answer is A.
Step-by-step explanation:
Because it takes 5730 years for half of a sample of carbon-14 atoms to decay. It says that 50% of the carbon atoms have decayed so that means that 5730 years have elapsed for that fossil.
Hope this helps!
The Answer To This Would 1 : 10 Because You Have To Divide Both By 4 So 4 Divided By 4 Gives You 1 And 40 Divided By 4 Gives You 10
~ Hope This Helps :)