What is the value of "k" in the function f(x) = 112 - kx if f(-3) = 121

Answers

Answer 1
If f(x)=112 -kx and f(-3)= 121, that means

112-k(-3)=121

112+3k=121

3k=9

k=3

Related Questions

Help. I don't understand what I'm supposed to do.

Answers

Just order the people from least to greatest time. So it would be Cindy, Beth, Ari.

Cindy, Beth, then Ari

Bruce has a 16 ounces bottle of water that is 1/2 full. He drinks 1/5 of the water left in the bottle. How many ounces of water are left in the bottle

Answers

Answer:

6.4 oz are left.

Step-by-step explanation:

Start with the bottle being half full.

A bottle that is half full when it started with 16 oz is 1/2 16 oz = 8 oz

If he drinks 1/5 of the remaining amount, it means that he has 4/5 left.

4/5 * 8 = 32/5 = 6.4 oz or 6 oz and 2/5 of an ounce.

Answer:

6.4 oz are left


Step-by-step explanation:


How to solve this for x ?

Answers

[tex]4+\dfrac{3}{5}\left(15+2x\right)=25\\\\\dfrac{3}{5}\left(15+2x\right)=21\\\\15+2x=35\\\\2x=20\\\\x=10[/tex]

10 times as much as 2000 is 1/10 of

Answers

10x2000 is 20,000 1/10 of 20,000 is 2,500.
The answer is 2,500
Hope this helped ❤️

Write an equation to solve:

1. A scuba diver dives down 20 feet in the ocean. He then swims 11 feet back up towards the surface. What is the position of the scuba diver relative to the surface?

2. You and your friend play a video game. You have a final score of 40 points, and your friend has a final score of -21 points. By how many points did you win?

Answers

1. 9 feet revelent to the surface

2. 19 points

Answer: 1. 9 feet revelent to the surface2. 19 points

Step-by-step explanation:

In a science experiment, the temperature of a substance is changed from 42 °F to −54 °F at an average rate of −12 degrees per hour. Over how many hours does the change take place?


A 8 hours B
1
8
hour
C −8 hours D 1 hour

Answers

Remark

There are a couple of ways to do this. The easiest is to take the number of degrees between 42 and - 54 and divide by 12.

Method

the number of degrees is abs(42) + abs(-54) = 42 + 54 = 96

Now divide by 12

Hours = 96 / 12 = 8 hours. I think the answer is A.

Answer:

Its 8hrs

Step-by-step explanation:

Can a pair of numbers have more than one common factor?
Explain Why

Answers

Because the higher the number, tho more numbers it can be multiplied by.

Make t the subject of the formula

v = u + 5t

Answers

[tex]v = u + 5t\\\\5t=v-u\\\\t=\dfrac{v-u}{5}[/tex]

Final answer:

To make t the subject of the formula v = u + 5t, subtract u from both sides and divide by 5.

Explanation:

To make t the subject of the formula v = u + 5t, we need to isolate t on one side of the equation.

First, subtract u from both sides of the equation: v - u = 5t.

Then, divide both sides of the equation by 5: (v - u)/5 = t.

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EL PERIMETRO DELCUADRADO X ES DOS TERCIOS DEL PERIMETRO DEL CUADRADO Y. EL UCADRADO Y ES DOS TERCIOS DEL PERIMETRO DEL CUADRADO Z. EL AREA DEL CUADRADO X ES DE 16 CM2 ¿CUAL ES AREA DEL CUADRADO Z?

Answers

the question in English is

THE SQUARE PERIMETER X IS TWO THIRDS OF THE SQUARE PERIMETER Y. THE PERIMETER OF THE SQUARE Y IS TWO THIRDS OF THE PERIMETER OF THE SQUARE Z. THE AREA OF THE SQUARE X IS 16 CM2 WHAT IS THE AREA OF THE SQUARE Z?

