Evaluate k(4) for the function k(x)=18−2x

Answers

Answer 1

Answer:

k(4) = 10

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

Brackets Parenthesis Exponents Multiplication Division Addition Subtraction Left to Right

Algebra I

Function Notation

Step-by-step explanation:

Step 1: Define

k(x) = 18 - 2x

k(4) is x = 4

Step 2: Evaluate

Substitute in x:                    k(4) = 18 - 2(4)Multiply:                               k(4) = 18 - 8Subtract:                              k(4) = 10

Related Questions

Original price:$23.99;markdown 30%
A)$7.20
B)$16.79
C)$31.19
D)$15.80
Thank you!

Answers

Maybe the answer is A

Answer:

B

Step-by-step explanation:

Multiply the original price by 0.7

23.99 * 0.7 = 16.79

maybe a few more lol

Answers

Answer:

Thanks, check out my music please. Its Colter Wall on yt

Step-by-step explanation:

Answer:

thx for the 50 points

Can anyone help me with this question? Thank you!

Answers

I agree the best option is B.)

Owen is signing up for a gym membership with a one-time fee to join and then a
monthly fee to remain a member. The one-time fee to join the gym is $100 and the
total cost of membership, including the joining fee, would be $200 for 2 months.
Write an equation for C, in terms of t, representing the total cost of the gym
membership over t months.

Answers

The cost of the monthly fee is 50$.. if the joining fee is 100.. take 200 and subtract that fee since it is included in the total. You’re left with 100. Note, the 200 is calculated for a 2 month period, so split the remaining 100 ,from the total 200, into 2. You’re left with 50 each month.

T=(C-100)/2 (T being 1 month) (C being the total cost/200)

Hopefully

Which three-dimensional shape is created when the rectangle is rotated around axis r?

Answers

Answer: rectangular prism

Step-by-step explanation:

It takes about 14 person-hours of labor to break up a driveway and clear away the rubble. It takes about 8 person-hours of labor to pour and smooth concrete for the new driveway.

Answers

Answer: 22 person-hours

Step-by-step explanation:

It takes 14 hours to break up the driveway and then to clear away the rubble.

Then it takes 8 hours to pour the concrete and smooth it.

Total time it will take to break up a driveway, clear away the rubble, pour the concrete, and smooth the concrete will therefore be;

= 14 + 8

= 22 person-hours

Is 5-2y=3x a linear equation

Answers

5-2y=3x divide one both sides
5-2y/3=x
Switch the sides
X=5-2y/3
Download Cymath and they will have the answer

Answer:

Yes

Step-by-step explanation:

Plsss help meeee :))

Answers

Answer:

i think 6(k)^2 ?

Step-by-step explanation:

Answer:we have the same question

I know this not help but yea

PLEASE HELP !!!!!!!!!!!!!!! idk if this is correct or not !!!!!!! WILL MARK BRIANLIEST !!!!

Answers

Answer: It should have been correct.

Step-by-step explanation:

What is the first step in solving a proportion?
A - Cross multiply
B - Divide

Answers

Answer:

a

Step-by-step explanation:

1.cross multiplication

MARK ME BRAINELIST

Dr. Stevens mixed 10.357 grams of chemical A, 12.062 grams of chemical B, and 7.506 grams of chemical C to make 5 doses of medicine. a. About how much medicine in grams? Estimate the amount of each by rounding to the nearest tenth of a gram before finding the sum. Show your thinking. b. Find the exact amount of medicine mixed by Dr. Stevens. c. What is the difference between the exact amount and the estimated amount of medicine? d. How many grams are in one dose of medicine? Explain your strategy for solving.

Answers

Answer:

A. 29.93 grams

B. 29.925 grams

C. 0.005 grams

D. 5.985 grams per dose

Step-by-step explanation:

Chemical A = 10.357 grams

Chemical B = 12.062 grams

Chemical C = 7.506 grams

Number of doses of drugs = 5

A. About how much medicine in grams

Round each chemical to the nearest tenth

Chemical A = 10.36 grams

Chemical B = 12.06 grams

Chemical C = 7.51 grams

Total medicine in grams = chemical A + chemical B + chemical C

= 10.36 + 12.06 + 7.51

= 29.93 grams

B. Find the exact amount of medicine mixed by Dr. Stevens.

Total medicine in grams = chemical A + chemical B + chemical C

= 10.357 + 12.062 + 7.506

= 29.925 grams

C. What is the difference between the exact amount and the estimated amount of medicine

Difference = Estimated amount - Exact amount

= 29.93 grams - 29.925 grams

= 0.005 grams

D. How many grams are in one dose of medicine?

Grams in a dose = exact amount of chemicals / 5 doses

= 29.925 grams / 5

= 5.985 grams per dose

Approximately 5.99 grams per dose

Helppppppppppppppppppp

Answers

Answer:

1/8^4

Step-by-step explanation:

when divinding exponents with the same base, subtract the power. you get 8^-4. since the problem specifies no negative exponents you need to simplify. this give you 1/8^4

What is the quotient of 2/3 divided by 4 in simples form

Answers

Answer:

2/12 is equivalent fraction for 2/3 divided by 4

Step-by-step explanation:

2

3

&

4

2

3

÷

4= ?

step 2 Multiply 2/3 with reciprocal of 4

=2

3

x1

4

=2

12

The Quotient is 1/3.

