Answer:
Option b) 8x²+34; 45.52 centimeters
Step-by-step explanation:
Length of the sandwich is = 2x²+8 centimeters
Breadth of the sandwich = 2x²+9 centimeters
Therefore total perimeter of the sandwich = 2(length + breadth)
= 2 (2x²+8+2x²+9) centimeters
= 2( 4x²+17) centimeters
= (8x² +34) centimeters
If x = 1.2 then perimeter of the sandwich =
= 2(4×1.44+17) = 2(5.76+17)
= 2×22.76 = 45.52 centimeters
So the answer is option b) 8x²+34; 45.52 centimeters
Answer: 4, 5
Step-by-step explanation:
To answer this, first find the lowest common multiple of 12 and 15.
Simplifying 12 and 15 into their factors, we get (2 * 2 * 3) and (5 * 3).
The lowest common multiple is 3.
You can then multiply each package's value by the other's factors, excluding 3. For example, we could multiply 12 by 5 and 15 by 2 * 2.
Both are equal to 60, which is the lowest number of each type of pastry you can buy in equal amounts.
60 / 15 = 4, the amount of packages of fruits needed
60 / 12 = 5, the amount of packages of chocolates needed
Answer:
-7
Step-by-step explanation:
The equation is in the form
ax^2 +bx +c =0
x^2 -x+2=0
a=1 b=-1 c =2
The discriminant is
b^2-4ac
(-1)^2-4(1)(2)
1-8
-7
Using the critical point concept, it is found that a = -3 and b = 7.
<h3>What are the critical points of a function?</h3>
- The critical points of a function are the values of x for which:
In this problem, the function is:
Hence, the derivative is:
Then:
Since the critical point is at x = 2, we have that:
Then:
Critical point at (2,3) means that when , then:
You can learn more about the critical point concept at brainly.com/question/2256078