Let

Px--------> the perimeter of square x

Py--------> the perimeter of square y

Pz--------> the perimeter of square z

Ax--------> the area of square x

Az--------> the area of square z

Step 1

Find the length side of the square x

we know that

[tex]Px=\frac{2}{3} Py[/tex] -------> equation A

[tex]Py=\frac{2}{3} Pz[/tex] -------> equation B

[tex]Ax=16\ cm^{2}[/tex]

[tex]Ax=x^{2}[/tex]

so

[tex]x^{2}=16[/tex]

[tex]x=4\ cm[/tex]

Step 2

Find the perimeter of square x

[tex]Px=4x[/tex]

substitute the value of x in the formula

[tex]Px=4*4=16\ cm[/tex]

Step 3

Find the perimeter of square y

use the equation A

[tex]Px=\frac{2}{3} Py[/tex]

solve for Py

[tex]Py=\frac{3}{2} Px[/tex]

substitute the value of Px

[tex]Py=\frac{3}{2}16=24\ cm[/tex]

Step 4

Find the perimeter of square z

use the equation B

[tex]Py=\frac{2}{3} Pz[/tex]

solve for Pz

[tex]Pz=\frac{3}{2} Py[/tex]

substitute the value of Py

[tex]Pz=\frac{3}{2} 24=36\ cm[/tex]

Step 5

Find the area of square z

we know that

the area of the square z is equal to

[tex]Az=z^{2}[/tex]

Find the length side of square z

[tex]Pz=4z[/tex]

[tex]Pz=36\ cm[/tex]

so

[tex]4z=36[/tex]

[tex]z=9\ cm[/tex]

substitute the value of z in the area's formula

[tex]Az=9^{2}=81\ cm^{2}[/tex]

therefore

the answer is

the area of the square z is [tex]81\ cm^{2}[/tex]


Which expression is equivalent to ^3 square root 343 x^9 v^12 z^6?

Answers

[tex]\sqrt[3]{343x^9v^{12}z^6}=\sqrt[3]{343}\cdot\sqrt[3]{x^{3\cdot3}}\cdot\sqrt[3]{v^{4\cdot3}}\cdot\sqrt[3]{z^{2\cdot3}}\\\\=\sqrt[3]{7^3}\cdot\sqrt[3]{(x^3)^3}\cdot\sqrt[3]{(v^4)^3}\cdot\sqrt[3]{(z^2)^3}=7x^3v^4z^2\\\\Used:\\\\\sqrt{ab}=\sqrt{a}\cdot\sqrt{b}\\\\(a^n)^m=a^{nm}\\\\\sqrt[n]{a^n}=a[/tex]

Final answer:

The cube root of 343 is 7, x^9 is x^3, v^12 is v^4, and z^6 is z^2. So the equivalent expression to the cube root of [tex]343x^9v^12z^6[/tex] is 7x^3v^4z^2.

Explanation:

The expression is asking for the cube root of each term. The cube root of 343 is 7 because [tex]7*7*7[/tex]equals to 343. The cube root of x^9 is x^3 because 3*3 equals to 9. Similarly, cube root of v^12 is v^4 because 4*3 equals 12, and cube root of z^6 is z^2 because 2*3 equals 6.

So the equivalent expression is [tex]7x^3v^4z^2.[/tex]

Remember, when dealing with cubic roots and exponential terms, we divide the exponent by 3.

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Please help...

If g(x) = x2 + 2, find g(3).

A: 9

B: 8

C: 11

D: 6

Answers

As the [tex] g(x)=x^{2}+2[/tex]

To find the value of g(3) we have to put the value of [tex]x[/tex] equal to 3 everywhere in g([tex]x[/tex])

Therefore [tex] g(3)=(3)^2+2[/tex]

on solving the equation

[tex]g(3) = 9+2 [/tex]

[tex] g(3) = 11 [/tex]

Hence g(3) =11 is the answer


Hope this will help


here are the first four terms of an arithmetic sequence: 6,13,20,27 write down, in terms of n, an expression for the nth term of this sequence

Answers

common differences d = 7

A1 = 6

arithmetic sequence:

A(n)  = A1  + d(n - 1)

A(n) = 6 + d(n - 1)

Hope it helps

Renata wins a $20 gift card to an online music site. After Renata purchases 16 songs, the gift card has a remaining balance of $0. Which equation represents the relationship between y, the remaining balance on Renata’s gift card, and x, the number of songs purchased?

4x + 5y = –100
5x + 4y = 80
4x + 5y = 16
5x + 4y = 20

Answers

From reading the problem we see that y = 0 and x = 16.
To find the correct equation, simple plug in the values for x and y for each equation and see which equation is true.

