1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Zinaida [17]
3 years ago
12

Can someone help me please

Mathematics
2 answers:
Mrac [35]3 years ago
8 0

Answer:

2x +  {x}^{2}  + (x + x) - 4

when x is 3:

= 2(3) +  {(3)}^{2}  + (3 + 3) - 4 \\  = 6 + 9 + 6 - 4 \\  = { \boxed{ \boxed{17}}}

Cerrena [4.2K]3 years ago
6 0

Step-by-step explanation:

f(x) = 2x +  {x}^{2}  + (x + x) - 4 \\ f(x) = 2x +  {x}^{2}  +2x - 4 \\ f(x) =  {x}^{2}  + 4x - 4 \\ f(3) =  {(3)}^{2}  + 4(3) - 4 \\ f(3) = 9 + 12 - 4 \\  \boxed{f(3) = 17}

  • <u>17</u> is the right answer.
You might be interested in
a city that has an elevation of 15 meters is closer to sea level than a city with an elevation of -10 true or false? explain you
12345 [234]

Answer:

False

Step-by-step explanation:

At sea level, elevation is 0. This means that we can portray sea level as being the midpoint of distances below sea level and distances above sea level.

Thus, a distance of 1 m below sea level = - 1 is equivalent to a distance of 1 m above sea level albeit in opposite directions.

Hence, an elevation of 15m above sea level is greater in distance Than an elevation of - 10 m below sea level because the absolute value of 15 is greater than the absolute value of 10.

|15 - 0|= 15

|-10 - 0| = 10

Hence, elevation of - 10 below Sea level is closer to sea level than elevation of 15 above sea level

5 0
3 years ago
What is the mean absolute deviation (MAD) of the data set?
erastova [34]
The answer is 4 i think
7 0
4 years ago
Plot three points that are solutions of the equation 2x-y=4
Gemiola [76]
X=1
x=2
x=3

2(1)-y=4
2-y=4
-2 both sides
-y=2
÷-1 both sides
y=-2

(1,-2)


2(2)-y=4
4-y=4
-4 both sides
-y=0
y=0

(2,0)


2(3)-y=4
6-y=4
-6 both sides
-y=-2
÷-1 both sides
y=2

(3,2)
4 0
3 years ago
Read 2 more answers
постройте график функции у=-2х^2+4х-2 и найти координаты вершины параболы
IrinaK [193]

Answer:

Quit

Step-by-step explanation:

8 0
3 years ago
Determine if the numerical value describes a population parameter or a sample statistic. 74% of all instructors at your school t
notka56 [123]

Answer:

Population parameter

Step-by-step explanation:

We are given the following in the question:

74% of all instructors at your school teach 2 or more classes.

Parameter and statistic:

  • Parameter is the value that describes a population.
  • Population is the collection of all the possible observations of an event.
  • Statistic is the quantitative value that describes a sample.
  • A sample is a part of a population and is always smaller than a population.

Population:

all instructors at your school

Parameter:

74% of all the instructors at your school teach 2 or more classes

Thus, 74% describes the population that takes two or more classes.

Hence, it is a population parameter.

6 0
4 years ago
Other questions:
  • How much linoleum is needed to cover a rectangular floor that measures 10 feet by 12 1/2 feet?
    13·2 answers
  • How do you find which function has a greater rate of change?
    6·1 answer
  • A checkers board is 8 squares long and 8 squares wide. The area of each square is 14 square centimeters. Estimate the perimeter
    15·2 answers
  • Determine whether the graph is the graph of a function. A coordinate axis is drawn with a line crossing the x axis at negative t
    13·2 answers
  • Triangle ABC be similar to triangle DCE.
    15·1 answer
  • describe the steps you would follow to write a two step equation you can use to solve a real world problem
    6·1 answer
  • 0.285714 to a fraction
    8·1 answer
  • By​ air, the distance from city a to city b is 3008 miles less than the distance from city c to city
    8·1 answer
  • Express the sum of the angles of this triangle in two different ways.<br> Х<br> 3<br> X<br> 2<br> 2x
    6·1 answer
  • Help plzzzzzzzzzz will mark brainilest
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!