8.545 rounded to the nearest hundredth is 8.55. I think so because the number in the hundredth place is 4, the number on the right of it is 5. 5 is equal to 5 so the 4 turns into 5
Answer: y = -4x + 4
<u>Step-by-step explanation:</u>
use the product formula (ab' + a'b) to find the derivative:
x * (1 - 2x)³
a = x a' = 1
b = (1 - 2x)³ b' = 3(-2)(1 - 2x)²
= -6(1 - 2x)²
<u>ab' + a'b</u>
= x(-6)(1 - 2x)² + 1(x)
= -6x(1 - 2x)² + x
Plug in the given x-values to find the slope:
= -6(1)(1 - 2(1))² + (1)
= -6(-1)² + 1
= -6 + 1
= -5
Next, input the slope and the point into the Point-Slope formula:
y + 1 = -5(x - 1)
y + 1 = -4x + 5
y = -4x + 4
Answer:
A) Original price : y =10.x
Cheaper brand : y = 7x
The original box is $3 more than the cheap one.
Proof: Suppose 1 box is bought of each (x=1),Original will cost $10 & the Cheaper Price is $7
B) Each time he buys a cheap brand he save $3 ($10-$7).
On 5 cheap boxes, He would save $3 x 5 boxes = $15.
Step-by-step explanation:
Part A: The price of the first cereal that Yani bought was $10 and he new cereal is $7.
$10 - $7 = $3. The original box of cereal was $3 more than the super- saving cereal.
Part B: Yani will save $15 each month.
With the $10 cereal he used to pay $50 per month. Now with the super-saving cereal, he will now pay $35 per month.
So we need to subtract $50 - $35 = $15
Subtract 0.75x from both sides
1.25x-0.75x = 0.5x
0.5x= 50
Divide 0.5 from both sides
X= 100