The correct answer is 5x + 4y = 80


5(16) + 4(0) =80
80 + 0 = 80
80 = 80

Answer:

5x + 4y = 80

Step-by-step explanation:

The hard drive on your computer has a capacity of 160 gigabytes (GB). You have used 122 GB. You want to save some home videos to your hard drive. What are the possible sizes of the home video collection you can save? If u represents the amount of space used, write an inequality that determines a, the amount of space available.

Answers

Final answer:

To determine the size of the home video collection one can save, subtract the used space (122 GB) from the total hard drive capacity (160 GB). The remaining space is 38 GB, which is the maximum size for the home videos that can be saved. The inequality representing the available space in terms of 'a' is: a ≤ 38 GB.

Explanation:

The subject of this question is a practical application of mathematics related to computer storage space.

If the computer's hard drive has a total capacity of 160 GB and you have already used 122 GB, we can determine the remaining available space with a simple subtraction: 160 GB - 122 GB = 38 GB.

So, the size of the home video collection that you can save cannot exceed 38 GB.

To represent this as an inequality where u is the amount used, and a is the amount available, we can write:

u + a ≤ 160 GB

Since you've used 122 GB already, the inequality in terms of a alone is:

a ≤ 160 GB - 122 GB

a ≤ 38 GB

This inequality states that the amount of additional data (home videos) you can save, denoted as a, should be less than or equal to 38 GB, which is the available space remaining on your hard drive.

Final answer:

To determine the available space on your hard drive, subtract the amount used from the total capacity. The possible sizes of the home video collection you can save range from 0GB to a maximum of 38GB. The inequality a ≤ 38GB represents the amount of space available.

Explanation:

To determine the amount of space available, you subtract the amount of space used from the total capacity. In this case, the total capacity is 160GB and the amount used is 122GB, so the amount of space available is 160GB - 122GB = 38GB.

Therefore, the possible sizes of the home video collection you can save range from 0GB (if you don't save any videos) up to a maximum of 38GB (if you save videos that take up the entire available space).

The inequality that represents this is: a ≤ 38GB, where 'a' represents the amount of space available.

Aleta went to dinner. the bill was 36. she gave the waiter a 15% tip. what was the total ammount Aleta spend on the food and the tip

Answers

she spent 5.4 on tip so her overall total is $41.40

To calculate the total amount Aleta spent, including the tip, multiply the bill ($36) by the tip percentage (15%) to get the tip amount ($5.40) and add it to the bill to get the total cost ($41.40).

The question asks us to calculate the total amount Aleta spent on dinner including a 15% tip. To find the tip amount, we multiply the bill by the tip percentage in decimal form. The bill is $36, so we calculate 15% of $36 as follows:

0.15 × $36 = $5.40

The total cost of the meal including the tip is $36 (the original bill) + $5.40 (the tip) = $41.40.

Brandon has won 4 out of the last 12 times he has played his older brother favorite video game he wants to prove that he’s good as his brother by having a winning record of 50% which equation could he use to determine how many games he could have one in the world to achieve his goal

Answers

Answer:

A

Step-by-step explanation:

Answer:

4 + x/12 + x = 0.50

Step-by-step explanation:

The bake star bakery uses 2 1/4 cups of raisins to make 4 servings of trail mix. How many cups of raisins are in each serving?

Answers

let's firstly convert the mixed fraction to improper fraction, and then divide it by 4 to see what our quotient is.


[tex]\bf \stackrel{mixed}{2\frac{1}{4}}\implies \cfrac{2\cdot 4+1}{4}\implies \stackrel{improper}{\cfrac{9}{4}} \\\\[-0.35em] ~\dotfill\\\\ \cfrac{9}{4}\div 4\implies \cfrac{9}{4}\div \cfrac{4}{1}\implies \cfrac{9}{4}\cdot \cfrac{1}{4}\implies \cfrac{9}{16}[/tex]

Answer:

[tex]\frac{9}{16}[/tex] cups of raisins are in each serving

Step-by-step explanation:

Unit rate defined as the rates are expressed as a quantity as 1 such as 2 meter per seconds or 4 miles per hour.

As per the statement:

The bake star bakery uses 2 1/4 cups of raisins to make 4 servings of trail mix.

