Answer:
b and E and c
Step-by-step explanation:
- A is false because some elements have the same image like 2.3 and 2.2 , 2.5 ...
- B is true because the image of an integer remains the same using the greatest integer function. So C is true
- E is true
<span>let 2x be the length of rectangw where x is value of x of point on parabola width is represented as y is the length.
Area = 2x*y = 2x (5-x^2) = 10x -2x^3
maximize Area by finding x value where derivative is zero
dA/dx = 10 -6x^2 = 0
--> x = sqrt(5/3)
optimal dimensions: length = 2sqrt(5/3) width = 10/3</span>
$39.40 all together. You would multiply the cost of 2.90 by the amount needed which is 6 and get you an answer of 17.4. Then you would multiply the cost of 4.40 by the amount needed which is 5 and get you the answer of 22. You would then add the sums 17.4 and 22 and get you your answer of $39.40
Answer:
9. 2a + 14
10. 7h - 70
Step-by-step explanation:
(2 x a ) + ( 2 x 7 )
(7 x h ) - ( 7 - 10 )
Answer:
$13
Step-by-step explanation:
8x1=$8 next 4x2=$8 than $8-$3=$5 into $8+$5=$13