What is Division?

One of the four fundamental mathematical operations, along with addition, subtraction, and multiplication, is division. Division is the process of dividing a larger group into smaller groups so that each group contains an equal number of things.

Given:

2/3 divided by 4

As, division is not possible in fraction so we will perform the multiplication

= 2/3  ÷ 4

= 2/3 x 1/4

= 2/6

= 1/3

Learn more about Division here:

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Mindy bought 1¾ pounds of candy for herself and for each of three friends while she was at the candy store. How many pounds of candy did she buy?

Answers

Answer:

Mindy bought 7 pounds of candy.

Step-by-step explanation:

In order to solve this question we need to understand that based on the question itself there is 4 people (Mindy and the three friends) that each have [tex]1\frac{3}{4}[/tex] pound of candy. Now if you image in that way you see that in order to understand how much pounds of candy Mindy bought you will have to multiply [tex]1\frac{3}{4}[/tex] by 4 (because there is 4 people who got [tex]1\frac{3}{4}[/tex]  pounds of candy each).

So now we can find the answer by doing the following.....

[tex](1\frac{3}{4} )(4) = ( \frac{7}{4})(\frac{4}{1}) = \frac{(7)(4)}{(4)(1)} = \frac{28}{4} = 7[/tex]

Someone please help me I’m really struggling
I will give brainliest

Answers

Answer:

SA ≈ 1134 cm²

General Formulas and Concepts:

Math

Pi π = 3.14...

Pre-Algebra

Order of Operations: BPEMDAS

Brackets Parenthesis Exponents Multiplication Division Addition Subtraction Left to Right

Geometry

Radius: r = d/2Surface Area of a Sphere: SA = 4πr²

Step-by-step explanation:

Step 1: Define

d = 19 cm

Step 2: Find SA

Substitute [R]:                    r = 19 cm/2Divide:                                r = 9.5 cmSubstitute [SAS]:               SA = 4π(9.5 cm)²Exponents:                        SA = 4π(90.25 cm²)Multiply:                             SA = 361π cm²Multiply:                             SA = 1134.11 cm²Round:                               SA ≈ 1134 cm²

6 pounds of apples and 3 pounds of oranges cost 24 dollars.5 pounds of apples and 4 pounds of oranges cost 23 dollars. Set up a system of equations and solve to find out the cost for each pound of apples and each pound of oranges.

Answers

Answer:cost of each pound of apple= $3

And cost of each pound of orange =$2

Step-by-step explanation:

Step 1

Let cost of apples = x

And cost of Oranges =y

Let 6 pounds of apples and 3 pounds of oranges cost 24 dollars be represented as

6 x + 3y= 24----- equation 1

Also, Let 5 pounds of apples and 4 pounds of oranges cost 23 dollars be represented as

5x+ 4y= 23----- equation 2

Step 2

6 x + 3y= 24----- equation 1

5x+ 4y= 23----- equation 2

Using substitution method to solve the equation

6 x + 3y= 24

24-6x=3y

y= 24-6x/3 = 8-2x

Y= 8-2x

Substituting the value of y= 8-2x  into equation 2

5x+ 4( 8-2x)= 23

5x+ 32 -8x= 23

32-23= 8x-5x

9=3x

x=9/3

x=3

Putting the value of x= 3 in equation 1 and solving to find y

6 x + 3y= 24

6(3) +3y= 24

18+3y=24

3y= 24-18

3y=6

y=6/3= 2

Therefore the cost of each pound of apple= $3

And cost of each pound of orange =$2

I need help it’s for math!!!

Answers

Answer:

anybody agree that its c

Step-by-step explanation:

Which expression is equal to 6^4? 10
24
4^6
6⋅6⋅6⋅6

Answers

Answer:

6⋅6⋅6⋅6

Explanation: The  exponent refers to the number of times a number is multiplied by itself.  6^4 represents that 6 is being multiplied 4 times.

[tex]6^{4}[/tex]

Base ⇒ 6

Exponent ⇒ 4

PLEASE HELP MEEEEE WILL GIVE BRAINLIST IF ANSWERED!!!!! HELPPPPP!!!!!
n + (-5.6) = 6.3

n =

Answers

Answer:

n= 11.9

Step-by-step explanation:

2568283838383u2568283838383ui3ei33i

Answer:

[tex] \underline{ \boxed{n = 11.9}}[/tex]

Step-by-step explanation:

[tex]i f \to \: n + (-5.6) = 6.3 \\ n = 6.3 + ( + 5.6) \\ n = 11.9[/tex]

♨Rage♨

6.4 divided by 208 What is the quotient for the equation above?

