2) The cost of renting a boat for one or more
days is given by the function f(n)=12+20n,
where n = number of days and f(n) = total
cost in dollars.

What is the value of f(7-4)?=

Answers

Answer 1

Answer: 3f

Step-by-step explanation:


Related Questions

help help help it is simple one​

Answers

Answer:

[tex] 3^{ -x+3}[/tex]

Step-by-step explanation:

We need to simplify out the given exponential expression . The given expression to us is ,

[tex]\rm\implies \dfrac{\dfrac{1}{3}}{3^{x-4}} [/tex]

We can use the Law of Exponents to simplify the given expression . Recall that ,

[tex]\rm\implies \red{\dfrac{a^m}{a^n}= a^{m-n}}[/tex]

Note that , we can write ,

[tex]\rm\implies \dfrac{1}{3}= 3^{-1}[/tex]

Therefore our expression becomes ,

[tex]\rm\implies \dfrac{ 3^{-1}}{3^{x-4}}[/tex]

Simpify using the Law of Exponents ,

[tex]\rm\implies 3^{ -1 - ( x - 4 )}[/tex]

Open the brackets in exponent ,

[tex]\rm\implies 3^{ -1 - x +4 }[/tex]

Simplify to get final expression ,

[tex]\rm\implies \boxed{\quad \blue{ 3^{-x+3} \quad}}[/tex]

9 Alicia has a bag that contains 12 apples.
Estimate the mass of the bag of apples.
Give your answer in kilograms.

Answers

Answer:

The key here is estimate, you don't need exact values or more information for this problem. First estimate the mass of an average apple. A quick online search reveals that the mass of an average apple is approximately 100 grams. Multiply by 12 for the bag and convert to whatever units you're asked to express your answer in.

Step-by-step explanation:

DIVISON METHOD OF 527,646,1105​

Answers

Answer:

17 is the answer

Step-by-step explanation:

Y= 3x+6; (4,7) in slop intercept form

Answers

What we are given:

*equation

* intercepts (4,7)

All we have to do is plug in what we know:

Y= 3x + 6

x=4 and y= 7

NEW EQUATION:

7= 3(4) + 6

7= 12+6

7= 18

then divide 18 by 7

18/7= 2.5

Which graphs show functions with direct variation? select three options.

Answers

Answer:

the daily graphs

Step-by-step explanation:

the news paper

Answer:

B C E

Step-by-step explanation:

Please help out will give brainliest to the first person

Answers

Answer:

b = 74

Step-by-step explanation:

The exterior angle is equal to the sum of the opposite interior angles in a triangle

b-44 + b+18 = b+48

2b-26 = b+48

Subtract b from each side

2b-b-26 =b+48-b

b-26 = 48

Add 26 to each side

b-26+26 = 48+26

b =74

The graph of a quadratic function
displays output values that approach
negative infinity. What do you know
about the leading coefficient of this
function?
A
The leading coefficient is negative.
B
The leading coefficient is positive.

Answers

Answer:

A

The leading coefficient is negative.

Step-by-step explanation:

Quadratic equation:

A quadratic equation has the following format:

[tex]y = ax^2 + bx + c[/tex]

The leading coefficient is a.

a negative:

The graph of the function is concave down, that is, it displays values that approach  negative infinity.

a positive:

The graph of the function is concave up, that is, it displays values that approach  up infinity.

In this question:

Displays values that approach  negative infinity, so the leading coefficient is negative, and the correct answer is given by option A.

Answer:

B it's positive.. I went with negative because that's what it said, but it was wrong!

Step-by-step explanation:

HELP! (25 points) i think i might know the answer

Answers

Answer:

[tex]\sqrt{7}[/tex]

Step-by-step explanation:

Find the missing side of the right triangle

Answers

Answer:  125

Work Shown:

a^2 + b^2 = c^2

x^2 + 10^2 = 15^2

x^2 + 100 = 225

x^2 = 225 - 100

x^2 = 125

x = sqrt( 125 )

Which of the following expressions can be used to find x? Solve for x. Round to the nearest hundredth. A tan 28 = x32 ; x=17.01∘ B sin 28 = x32 ; x=15.02∘ C tan 28 = 32x ; x=60.18∘ D tan x= 2832; x=41.19∘

Answers

Answer:

B

Step-by-step explanation:

2) How much tax should be paid by a person having annual income RS 240.000?​

Answers

Answer:

What is the Existing / Old tax regime?

