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amm1812
3 years ago
12

If f(x) = 4x and g(x) = 2x – 1, what is g(f(–2))?

Mathematics
2 answers:
zalisa [80]3 years ago
6 0

Answer:

Answer is -17

Step-by-step explanation:

Given that

f(x) =4x\\g(x)=2x-1

we have to find when x=-2 the composiiton of function g*f

First find out

f(-2) = 4(-2) =-8

Hence

g{f(-2)} \\= g(-8) \\= 2(-8)-1\\=-17

koban [17]3 years ago
3 0
The answer is negative seven teen
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70 degrees

Step-by-step explanation:

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2 years ago
How can you convert the Heun’s Method into the Implicit Heun’s Method? Show an example
g100num [7]

Answer:

Heun's method is also known by its other name called Modified Euler methods. This method is used in computational or mathematical science.

Step-by-step explanation:

Euler method is the method that is also pronounced in two similar stages such as Runge- Kutta methods. This method has been named after Dr. Heun.

This method is used for the solution of ordinary differential equations with its given values. There is some method to calculate this method. The improved Runge Kutta methods are also called the Butcher tableau method, the other methods are also called the Ralston methods.

4 0
3 years ago
Find the midpoint of the line segment JK if j (4,6) and k(0,-4)
Snowcat [4.5K]

Answer:

(2,1)

General Formulas and Concepts:

Order of Operations: BPEMDAS

Midpoint Formula: (\frac{x_1+x_2}{2},\frac{y_1+y_2}{2})

Step-by-step explanation:

<u>Step 1: Define points</u>

J (4, 6)

K (0, -4)

<u>Step 2: Find midpoint</u>

  1. Substitute:                         (\frac{4+0}{2},\frac{6-4}{2})
  2. Add/Subtract:                    (\frac{4}{2},\frac{2}{2})
  3. Divide:                               (2,1)
4 0
3 years ago
What is the porosity of the gravel sample?(The sediment volume for each sample is 400ml. ) a. 23. 75% b. 28. 75% c. 55. 75% d. 8
Anna [14]

The porosity of the gravel sample is 28.75%

We have to determine.

What is the porosity of the gravel sample?

<h3>The porosity of the gravel sample;</h3>

Porosity is the term which is defined as the volume of voids present in the soil to the total volume of the soil.

The formula used to calculate the Porosity is;

\rm Porosity =\dfrac{Volume \ of \ voids \ present \ in soil}{Volume \ of \ soil}

A sponge is a case of a permeable fabric because it incorporates a huge number of purge spaces compared to its volume.

Porosity is the property of a question that communicates the entire volume of purge or pore space within the material.

Hence, the porosity of the gravel sample is 28.75%

Learn more about "porosity" :

brainly.com/question/2593663

4 0
2 years ago
Consider each expression. Is the value of the expression negative?
tatyana61 [14]

Answer:

A.

No

B.

Yes

C.

Yes

Step-by-step explanation:


7 0
3 years ago
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