Answer:
Step-by-step explanation:
178.54-35.65=142.89
then you do 142.89/12.99=11
She bought 11 CDs
First calculate how many cookies makes in one hour and then I calculate the number of cookies he makes in nine hours
Logically if you double weight on something it means that you are adding the exact same weight as the first object to the same thing to make it twice the weight as the original, so yes... the weight will double if the length is doubled
Answer:
The vertex is [3,0]
Step-by-step explanation:
y=a(x−h)2+k , where ( h,k ) is the vertex of the parabola. By comparing the two equations, we see that h=3 and k=0 . The vertex is at ( 3,0 ).
I have a solution here to the same problem but a slight different given:
-1 x<=-1
ax-b -1<x<1
<span>2 x>=1
</span>
The solution is as follows:
<span>f(x) = {-1, x ≤ -1
...... { ax - b, -1 < x < 1
...... { 2, x ≥ 1
Then we must have:
lim(x-->-1) -1 = lim(x-->-1) ax - b
==> -1 = -a - b
==> a + b = 1
And we must have:
lim(x-->1) ax - b = lim(x-->1) 2
==> a - b = 2
So we need to solve the system of equations given by:
a + b = 1
a - b = 2
After doing so, you should get that:
a = 3/2
b = -1/2
By studying the solution above, you now have the ability to answer the problem on your own!
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