Answers

Answer:

0.030769

Step-by-step explanation:

The Medina's went out to eat at Chili's. If there bill was 65.20 and they gave 1p
their server a 15% tip, how much did they leave for a tip? *

Answers

Answer:

The Medinas left $9.78 for a tip

Step-by-step explanation:

Percentages

The Medinas went out to eat at Chilli's and the bill was $65.20. They tipped 15% to their server.

This percentage is calculated over the amount of the $65.20 bill, thus the tip was:

15% of 65.20 = 15/100 * $65.20 = $9.78.

The Medinas left $9.78 for a tip

In ΔDEF, the measure of ∠F=90°, the measure of ∠D=66°, and EF = 32 feet. Find the length of FD to the nearest tenth of a foot.

Answers

Answer:

14.3

Step-by-step explanation:

Remark

Make a rough sketch of the triangle.

Make F the right angle

Make <D = 66

E is the other angle.

Givens

EF = 32

<F = 90

<D = 66

Equation

Tan(D) = EF/FD

Solution

Tan(66) = 32/FD                  Multiply both sides by FD

FD*Tan(66) = 32            

Tan(66) = 2.246

2.246 * FD = 32                  Divide by 2.2246

FD = 32/2.246

FD = 14.25

FD = 14.3

PLEASEEEEEEE HELPPPPPPPP!!

Answers

Answer:

Step-by-step explanation:

hi

what is the measure of angle A in the triangle ​

Answers

2x+4+3x-13+180-116=180
5x+4-129=0
5x=125
x=25
A=3x-13=75-13=62
Okay so we know a straight line is equal to 180 degrees, so first thing to do is subtract 180 by 116 to get angle C
C = 64

then we know all the angles in a triangle add up to 180 also
so we can do 64 + (2x + 4) + (3x - 13) = 180

combine like terms:
55 + 5x = 180

solve: x = 25

plug this back into the equation for angle A:
2(25) + 4

A = 54

The average number of people who attended football games at a stadium increased from 8,000 people in the year 2005 to 12,500 in the year 2012. By what percentage did the average number of people at the games increase from 2005 to 2012?

Answers

The answer is 43.75, just to reassure anyone who needs the answer to this (I took the test).

56.1% is the average number of people at the games increase from 2005 to 2012

What is Percentage?

percentage, a relative value indicating hundredth parts of any quantity.

Given,

The average number of people who attended football games at a stadium in 2005 is 8000.

The average number of people who attended football games at a stadium in 2012 is 12500.

The difference from average number of people from 2005 to 2012

12500-8000

Twelve thousand five hundred minus eight thousand

4500

To find the percentage of increase we need to divide change in number by original number

4500/8000

0.561

Now multiply with 100 because it is a hundredth part.

0.561×100=56.1

Hence 56.1% is the average number of people at the games increase from 2005 to 2012

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help (S.O.S) 10 points

Answers

the answer is: 9 because if u set both sides equal to one another the sum of the right side is 4 so the left should be 4 as well 13-9 = 4

2(3v-5)=2(v-11)-4 can someone help me out ?


Answers

Answer:

v = -4

Step-by-step explanation:

2(3v - 5) = 2(v - 11) - 4

6v - 10 = 2v - 22 - 4

     +10          +10

6v = 2v -12 - 4

-2v   -2v

4v = -16

divide both sides by 4

v = -4

Hope this helps!!

The value of v = - 4.

We have the following equation -

2(3v - 5) = 2(v - 11) - 4

We have to find out the value of the variable v.

What is the solution of a equation in one variable?

The solution of an equation is the value of variable for which the left hand side is equal to right hand side.

We have the following equation -

2(3v - 5) = 2(v - 11) - 4

2 x 3v - 2 x 5 = 2v - 2 x 11 - 4

6v - 10 = 2v - 22 - 4

6v - 10 = 2v - 26

6v - 2v = - 26 + 10

4v = -16

v = - 4

Hence, the value of v = - 4.

To solve more questions on finding unknown variable, visit the link below-

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Can someone please help me with these? I will give you the brainliest answer and also give extra points! I really need help :(​

Answers

Answer:

1. No solution

2. Infinite many solutions

3. One solution

4. No solution

5. No solution

6. One solution

7. No solution

8. One solution

9. Infinite many solutions

10. Infinite many solutions

Step-by-step explanation:

how many edges does a rectangle have

Answers

Rectangle have four edges.

What is 15/20 simplest form

Answers

Answer:

the simplest form of 15/20 is 3/4

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