Income Range Tax rate Tax to be paid

Up to Rs.2,50,000 0 No tax

Between Rs 2.5 lakhs and Rs 5 lakhs 5% 5% of your taxable income

Between Rs 5 lakhs and Rs 10 lakhs 20% Rs 12,500+ 20% of income above Rs 5 lakhs

Above 10 lakhs 30% Rs 1,12,500+ 30% of income above Rs 10 lakhs

Kristen and Stephen share some money on the ratio 3:2 Kristen receives $72. How much will Stephen receive​

Answers

Answer:

$48

Step-by-step explanation:

A ratio of 3:2 could be $3 and $2, or any multiple of 3 and 2 such as $6 and $4. Kristen corresponds to $3 and receives $72.

$72/$3 = x/$2

3x = 2 * $72

3x = $144

x = $48

Answer: $48

Answer:

$48

Step-by-step explanation:

Since we are given the ratio 3:2 we can use that with the given number to find our missing amount

first, we divide 72 by 3 to find  what 1/3 will be 72/3 = 24

Then, we multiply by 2 to find our missing amount 24 * 2 = 48

The melting point of mercury is about 1/4 of the melting point of krypton. The melting point of mercury is -39c. Write and solve an equation to find the melting point of krypton.

Answers

Answer:

-156c

Step-by-step explanation:

[tex]\frac{1}{4}[/tex] of krypton melting point is mercury melting point

[tex]\frac{1}{4}[/tex](k) = -39

k = -39(4)

k = -156c

Currently, Mike is 8 years more than twice Tom's age. In 3 years from now,
Mike's age
will be three times Tom's age. What are their current ages?

Answers

Answer:

The current age of Mike is 12 years old while that of Tom is 2 years old.

Step-by-step explanation:

Let the current age of Mike be m years old and that of Tom be t years old.

Currently

m= 2t +8

3 years from now

Tom's age= t +3

Mike's age

= m +3

= 2t +8 +3

= 2t +11

Given that in three years, Mike's age is 3 times Tom's age,

2t +11= 3(t +3)

Expand:

2t +11= 3t +9

3t -2t= 11 -9

t= 2

Current age of Mike

= 2t +8

= 2(2) +8

= 4 +8

= 12


Add. State the sum in simplest form.
6/5x + 7/3y

Answers

Answer:

6x/5 + 7y/3

Step-by-step explanation:

Answer:

3.53xy

Step-by-step explanation:

I’m probably wrong but give it a try I think

What is the remainder when (x^3 + 1) is divided by (x^2 – x + 1)?
O x +1
Ο x
O 2
Ο 0

Answers

Answer:

The answer is 0 .... solution is X+1 the REMAINDER IS 0

Step-by-step explanation:

The remainder when (x³ + 1) is divided by (x² - x + 1) is 0.

The correct option is D.

What is a polynomial?

An expression that consists of variables, constants, and exponents that are combined using mathematical operations like addition, subtraction, multiplication, and division is referred to as a polynomial.

We can use polynomial long division to find the remainder of (x³ + 1) divided by (x² - x + 1):

                 x + 1

                 -------------

x² - x + 1 | x³ + 0x² + 0x + 1

              - (x³ - x² + x)

               ---------------

                      x² - x + 1

                   - (x² - x + 1)

                      -------------

                      0

Therefore, the remainder when (x³ + 1) is divided by (x² - x + 1) is 0.

To learn more about Polynomials;

brainly.com/question/11536910

#SPJ7

Does the function ƒ(x) = 5e0.25x represent exponential growth, decay, or neither?

Answers

Step-by-step explanation:

it is exponential growth because the coefficient of x is not negative

the evidence is in the image above

the gradient increases

Someone plz help me and show the work 10 points!

