Answer:



Step-by-step explanation:
Given


Solving (1): (f-g)(x)

Substitute values for f(x) and g(x)

Open Bracket


Reorder

Solving (2): (f-g)(10)
In (1)

So:



Solving (3): (f/g)(x)

Substitute values for f(x) and g(x)

Answer is x = -7 and x = -3
<span> x2 + 10x = -21
</span><span> x2 + 10x + 21 = 0
</span>(x +3) (x +7) = 0
(x +3) = 0
and
(x + 7) = 0
so x = - 3 and x = -7
Answer:
3.14 x 4
Step-by-step explanation:
That's not very close. It says that there's a mistake, either in the estimate
or in the actual work, and Lily should take another look at it. If it turns out
that the mistake is in the actual work, then you can see the value of taking
the time to do the estimate.
Answer:
All the others are 90 degrees too
Step-by-step explanation:
In a parallelogram opposite angles are congruent. Also in a quadrilateral the sum of angles is 360 degrees. since their are two pairs of congruent angles you could make an equation and it would look like this: 180+2x =360. x would be 90 making every angle 90 degrees