let f(x)=x2 -4x and g(x) =7-x find (fg)(2)

Answers

Answer 1

Step-by-step explanation:

f(x) = x² - 4

g(x) = 7 - x

= (fog)(2)

= x² - 4

= (7 - x)² - 4

= (7 - 2)² - 4

= 5² - 4

= 25 - 4

= 21

(fog)(2) = 21


Related Questions

x t-3 = y solve for t.

Answers

Answer:

t = (y+3)/x

Step-by-step explanation:

Step 1: Add 3 to both sides.

[tex]tx - 3 + 3 = y + 3[/tex] [tex]tx = y + 3[/tex]

Step 2: Divide both sides by x.

[tex]\frac{tx}{x} = \frac{y+3}{x}[/tex] [tex]t = \frac{y+3}{x}[/tex]

Therefore, the answer is [tex]t = \frac{y+3}{x}[/tex].

[tex]\sf{Heya}[/tex] ~

*ੈ✩‧₊˚  [tex]\mathfrak{Satori~ Tendō~is~here~to~help}[/tex]  ੈ✩‧₊˚

[tex]X~t-3=y[/tex] Solve for t.

[tex]\sf{solve~for~t,~Xt~-~3=y~:~t=\frac{y~+~3}{X} ;~X~∉~0[/tex]

STEPS :

[tex]\bold{Add~3~to~both~sides~:}[/tex]

[tex]\sf{Xt~-~3~+~=~y~+~3}[/tex]

[tex]\bold{Simplify~:}[/tex]

[tex]\sf{Xt~=~y~+~3}[/tex]

[tex]\bold{Divide~both~sides~by~X;}~X~∉~0[/tex]

[tex]\sf{\frac{Xt}{X}~=~\frac{y}{X}~+~\frac{3}{X};~X~≠0[/tex]

[tex]\bold{Simplify~:}[/tex]

[tex]\sf{t=\frac{y~+~3}{X};~X~≠0[/tex]

Hopefully This Helps !

#LearnWithBrainly

[tex]\underline{Answer~:}[/tex]

[tex]\sf{Tendou}[/tex] ~

Find the critical value zα/2 that corresponds to a 83% confidence level

Answers

The critical value zα/2 that corresponds to a 83% confidence level is 1.37.

The z score is used to determine by how many standard deviations the raw score is above or below the mean. The z score is given by:

[tex]z=\frac{x-\mu}{\sigma} \\\\where\ x=raw\ score,\mu=mean,\sigma=standard\ deviation[/tex]

Given that the confidence level (C) = 83% = 0.83

α = 1 - C = 0.17

α/2 = 0.17/2 = 0.085

The z score of α/2 corresponds with the z score of 0.415 (0.5 - 0.085) which is equal to 1.37

Find out more at: https://brainly.com/question/15016913

PLS HELP WITH ALGEBRA TWO

Answers

Answer:

Answers in Explanation

Step-by-step explanation:

8x^3 + 2x^2 - 20x - 5

(8x^3 + 2x^2) + (-20x - 5)

2x^2 (4x + 1) + (-5) (4x+1)

(2x^2 - 5) (4x + 1)

state whether slope will be positive, negative, or zero.
(-2,3) (-1,-3)

Answers

Answer:

the Slope is 0 because the x value is going up as the y stays the same

Brainliest please

Slope would be negative

Michael paid an entrance fee of $8 plus an additional $2.25 per game at the bowling alley. He spent $50.00. Write and solve an equation to determine how many games Michael played.

Answers

Answer:

4

Step-by-step explanation:

$8.00+$2.25 = $10.25

$50.00÷$10.25= 4.

How can magnets cause objects to have kinetic energy? How can magnets cause objects to move? Use and bold these key words in your answer. convert, kinetic energy, potential energy, magnets

Answers

Answer:

 If there is a system of magnets being held in place, there is potential energy

Step-by-step explanation:

pretty sure you've seen this answer before but 8ts right so just go along with it ok bud?

Answer:

Okay

Magnets work because opposite poles are attracted to each other, this is how the objects move (depending on how the atoms and how to iron is, it could be much stronger or weaker)

If there is a system of magnets there is potential energy, when you let go of the magnets (or when they stick together) it converts the potential energy to kinetic energy because it moved.

Step-by-step explanation:

Refer to the map shown in exercise.2. If m.angle 1 os 64° what is the measure of angle.2?

Answers

post the map
we need to see α photo in order to answer the question.

Answer:180

Step-by-step explanation:

Craig has a job waiting tables where he earns $3.45 per hour plus tips. Craig earned $73.68 in tips during his shift yesterday.

If x represents the number of hours Craig worked yesterday, which of the following equations can be used to find the amount of money Craig earned yesterday?
A. y = 3.45x - 73.68
B. y = 73.68x + 3.45
C. y = 3.45x + 73.68
D. y = 73.68x - 3.45

Answers

C is the right answer

Pleased help math experts urgent

Answers

Answer:

1. get closer to 0

2. symmetrical across y=-x

3. x cannot be equal to 0

4. decreasing if x<0, increasing if x>0

Step-by-step explanation:

yes

9. Modeling Real Life A machine that
makes toy spinners is in operation for
8 hours each day. The machine makes
7,829 toy spinners in 1 day. About how many toy spinners does the machine make each hour?

Answers

Answer:

8 hours = 7,829 toy spinners

24 hours= x toy spinner

7829 / 24 x 8

2069 for one hour

Step-by-step explanation:

so your answer is this hope this helps good luck if it does not i am sorry

The number of toy spinners the machine make each hour is 2068.

Given that, the machine makes 7,829 toy spinners in 1 day.

What is the unitary method?

The unitary method is a technique for solving a problem by first finding the value of a single unit, and then finding the necessary value by multiplying the single unit value.

Here,

8 hours = 7,829 toy spinners

24 hours= x toy spinner

Now, number of toys in one hour = 7829/(24×8)

= 2069.66

= 2069 per one hour

Therefore, the number of toy spinners the machine make each hour is 2069.

To learn more about the unitary method visit:

brainly.com/question/22056199.

#SPJ5

Which of the following is not a solution of the equation below (3x(x-1)(x-2)=0

Answers

What is the options?

Angle ABC And BCA a are complementary angle ABC is 85° if angle BCA is named as 3b -7 what could be the value of b?

Answers

Complementary angles add to 90 degrees

Therefore,

angle ABC + angle BCA = 90

But, angle BCA = 3b - 7

and angle ABC = 85

Therefore,

85 + 3b - 7 = 90

3b - 7 = 5

3b = 12

b = 4

i really need help no clue what it is

Answers

Answer:

Step-by-step explanation:

Well, according to this graph,

The greatest growth should be between the years 3 and 4. the reason is because if you count (under the students column) how many numbers are increasing between the numbers. In this case, the largest (increasing) number of students was between 25 and 33. (i counted 7)

So, the completed sentence should be:

(please note the parenthesis is the drop down.. I am unsure of the answer choices in the drop downs though so they might be differently worded. this is just what i have gathered.)

The greatest growth was between years (3) and (4). The growth between those years was about (7 students). In the last dropdown it may just be 7 but in word form.

I’m in 7th grade and don’t know this. Dndjdjdjdjsnnsndxj

Answers

Answer:

Step-by-step explanation:

Let's go:

Right: have an angle measuring 90°.

Equilateral: all 3 sides of triangle are same value.

Obtuse: have an angle measuring > 90°

Scalene: all 3 sides of triangle are different value.

In this case:

The Green one is Scalene and obtuse.

The red one is equilateral.

I hope I've helped you.

Green- obtuse( angle above 90°)
Red- equilateral(all angles are the same

Could anybody help me out with this?
I would really appreciate it! (Algebra Problem)​

Answers

Answer:

44

Step-by-step explanation:

You substitute 9 for x and then work it out following the order of operations.

f(9) = | 1-5(9) |

     = | 1-45 |

     = | -44 |

     = 44

Answer: 44

Step-by-step explanation:

A school carnival sold 24 early-admission tickets and 72 regular tickets. What percentage of the tickets sold were early-admission tickets? Write your answer using a percent sign (%).

Answers

Answer:

25%

Step-by-step explanation:

add both kinds of tickets first to get the total

24 early admission + 72 regular = 96 total tickets

then divide 24 early tickets by 96 total tickets to get the decimal, then multiply by 100 to get percent

[tex]\frac{24}{96} = 0.25 * 100 = 25[/tex]%

Question: What does the slope represent in this situation?

Answers:

(A) The total cost of the tomatoes

(B) the cost for each pound of tomatoes

(C) the total number of pounds of tomatoes

(D) the number of pounds of tomatoes for each dollar paid

Answers

The answer is a it says it above the graph

Solve graphically x=-3 y=5

Answers

Go sideways -3 and go up 5

This diagram shows a pre image triangle ABC and its image triangle A'B'C.,after a series of transformations. Select from the drop down menu to correctly complete the transformations. NEED HELP ASAP!!!!​

Answers

Answer:

First blank: translated

Second blank: Reflected across the x axis

Third blank: Rigid (if that's an answer choice)

Fourth blank: congruent

Step-by-step explanation:

Solve for x
2(x−1)=5(x−2)
Give your answer as an improper fraction in its simplest form.