Answers

Answer: 76 degrees

In order to solve for the ? Angle you can use inverse tangent with our given sides
The original equation for inverse tangent is tan^(angle)=opposite/hypotenuse, so plug the values in, and isolate the angle by dividing tangent. Then solve on a calculator and let x=?; tan^-1(40/10) which is equal to 75.96375653 which is approximately 76 degrees

Answer:

78°

Step-by-step explanation:

you have to add it up and then divide after multiply

Tom wants to borrow $16,578 for a car. The bank is going to charge him 12% interest annually, compounded monthly. If his car payment is $345.00 a month. How much will he owe at the end of 4 months? (Take this one month at a time. Determine the interest for the month; add it to the principal. Then subtract the payment, and that is your new principal for the next month.)​

Answers

Answer:

Step-by-step explanation:

Principal, P = $16,578

Interest rate, r = 12% = 0.12

Monthly interest rate = annual interest rate / 12

= 12%/12

= 1%

= 0.01

Time, t = 1 year

Number of period, n = 12

Car payment per month = $345.00

Month 1:

A = P(1 + r/n)^nt

A = 16,578(1 + 0.01/12)^(12)(1)

A = 16,578(1 + 0.000833333)^(12)

= 16578(1.000833333)^12

= 16578(1.0100459608871)

A = $16,744.54

Principal after month 1 repayment = $16,744.54 - $345

= $16,399.54

Month 2:

A = P(1 + r/n)^nt

= $16,399.54(1 + 0.01/12)^(12)(1)

= 16,399.54(1 + 0.000833333)^(12)

= 16,399.54(1.000833333)^12

= 16399.54(1.0100459608871)

= 16,564.289137406431934

= $16,564.29

Principal after month 2 repayment = $16,564.29 - $345

= $16,219.29

Month 3:

A = P(1 + r/n)^nt

= $16,219.29(1 + 0.01/12)^(12)(1)

= 16,219.29(1 + 0.000833333)^(12)

= 16,219.29(1.000833333)^12

= 16219.29(1.0100459608871)

= 16382.228352956532159

= $16,382.23

Principal after month 3 repayment = $16,382.23 - $345

= $16,037.23

Month 4:

A = P(1 + r/n)^nt

= $16,037.23(1 + 0.01/12)^(12)(1)

= 16,037.23(1 + 0.000833333)^(12)

= 16,037.23(1.000833333)^12

= 16037.23(1.0100459608871)

= 16198.339385317426733

= $16,198.34

Principal after month 4 repayment = $16,198.34 - $345

= $15,853.34

Johnny can build 3 1/2 lego planes in 60 minutes. How many can he build in 40 minutes? Simplify answer completely

Answers

Answer:

2 [tex]\frac{1}{3}[/tex] planes

Step-by-step explanation:

Set up a ratio.

planes over time.

Because the time is given in minutes. No conversion necessary.

[tex]\frac{planes}{time}[/tex] = [tex]\frac{3.5}{60}[/tex] = [tex]\frac{x}{40}[/tex]

Cross Multiply

60 (x) = 3.5 (40)

60x = 140      Divide by 60, both sides.

x = 2.333 repeating also know as 2 [tex]\frac{1}{3}[/tex].

A cone has a volume of 150 cm cubed and a base with an area of 12 cm square. What is the height of the cone?

(I'm asking this again :') No one answered it.)
P.S Its 30 Points now
SO PLEASE HELPPP tyyyy :)

Answers

Answer:

37.5cm

Step-by-step explanation:

V=1/3Bh

150=1/3 12h

150=4h

37.5=h

The height of the cone is 37.7.
Calculation method: area of circle = pi x r^2
Square root(12/3.14) =r
r = 1.95
h = 3 x 150/pi * r^2
h= 450/pi * 1.95^2
h = 143.31/3.8
h = 37.7

Grant is a member of a book club. He pays a $10 yearly membership fee and can purchase books through the club for $2.75 each. His total annual cost is a function of the number of books that he purchases in a year. Let b represent the number of books he purchases in a year. Which function, C(b), represents his yearly cost

Answers

C(b) = 2.75b + 10

This is based of the f(x) = mx + b formula, where m is the slope, x is the variable (or input) and b is the y intercept. In this circumstance the slope is 2.75, so we change m for 2.75. The variable is the amount of books so we change it for b (like it says in the word problem), and and 10 is the starting cost, so it’s the y intercept, so we change b for 10.


Hope this helps! Please make me the brainliest, it’s not necessary but appreciated, I put a lot of effort and research into my answers. Have a good day, stay safe and stay healthy.

Write the y-intercept of the line

Answers

Answer: -2. Bc if you look on the graph of the y axis you'll see its located at -2.

