MATHEMATICS
MIDDLE SCHOOL

Answer:

Answer:

I believe so, since it's still x/y

MIDDLE SCHOOL

Her bedroom wall is 3 yards tall, what is the closet equivalent in centimeters?

Answer:

274.32 or 274 if being rounded

Step-by-step explanation:

HIGH SCHOOL

A model used for the yield Y of an agricultural crop as a function of the nitrogen level N in the soil ) (measured in appropriate units) is Y = (kN) / (1 + N2) where k is a positive constant. What nitrogen levels gives the best yield?

Answer:

A nitrogen level of 1 gives the best yield.

Step-by-step explanation:

We are given the following:

Yield Y of an agricultural crop as a function of the nitrogen level N in the soil

First, we differentiate Y(N) with respect to N, to get,

Equating the first derivative to zero, we get,

Solving, we get,

Again differentiation Y(N), with respect to N, we get,

At N = 1

Thus, by double derivative test, the maximum value of Y(N) occurs at N = 1.

Thus, largest yield of crop is given by:

Y(1) =

COLLEGE

If x equals negative 2 and y equals the square root of 12, then begin expression . . . 2 times the quantity . . . 3 times x raised to the third power, plus 2 times y raised to the second power . . . end expression . . . equals

I will assume that you want help in writing the expression since these do not end with equal signs.

2 * ((3 * x)^3) + 2(y^2) You simply replace the x with -2 and y with sqrt (12)

2 * (-2)^3 + 2 (12)

-16 + 24

8

Variables, letters, ordinary numbers and operators are used to represent numbers in an algebraic expression, like what we commonly see in algebra. A mathematical expression with a variable is 2x + 3 is an example of a mathematical expression. A coefficient, which is a number that is multiplied by the variable is a requirement for all variables.

MIDDLE SCHOOL

What is the mean for 43005,43007,43006,43005,43007

The mean would be 43006.

To find the mean, you simply add up all of the numbers in the sequence and divide by how many numbers are in the sequence.

43005+43007+43006+43005+43007=215030

215030 / 5 = 43006.

To find the mean, you simply add up all of the numbers in the sequence and divide by how many numbers are in the sequence.

43005+43007+43006+43005+43007=215030

215030 / 5 = 43006.

Answer: 43006

To find the mean:

1. Add all the numbers up

2. Divide the sum of the numbers by how many numbers there are

43005 + 43007 + 43006 + 43005 + 43007 = 215030

215030 ÷ 5 = 43006

To find the mean:

1. Add all the numbers up

2. Divide the sum of the numbers by how many numbers there are

43005 + 43007 + 43006 + 43005 + 43007 = 215030

215030 ÷ 5 = 43006

HIGH SCHOOL

For the past 5 years, Frank and Peggy have deposited $15,000 in a retirement account with a simple interest rate of 7%. They plan to continue to make annual deposits for the next 20 years. Explain how thier money will grow over time. Focus on the earning for the first several years and explain how their money will grow.

next 25 years addition of 1050x25 = $26250 they

will get

MIDDLE SCHOOL

Determine the constant of variation for the direct variation given (0.0), (3, 12). (9. 36)

3

4

12

Answer:

The const. of variation / proportionality is thus 4.

Step-by-step explanation:

Direct variation is modeled by y = kx, where k is the constant of proportionality. The associated line passes thru the origin, and so the y-intercept, b, is zero.

If we go from (3, 12) to (9, 36), x increases by 6 and y increases by 24. Thus, the slope, same as the constant of proportionality in this case, is

k = rise / run = 24 / 6, or 4. The const. of variation / proportionality is thus 4.

MIDDLE SCHOOL

Would you most likely measure a leaf using ounces ,pounds o tons? explain

ounces A leaf us very light and ounces are the smallest measurement listed.

I would use ounces because 16 ounces is a pound and 2,000 pounds is one ton, ounces is the smallest of the three measures provided, and a leaf is really light.

HIGH SCHOOL

Which transformations will produce similar, but not congruent, figures? Select each correct answer. (MORE THAN ONE ANSWER)

A) Square ABCD is reflected across the x-axis and then dilated by a scale factor of 2 to form square A"B"C"D" .

B) Square ABCD is dilated by a scale factor of 45 and then translated 1 unit right to form square A"B"C"D" .

C) Square ABCD is translated 8 units right and 8 units up and then reflected across the y-axis to form square A"B"C"D" .

D) Square ABCD is rotated 270° clockwise and then dilated by a scale factor of 13 to form square A"B"C"D" .

B,C,and D, are the answers. Hope it helps.

I believe its B, C, and D....sorry if I'm wrong

COLLEGE

Consider the function f(x) = x² – 3x – 4 and complete parts (a) through (C). (a) Find f(a+h); f(a+h)-f(a) (b) Find (c) Find the instantaneous rate of change of f when a = 7. (a) f(a+h) = (Simplify your answer. Do not factor.)

Answer:

(a)

(b)

(c)

Step-by-step explanation:

(a)

Simply evaluate (a+h) in the function:

(b)

Evaluate (a) in the function:

Using the previous answers lets calculate f(a+h)-f(a)

(c) To find the rate of change of f(a+1) when a=7 we need to calculate its derivate at that point: