PLEASE HELP!!!!!!!
For f(x) = 4x + 3 and g(x) = 9x find the following composite functions and state the domain of each
(a) f o g (b) g o f (c) f o f (d) g o g
(a) (f o g)(x) =

Answers

Answer 1

Answer:

Step-by-step explanation:

For f(x) = 4x + 3 and g(x) = 9x

(a) (f o g) (x)

= f (g (x))

= f (9x)

= 4(9x) +3

= 36x + 3

Its domain is any real number.

(b) (g o f) (x)

= g (f (x))

= g (4x + 3)

= 9 (4x + 3)

= 36x + 27

Again its domain is any real number.

(c) (f o f) (x)

= f (f (x))

= f (4x + 3)

= 4(4x + 3) + 3

= 16x + 12 + 3

= 16x + 15

Again its domain is any real number.

(d) (g o g) (x)

= g ( g (x))

= g (9x)

= 9(9x)

= 81x

Again its domain is any real number.

Answer 2

Answer:

solution given:

f(x) = 4x + 3

g(x) = 9x

answer:

a.fog(x)=f(9x)=4×9x+3=36x+3

domain=real number

b.gof (x)=g(4x+3)=9(4x+3)=36x+26

domain=real number

c.fof(x)=f(4x+3)=4(4x+3)+3=16x+12+3

=16x+15

domain: real number

d.

gog(x)=g(9x)=9×9x=81x

domain: real number.


Related Questions

Find the surface area of the figure

Answers

Answer:

[tex]\large\boxed{S.A.=1,119\ in^2}[/tex]

Step-by-step explanation:

We have:

two triangles with base b = 17in and height h = 7in

two rectangles with length l = 17in and width w = 10in

two rectangles with length l =11in and width w = 10in

one rectangle with length l = 8in and width w = 11in

one rectangle with length l = 15in and width w = 11in

one rectangle with length l = 17in and width w = 11in

The formula of an area of a triangle:

[tex]A_\triangle=\dfrac{bh}{2}[/tex]

b - base

h - height

The formula of an area of a rectangle:

[tex]A_{\boxed{\ }}=lw[/tex]

l - length

w - width

Calculate:

[tex]A_\triangle=\dfrac{(17)(7)}{2}=59.5\ in^2\\\\A_1=(17)(10)=170\ in^2\\\\A_2=(11)(10)=110\ in^2\\\\A_3=(8)(11)=88\ in^2\\\\A_4=(15)(11)=165\ in^2\\\\A_5=(17)(11)=187\ in^2[/tex]

The Surface Area:

[tex]S.A.=2A_triangle+2A_1+2A_2+A_3+A_4+A_5[/tex]

Substitute:

[tex]S.A.=2(59.5)+2(170)+2(110)+88+165+187=1,119\ in^2[/tex]

the starting salary at a company is $38000 per year.the company automatically gives a raise of 3.5% per year.write the explicit and recursive frmulas for the geometric sequence formed by the salary increase.

Answers

Final answer:

The explicit formula for the salary increases represented as a geometric sequence is a_n= 38,000(1.035)^(n-1), and the recursive formula is a_1= $38,000 and a_n= a_(n-1) × 1.035 for n > 1, reflecting an annual raise of 3.5%.

Explanation:

The starting salary at a company is $38,000 per year with an annual raise of 3.5%. To represent the salary increases as a geometric sequence, we need both explicit and recursive formulas.

The explicit formula for a geometric sequence is an= a1 × r(n-1), where a1 is the first term, r is the common ratio, and n is the term number. In this case, a1= $38,000 and r = 1.035 (since the salary increase is 3.5%, or 0.035 in decimal form, plus the original amount, hence 1 + 0.035). Therefore, the explicit formula is an= 38,000(1.035)(n-1).

The recursive formula defines each term based on the previous term. It can be written as a1= $38,000, an= a(n-1) × 1.035, for n > 1. This means that starting from the second year (when n > 1), the salary is obtained by multiplying the previous year's salary by 1.035.

Find the measure of an angle with measure between 0 degrees and 360 degrees that is coterminal with an angle measuring 800 degrees.

Answers

Final answer:

To find a coterminal angle to 800 degrees within the 0 to 360-degree range, divide 800 by 360 and find the remainder, which is 80 degrees. Hence, 80 degrees is the angle that's coterminal with 800 degrees.

Explanation:

To find an angle that is coterminal with 800 degrees, which means an angle that shares the same terminal side as the 800-degree angle but is between 0 degrees and 360 degrees, we use the concept of coterminal angles. Since a complete circle has 360 degrees, we can subtract or add multiples of 360 degrees to any angle to find a coterminal angle.

Here’s how we find it for 800 degrees:

Divide 800 by 360 to find how many complete turns the angle makes: 800 ÷ 360 = 2.22. This shows the angle makes more than 2 full rotations.Find the remainder when 800 is divided by 360 to find the coterminal angle within the 0 to 360-degree range. The remainder is 80 degrees (800 - 720 = 80).

Therefore, 80 degrees is the angle between 0 degrees and 360 degrees that is coterminal with an angle measuring 800 degrees.

If the radius of a circle is 14 ft, then the diameter of the circle is _____.

7 ft
28 ft
42 ft
87.92 ft

Answers

Answer:

The answer is 28ft.

Step-by-step explanation:

A radius will always be exactly half of the diameter: meaning, the diameter is double the length of the radius.

A recent survey by the cancer society has shown that the probability that someone is a smoker is P(S)=0.19. They have also determined that the probability that someone has lung cancer, given that they are a smoker is P(LC|S)=0.158. What is the probability (rounded to the nearest hundredth) that a random person is a smoker and has lung cancer P(S∩LC) ?


0.35


0.03


0.02


0.83

Answers

Answer:

P (S∩LC) = 0.03

Step-by-step explanation:

We are given that the probability that someone is a smoker is P(S)=0.19 and the probability that someone has lung cancer, given that they are a smoker is P(LC|S)=0.158.

Given the above information, we are to find the probability hat a random person is a smoker and has lung cancer P(S∩LC).

P (LC|S) = P (S∩LC) / P (S)

Substituting the given values to get:

0.158 = P(S∩LC) / 0.19

P (S∩LC) = 0.158 × 0.19 = 0.03

Jim Juice treats that are in the shape of a cone. The molds he bought are each 3 inches (in.) deep with a diameter of 3 in. What is the approximate volume of juice needed for Jim to make 6 juice treats?

A.169.6 in
B.127.2 in
C.84.8 in
D.42.4 in

Answers

Answer:

Option D. [tex]42.4\ in^{3}[/tex]

Step-by-step explanation:

we know that

The volume of the cone (juice treats) is equal to

[tex]V=\frac{1}{3}\pi r^{2}h[/tex]

we have

[tex]r=3/2=1.5\ in[/tex] ----> the radius is half the diameter

[tex]h=3\ in[/tex]

assume

[tex]\pi=3.14[/tex]

substitute

[tex]V=\frac{1}{3}(3.14)(1.5)^{2}(3)=7.065\ in^{3}[/tex]

Multiply the volume of one juice treats by 6

[tex](6)7.065=42.39=42.4\ in^{3}[/tex]

What is the mean absolute deviation of Dean's homework scores? 70, 95, 35, 90, 85

Answers

Answer:

18.

Step-by-step explanation:

Mean of the values = (70+95+35+90+85) / 5

=  75.

Mean absolute deviation  :-

70 - 75 = |-5|  = 5  (absolute value is taken

95 - 75 = 20

35-75 = 40

90-75 = 15

85-75 = 10

Mean Absolute Deviation = (5 + 20 + 40 + 15 + 10) /  5

= 18.

Answer: 18

Step-by-step explanation: it was correct on ttm

Which of the following shows the correct order of the numbers below?

First who answers will get brainlyest

Answers

Answer:

c)

Step-by-step explanation:

if you look at option c it would be correct because 0.75 (3/4) is bigger than 0.7. Then 11/12 is a bigger proportion then 0.75. there for your answer is correct.

Final answer:

The correct order of the numbers given when converted to decimals for easy comparison is 0.7, 3/4 and 11/12, which corresponds to option b: 0.7 < 3/4 < 11/12.

Explanation:

This is a question about comparing and ordering fractions and decimals. To answer this, we first need to convert all the numbers into the same format. We can convert the fractions 11/12 and 3/4 into decimals for easier comparison.

First, to convert 11/12 to a decimal, you'll do the division to find approximately 0.9167. Secondly, 3/4 can be converted to a decimal by performing 3 divided by 4, which equals 0.75. Now, we can easily compare these decimals to 0.7.

From this, we can see that 0.7 is less than 0.75 (3/4) and both 0.7 and 0.75 are less than 0.9167 (11/12). So the correct order of the numbers from least to greatest would be 0.7 < 3/4 < 11/12.

So the correct option is b. 0.7 < 3/4 < 11/12.

Learn more about Ordering Numbers here:

https://brainly.com/question/3729546

#SPJ3

A father who is 42 years old has a son and a daughter. The daughter is three times as old as the son. In 10 years, the sum of all their ages will be 100 years. How old are the two siblings at present? PLEASE HELP!!!!!!!!!!!!!!!!

Answers

Answer:

The daughter is 36 years old and the son is 12 years old.

Which system of linear inequalities is graphed?

Answers

Both lines are dotted so no equation should include equal to in it.

The shaded area is on the left side .

The correct answer would be y>2x+1 and x+y = -2

The 3rd answer is correct.

Answer:

y>2x+1 and x+y < -2 represent the graph line.

Step-by-step explanation:

Given : graph .

To find : Which system of linear inequalities is graphed

Solution : We have given graph with two line both lines are dotted line and shaded down.

Equation of line form  : y = mx + b.

Where, m = slope ,  b= y intercept.

Line x+y < -2 less than sign for shaded down and y intercept -2.

and y>2x+1.

Therefore, y>2x+1 and x+y < -2 represent the graph line.

Which equation can be used to find the volume of the right rectangular prisms

A) V = (10)(5)

B) V = (10)(2)

C) V = (10)(5)(2)

D) V = 10(5 + 2)2

Answers

The answer is C because it’s length x width x height

Answer:

C) V = (10)(5)(2)

Step-by-step explanation:

V = (10)(5)(2) To find the volume of a right rectangular prisms, multiply the length times the width times the height. -- V = lwh.

This sphere has a diameter of 12 meters.
What is its exact surface area and its exact volume?
Show the formulas and show your work.

Answers

Answer:

area: 144π m²volume: 288π m³

Step-by-step explanation:

The formula for the surface area of a sphere is ...

  A = 4πr²

For a radius of 6 meters, that is ...

  A = 4π(6 m)² = 144π m²

___

The formula for the volume of a sphere is ...

  V = (4/3)πr³ = A·(r/3)

For the same sphere, this is ...

  V = (144π m²)(6 m/3) = 288π m³

Please answer this question! 25 points and brainliest!

Answers

chur answer is gonna be 63787 km

A. concave dodecagon

B. Concave hexagon

C. Convex hexagon

D. Convex dodecagon

Answers

Answer:

bro whats the question

Step-by-step explanation:

Conrad paid $52.26 for a pair of shoes. Michelle paid $3.89 more for a pair of shoes than Conrad paid for his. How much did Michelle pay for her shoes

Answers

Answer:Michelle paid $56.15 for her shoes

Step-by-step explanation:

Since Michelle paid $3.89 more for her shoes compared to Conrad, who paid $52.26. This means you have to add $3.89 to $52.26.

$3.89+$52.25= $56.15

Final answer:

Michelle paid $56.15 for her shoes, which is $3.89 more than the $52.26 that Conrad paid for his.

Explanation:

The question involves a simple arithmetic calculation to determine how much Michelle paid for her shoes. To find the answer, we will add $3.89, which is the additional amount Michelle paid, to $52.26, which is the amount Conrad paid for his shoes.

Step-by-step calculation:

Conrad's shoe price: $52.26Additional amount paid by Michelle: $3.89Michelle's shoe price: $52.26 (Conrad's price) + $3.89 = $56.15

Therefore, Michelle paid $56.15 for her shoes.

Simplifying the expression results in what binomial expression?

Answers

Answer:

The answer is 2x−5

Step-by-step explanation:

see the image

A college football stadium holds 45,000 fans. In a random sample of 30 fans, 26 were wearing the colors of the home team. Predict the number of fans who are wearing the colors of the home team.

Answers

Answer:

38,999

Step-by-step explanation:

In your sample you have 26 out of 30. I like to get that number into a percentage, so you do 26 divided by 30

26/30 = .8666

Then you take your total amount of fans, 45,000 and multiply it by your percentage wearing team colors.

45,000 x .8666 = 38,999.97

Since you can't have .97 of a person, your round it down to 38,999.

What is the value of x?

Last question please!

Answers

Answer:

x = -1

Step-by-step explanation:

-2 to 2 is 4 units, so -3x + 1 = 4.

We subtract 1 from both sides to get -3x = 3.

Then we divide each side by -3 to get x = -1.

12 decreased by twice a number is the same as 8 times the sum of the number and four. What is the number?

Answers

The answer you're looking for is -2

12 - 2×(n)= 8×4+(n)

12 - 2×(-2)=16

8×4+(-2)=16

True or false (Picture provided)

Answers

Hello!

The answer is: True.

Why?