Answers

Step-by-step explanation:

2(x-1)=5(x-2)

=2x-2=5x-10

=2x-5x= -10+2

= -3x= -8

=

[tex] \frac{8}{3} [/tex]

Answer:

[tex]x \: = \: \frac{8}{3} [/tex]

Step-by-step explanation:

Given Question:-To solve for x

Given Equation:-2(x−1)=5(x−2)

Solution:-

2(x - 1) = 5(x - 2)

=> 2 × x - 2 × 1 = 5 × x - 5 × 2 [Distributive property]

=> 2x - 2 = 5x - 10 [Simplification]

=> 5x - 2x = 10 - 2 [Bringing like terms on one side]

=> 3x = 8 [Simplification]

[tex] = > x = \frac{8}{3}(ans) [/tex]

[In simplest form of improper fraction]

There are 10 marbles in the bag below. 7 of the marbles are red, 1 is purple and 2 are green. A marble is picked at random from the bag. Work out the probability that the marble is red, P(red), as a) a decimal. b) a percentage.​

Answers

Answer:  a) 0.7

               b)  70%

Step-by-step explanation:

a) There are 10 marbles.The red marbles are 7

                so that  7/10

                 then change to decimal 7/10=0.7

b) if we get percentage *100

        so,    7÷10*100%

                 70%                            

guys help right now i need a answer

Answers

Answer:

Step-by-step explanation:

Four quadrants:

Quadrant I (right side, above the x-axis to the right of the y-axis).

Quadrant II (left side, above the x-axis to the to the left of the y-axis).

Quadrant III ( left side , below the x-axis to the left of the y-axis).

Quadrant IV  (right side, below the x-axis to the right of the y-axis

                          Y

                            l                      

           II  (-x, y)    l           I      (x, y)      

    x                      l                        x

             III            l        IV    

         (-x, -y)         l        (x, -y)

                            l

                          Y      

 Now you can answer the questions by locating the point and explain.

4e+ g2- Зе – 9 – g help​

Answers

Answer:   e + g2 - g - 9

Step-by-step explanation:

Membership at the YMCA costs $15 per month plus $80 to sign-up. Blink costs $29 per month but is free
to sign-up. After how many months will the two gyms cost the same amount?

Answers

Let months be x

[tex]\\ \sf\longmapsto 80+15x=29x[/tex]

[tex]\\ \sf\longmapsto 29x-15x=80[/tex]

[tex]\\ \sf\longmapsto 14x=80[/tex]

[tex]\\ \sf\longmapsto x\approx 6months[/tex]

Answer:

43  months in ymca including the $80 sign up fee is equal to 25 months in blink

Step-by-step explanation:

$725 divided by $29 =25 months

$ 725 - $80 sign up = $645 .

Now we divide this by $15.

$645 divided by 15= 43 months

Need help please I’m stuck

Answers

Answer:

I am Assuming 100p=1 euro

half of 96 is 48 so you have 48 1 euro coins.

you also have 48 50p coins which equals 24 euros

48+24=72

Please help me with this question. What formula would you use to find the missing lengths of the right triangles?

Answers

a2 + b2 = c2 can be use to find missing lengths of the right triangles

*What is the correct value of b?
~50/100 = b/28
-b=14
-b=20
-b=10
*What is the value of n?
~25/100 = 7/n
-n=28
-n=24
-n=32

Answers

Answer:

-b = 14

-n = 28

Step-by-step explanation:

For b

50/100=b/28 cross-multiply

1400= 100b divide both sides by hundred

-b = 14

For n

25/100= 7/n cross multiply

25n = 700 divide both sides by 25

-n = 28

2). You are to construct the walls for the storage building that will be 8' high; using the

dimensions previously given, how many sheets of paneling will be needed to cover all four

walls? (1 panel size is 4' wide and 8' tall).

3). The vertical members for the wall are spaced 16" apart. How many vertical members is

needed for a wall 12' long?

Answers

Answer:28

Step-by-step explanation:

solve the equation and justify each step using the algebraic properties of equality

Answers

Answer:

-5

Step-by-step explanation:

3x=-13-2

3x=-15

x=-5

3x-1 over 5 = x+1 over 3

I need asap

Answers

Answer:

(3x-1)/5= (x+1)/3

3(3x-1)=5(x+1)

then solve which the final answer will give you x=8

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