Answer:
483/798-5458+7429=19035674846 :))
Step-by-step explanation:
Answer: C.) Nitrogen-fixing bacteria in the soil
Step-by-step explanation: "Nitrogen-fixing bacteria in the soil and within the root nodules of some plants convert nitrogen gas in the atmosphere to ammonia. Nitrifying bacteria convert ammonia to nitrites or nitrates. Ammonia, nitrites, and nitrates are all fixed nitrogen and can be absorbed by plants."-https://www.Khanacademy.org/
all credit to https://www.Khanacademy.org/
At first I read it wrong and I put D, but I read it again and it was actually C. Sorry
GOOD LUCK!!
Answer: Identify which of the following functions are eigenfunctions of the operator d/dx: (a) eikx, (b) cos kx, (c) k, (d) kx, (e) e−ax2
Step-by-step explanation: First, we going to apply the operator derivate to each item. Remember that a function f is an eigenfunction of D if it satisfies the equation
Df=λf, where λ is a scalar.
a) D(eikx)/dx= ik*eikx, then the function is a eigenfunction and the eingenvalue is ik.
b) D(cos kx)/dx= -ksen kx, then the funcion is not a eigenfunction.
c) D(k)/dx=0, then the funcion is not a eigenfunction.
d) D(kx)/dx=k, then the funcion is not a eigenfunction.
e) D(e-ax2)/dx= -2ax*e-ax2, then the function is a eigenfunction and the eingenvalue is -2ax
Answer:
Original rectangle: Since the area of a rectangle is the length * width, the area of this rectangle is 7 * 2 = 14 square cm.
New rectangle: The new dimensions of this are 7*3 = 21 cm by 2*3 = 6 cm. To find the area, we multiply these two together. 21*6 = 126 square cm.
126 is 9 times greater than 14, so the area will be multiplied by 9.
Step-by-step explanation:
Answer:
-50
Step-by-step explanation:
First, we must know that ab is the same as:
ab is the same as a multiply b
Now, since a is given as -5, we can substitute a with -5. This is shown below:
substitute ab with -5
Similarly, b is given as 10. So, we can substitute b with 10:
substitute b with 10
With this, we can now evaluate ab as shown below:
ab is equal to -50