A counterexample is a way that we can prove that something is not true about a mathematical expression or equation, it could be considered as an exception to a rule, so to check if the answer is true or false, we must prove that a counterexample of the given expression is 0°, so:

The given expression is:

[tex]sinytany=cosy[/tex]

Then,

[tex]sin(0)*\frac{sin(0)}{cos(0)}=cos(0)\\\\0*\frac{0}{1}=1\\\\0*0=1\\0=1[/tex]

We can see that the equation is not fulfilled, so 0° is a counterexample of [tex]sinytany=cosy[/tex] and the answer is true.

Have a nice day!

Which measurements could NOT represent the side lengths of a right triangle? * 1 point A. 6 cm, 8 cm. 10 cm B. 12 cm, 35 cm, 37 cm C. 4 cm, 6 cm, 10 cm D. 10 cm, 24 cm, 26 cm

Answers

Answer:

C. 4cm, 6cm, 10cm

Step-by-step explanation:

Is a ≤ b < c are the side lengths of a right triangle, then

[tex]a^2+b^2=c^2[/tex]

A. 6cm, 8cm, 10cm.

Substitute:

[tex]6^2+8^2=10^2\\36+64=100\\100=100\to TRUE[/tex]

B. 12cm, 35cm, 37cm.

Substitute:

[tex]12^2+35^2=37^2\\144+1225=1369\\1369=1369\to TRUE[/tex]

C. 4cm, 6cm, 10cm.

It's not the side lengths of a triangle, because 4 + 6 = 10.

Without looking at it, we will check equality

[tex]4^2+6^2=10^2\\16+36=100\\52=100\to FALSE[/tex]

D. 10cm, 24cm, 26cm.

Substitute:

[tex]10^2+24^2=26^2\\100+576=676\\676=676\to TRUE[/tex]

The measurement that could not represent the side length of a right triangle is  4 cm, 6 cm, 10 cm.

What is a right triangle?

A right triangle is a triangle that consists of three sides. The longest side is the hypotenuse. The other sides are the base and the length. The sum of angles in a triangle is 180 degrees.

What is the Pythagoras theorem?

According to this theorem, the square of the hypotenuse should be equal to the sum of the square of the other two sides.

The Pythagoras theorem: a² + b² = c²

where:

a = length

b = base

c = hypotenuse

Which measurements do not represent the side lengths of the right triangle?

6² + 8² = 10²

36 + 64 = 100

Option B = 12² + 35

= √144 + 1225

= √1369

= 37

Option C = 4² + 6²

16 + 36

= √52

= 7.2

Option D: 10² + 24² = 26²

100 + 576

= √676

= 26

Please find attached an image of a right triangle. To learn more about Pythagoras theorem, please check: https://brainly.com/question/14580675

The temperature in frostville was at 50*F at midnight,and it dropped at a constant rate for the next 10 hours.

Answers

After 10 hours the temperature is shown on the graph as 30 degrees.

50 degrees - 30 degrees = 20 degrees.

The temperature dropped 20 degrees in 10 hours.

Divide the change by the time:

20 degrees / 10 hours = 2 degrees per hour.

Because the temperature dropped, the change would be negative.

The answer is D. -2 degrees per hour.

Can someone help me ? i have no clue how to figure this out

Answers

[tex] \cos t (\sec t - \cos t) = \sin^2 t [/tex]

[tex] \cos t (\dfrac{1}{\cos t} - \cos t) = \sin^2 t [/tex]

[tex] \dfrac{\cos t}{\cos t} - \cos^2 t = \sin^2 t [/tex]

[tex] 1 - \cos^2 t = \sin^2 t [/tex]

Use the identity: [tex] \sin^2 t + \cos^2 t = 1 [/tex] and solve for [tex] \sin^2 t [/tex]. You get: [tex] \sin^2 t = 1 - \cos^2 t [/tex]

Do the substitution on the left side to get:

[tex] \sin^2 t = \sin ^2 t [/tex]

[tex] \cos \: t ( \sec \: t - \cos \: t) = \sin^{2}t \\ \\ 1. \: 1 - \frac{ \cos \: t }{ \sec \: t } = \sin^{2} t \\ 2. \: 1 - \cos \: t \cos \: t = \sin^{2} t \\ 3. \: 1 - \cos^{2} t = \sin^{2} t \\ 4. \: 1 - \cos^{2} t - \sin^{2} t = 0 \\ 5. \: 1 - 1 = 0 \\ 6. \: 0 = 0 \\ 7. \: infinitely \: many \: solutions[/tex]

An amusement park ride has cars that move around a circular track at the rate of 16 revolutions in 20 seconds. To the nearest hundredth, the angular velocity of the cars is radians per second.