Hope this helps :)

Step-by-step explanation:

Given JIH~ LMN. what is the value of LN?

Answers

Answer:

7 units

Step-by-step explanation:

In similar triangles, corresponding sides are same ratio.

[tex]\frac{LN}{JH}=\frac{LM}{JI}\\\\\frac{LN}{14}=\frac{5}{10}\\\\LN=\frac{5}{10}*14\\\\LN=7[/tex]

Factor x4 – 81. Question 20 options: A) (x2 + 3)(x2 – 3) B) (x2 – 9)(x + 3)(x – 3) C) (x2 + 9)(x + 3)(x – 3) D) (x + 3)2(x – 3)2

Answers

Answer:

C is correct

Step-by-step explanation:

A square minus a square can always be factored into the square root of the 1st term plus and minus the square root of the 2nd term. So

x**4 - 81 = (x**2 + 9)(x**2 -9) = (x**2 + 9) (x + 3)(x - 3)

plzzz helppp will mark brainlest stpps plzz if possible

Answers

Answer:

c.

Step-by-step explanation:

Law of sines

[tex]\frac{Sin A}{a}[/tex] = [tex]\frac{Sin B}{b}[/tex]

A and B are angles.

a and b are sides opposite corresponding angles.

20-(+20)-(-65)-(-12)​

Answers

Answer:

77

Step-by-step explanation:

20-(+20)-(-65)-(-12)​

-(-65)-(-12)​

+65-(-12)​

+65+12

77​

Q) 20-(+20)-(-65)-(-12) = ?

→ 20-(+20)-(-65)-(-12)

→ 20 - 20 + 65 + 12

→ {20 - 20} + {65 + 12}

→ 0 + 77

→ 77 is required solution.

At a homecoming pep rally, one student will win free tickets to the homecoming dance. There are 2,400 students attending the pep rally. The student council wants to pull the winning student’s name from a container with the school’s mascot on it. Unfortunately, the container only holds 600 names.

Which method can the student council use to ensure each student has a fair chance of winning?

A.
Randomly assign the 2,400 students to four equal groups. Select a group at random and put all the names from that group in the container. Randomly select the winner from the container.
B.
Put the names of the first 600 students who arrive at the pep rally in the bag. Randomly select the winner from the container.
C.
Select a section of the bleachers and only put the names of students sitting in that section in the container. Randomly select the winner from the container.
D.
Select a grade and only put the names of students from that grade in the container. Randomly select the winner from the container.

Answers

Answer:

A

Step-by-step explanation:

Answer A. Logically speaking there is no fair chance unless they use all the names but we can rule out C by the higher chance of students crowding, B is less likely as selecting winners from students who arrive first would be nearly the same as who bought their tickets first. D, selecting a grade excludes (estimating) around 1500 students or more from being included. A is the only logical answer left and by dividing them randomly you give everyone a full chance.

Which system is equivalent to y=-2x^2 y=x-2

a) y=-2y^2 x=y-2
b) y=-2y^2+2 x=y+2
c) y=-2y^2-8y-8 x=y+2
d) y=-2y^2+8y-8 x=y-2

Answers

Answer:

answer C

Step-by-step explanation:

[tex]\left\{\begin{array}{ccc}y&=&-2x^2\\y&=&x-2\\\end{array}\right.\\\\\\\left\{\begin{array}{ccc}x&=&y-2\\y&=&-2(y-2)^2\\\end{array}\right.\\\\\\\left\{\begin{array}{ccc}x&=&y-2\\y&=&-2y^2-8y-8\\\end{array}\right.\\\\[/tex]

Help me pls‼️‼️‼️❤️❤️

Answers

Answer:

= 50%

Step-by-step explanation:

There is one point, random number = 1

There are two circles, sample space = 2

[tex]{ \tt{probability = \frac{1}{2} }} \\ { \tt{percentage = \frac{1}{2} \times 100\% }} \\ = 50\%[/tex]

Answer:

25%

Step-by-step explanation:

1. Find the area of both Circles: [tex]A = \pi r^{2}[/tex] [tex]A = \pi 2^{2}[/tex] = [tex]4\pi[/tex]   [tex]A = \pi 1^{2} = \pi[/tex]

2. [tex]\frac{\pi }{4\pi }[/tex] to find the percentage

3.  0.25 = 25%

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