Answer:
+3
Step-by-step explanation:
if your subtracting a negitive it means your adding and its now a positive
Answer:
1/2 5/8 11/16
Step-by-step explanation:
i hope this is right for you good luck
Part A: After 9 days the radius of algae was approximately 12.81 mm. The reasonable domain to point is (0,9).
Part B: The 9 on the y-intercept represents the amount of algae the experiment started with.
Part C: (12.81-10.12)/7=0.38
Answer:
f(x)=−4(x+ 41 ) 2 − 4 11
Explanation:
The given function is
f(x) = - 4 {x}^{2} - 2x - 3f(x)=−4x 2 −2x−3
To write the function is vertex form, we need to complete the square.
We first factor -4 to get:
f(x) = - 4 ({x}^{2} + \frac{1}{2} x) - 3f(x−4(x2 + 21 x)−3
Add and subtract the square of half the coefficient of x.
f(x) = - 4( {x}^{2} + \frac{1}{2} x + \frac{1}{16} ) - \frac{1}{4} - 3f(x)=−4(x 2 + 21 x+ 16 1 )− 41 −3
We factor the perfect square trinomial and simplify to get:
f(x) = - 4( {x + \frac{1}{4} )}^{2} - \frac{11}{4}f(x)=−4(x+ 41 ) 2 − 4 11
<u>Markup . . . </u>
-- I buy a cabbage for $1.00 and put it on the shelf in my store.
-- I mark it up 100% . . . I offer it for sale for $2.00
-- I mark it up 200% . . . I offer it for sale for $3.00 .
<u>Markdown . . .</u>
-- I buy a cabbage for $1.00 and put it on the shelf in my store.
-- I mark it down 100% . . . I sell it for zero. (I give it away.)
-- I mark it down 200% . . . I give you $1.00 to take it home with you.