Answers

Answer:

[tex]5.03\frac{rad}{sec}[/tex]

Step-by-step explanation:

To find the angular velocity divide the revolutions by the time

so

[tex]\frac{16}{20}=0.8\frac{rev}{sec}[/tex]

Remember that

[tex]1\ rev=2\pi \ rad[/tex]

Convert rev/sec to rad/sec

[tex]0.8\frac{rev}{sec}=0.8*(2\pi)=1.6 \pi\frac{rad}{sec}[/tex]

assume [tex]\pi=3.1416[/tex]

[tex]1.6(3.1416)=5.03\frac{rad}{sec}[/tex]

Answer:

5.03

Step-by-step explanation:

What is the total number of digits required in numbering the pages of a book which has 53 pages?

Answers

Answer:

The total number of digits required in numbering the pages of a book that has 53 pages would be: 97.

Step-by-step explanation:

This answer would be 97 due to the first nine digits being singular.

The next 44 digits are double, so therefore, you multiply 44 by 2, and you end up with 88.

After that, you take 88 and add the 9, which, is 97 digits in total that you would need to number a 53 page book.

Need help with Geometry

Answers

Answer:

Answer: 56*pi

Step-by-step explanation:

The easiest way is to find the area of the circle and subtract the area of the sector.

Area of the circle

d = 16 cm              given

d = 2*r                   definition

16 = 2*r                  divide by 2

16/2 = 2r/2

r = 8

Area of the circle = pi * r^2

Area of the circle = pi * 8^2

Area of the circle = 64 pi

Area of the sector

Area of sector = (theta/360) * pi * r^2

Area of sector = 45/360 * pi * 64

Area of sector = 1/8 * pi * 64

Area of sector = 8 * pi

Area of the shaded area

Area of the shaded area = 64 * pi - 8*pi = 56*pi

Note: There is a shorter way, but one can never be confident of getting an angle greater than 180 correct.

360 - 45 = 315

Area of the sector = 315/360 * pi * r2

Area of the sector = 7/8 * pi * 64

Area of the sector = 7 * pi * 8

Area of the sector = 56*pi

Please help me out.............

Answers

Since the sides are equal the angels have to be equal too

5x-20=2x+37

3x=57

X=19

The rate of change of a bacteria (N) with respect to time is directly proportional to itself. When t=0, N=500. When t=4, N=3000. How many bacteria will be present when t=8?


Carbon-14 has a half-life of 5715 years. Find the rate of decay, if the initial amount of carbon-14 is 10 units.

Please explain (step by step is preferred)

Answers

Fine the average rate of change by the difference in N over the difference in T:

3000 - 500 / 4-0 = 2500 / 4 = 625

This means for every 1 T, N = 625.

Now multiply 625 by 8:

625 x 8 = 5000

When T = 8 N = 5,000

The decay rate can be found by dividing -ln(2) by the half life.

Decay rate = -ln(2) / 5715 = -0.00012

Fill in the blank to make the the equation true

__________ x 9/5 = -27

Answers

Answer:

-15

Step-by-step explanation:

Multiply the whole equation by the inverse of the multiplier of the blank. Then you get ...

___ × 1 = (-27)×(5/9) = -15

The blank filled with -15 will make the equation true.

We could represent the blank as a variable o make solving the equation easier.
Let’s make the variable x.
Our equation is now x9/5=-27
Now, divide both sides by 9/5 to isolate x.
(Hint, the decimal form of 9/5 is 1.8, so simply divide -27 by 1.8)
-27/1.8=-15
X=-15
Hope this helps!

Please help!!!
The area of the green square is 9 ft2. The area of the yellow square is 25 ft2.
What is the area of the red square (labelled "b" in the diagram)?

Answers

Answer:

the answer is 16Ft^2

Step-by-step explanation:

Square A's area is 9 so take its square root =3

then do the same for Square c =5

then use pythagram theory which is

3^2 + 5^2 = 4^2 = 16

Answer:

area = 16 ft²

Step-by-step explanation:

The area of the green square = 9 ft²

area of the yellow square = 25 ft²

Area of the red square can be computed as follows:

area of a square = L²

Since one side of each triangle forms a part of the triangle knowing the length of sides of the green and yellow triangle can be use to get the sides of the red square and invariably the area.

Green square

L² = 9

square both sides

√L² = √9

L = 3 ft

Yellow square

L² = 25

square both sides

√L² = √25

L = 5 ft

use Pythagoras theorem to get the third side of the triangle which is the b

c² = a² + b²

b² = c²  - a²

a = 3 ft

c = 5 ft

b² =  5² - 3²

b² = 25 - 9

b² = 16

square both sides

√b² = √16

b = 4

Red square

area = L²

area = 4²

area = 16 ft²

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