⇒Cup of raisins = [tex]2\frac{1}{4} = \frac{9}{4}[/tex] and number of serving  = 4

We have to find the cups of raisins are in each serving

Then by definition of unit rate we have;

[tex]\text{unit rate per serving} = \frac{\frac{9}{4} }{4} = \frac{9}{16}[/tex] cups of raisins

therefore, [tex]\frac{9}{16}[/tex] cups of raisins are in each serving

Donte and Trista both bought the same three-ring binder for $5. Donte lives in Arizona and pays 5.6% in sales tax, while Trista lives in New Jersey and pays 7% in sales tax. How much more did Trista pay in sales tax than Donte?

Answers

Sales tax paid by Donte = [tex]\frac{5.6}{100} (5)[/tex]

= 0.28

Sales tax paid by Trista = [tex]\frac{7}{100} (5)[/tex]

= 0.35

The extra tax paid by Trista = 0.35 - 0.28 = 0.07.

Hence, Trista paid $0.07 more than Donte.

Your cousin gave you $9 to buy a present with. This covered 3/5 of the cost. How much did the present cost?

Answers

If the $9 is 3/5 of the amount of the present, then it will be 9 divided by 0.60, which is 15. You can check this by putting in 15 times 0.60, which is 9

I need help in this . Just ignore that equation in top of the problem

Answers

communtative property
Communitive property

The quotient of five Times a number and seven is no more than 10

Answers

5 . x ÷ 7 = 10 or less

5 . 14 = 70 ÷ 7 = 10

Final answer:

The unknown number, when multiplied by five and divided by seven, has to result in a value of 10 or less. To find this number, we solve the inequality 5x / 7 <= 10 and find that x must be less than or equal to 14.

Explanation:

The question is asking for a number that, when multiplied by five and then divided by seven, yields a result of 10 or less. Let's denote the unknown number as x. We can put this into a mathematical inequality:

5x / 7 <= 10

To solve for x, we first multiply both sides by 7 to cancel the denominator on the left side:

5x <= 70

Then, we divide both sides by 5 to isolate x:

x <= 14

Therefore, the number must be less than or equal to 14.

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The sum (c−4)+(3c+9) is

Answers

4c+5


hope that helps you out

The sum (c−4)+(3c+9) is 4C+5

How to find the sum of variables?same variables are added or subtractedvariables with same powers are added or subtracted.

Addition

(c−4)+(3c+9)

C-4+3C+9

⇒(C+3C)+(-4+9)

⇒4C+5

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Given the perimeter of a​ square, find the length of one side using the appropriate formula.

A square closet with a perimeter of 16 ft.

Answers

Answer:

f

Step-by-step explanation:7574



I can't figure out the answer. J need help!

41.8 is 67% of what number

Answers

Hi!

Equation: Y = P% * X

X = Y/P%

X = 41.8/67%

p = 67/100 = 0.67

X = 41.8/0.67

Answer:

X = 62.3881

HELP ME JDJDJDJDJDJDJDJDJD

Answers

Answer:

15/100

0.15 is 15 hundredths, which can also be written as 15/100. If you say the decimal out loud, and then the fraction out loud, you say them the same.

Use properties of addition and subtraction to evaluate the expression.

−38−11−22

Enter your answer in the box.

Answers

the answer would be 5

Answer:

-71

Step-by-step explanation:

Which is both a real number and integer?
A.23
B. 1/4
C. ✓27
D.3.402538

Which of these numbers is classified as both real and ratinal?
A. ✓17
B.✓23
C.✓9
D.✓2

Answers

(1)

answer A: 23 is an integer and, as such, belongs to the set of Reals

(2)

answer C: sqrt(9)=3 is rational (can be written as 9/1, or 18/2, etc.) and, as such, is a Real number as well. The others are irrational numbers, so they do not qualify.

1. The number which is both real and integer number is 23.

2. The number which is both real and integer number is √9.

What is square root of a number?

A square root of a number is a value that multiplied by itself gives the same number.

Given that;

There are some numbers.

We have to choose the real and integers number.

Now,

Since, The integers are the number that is positive, negative and zero.

Hence,

1. The number 23 is a real number and it is also a integer.

And,

2. √9 = √3 x 3

        = 3

Thus, The number √9 = 3 is a real number and it is also a integer.

Therefore,

1. The number which is both real and integer number is 23.

2. The number which is both real and integer number is √9.

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what is the interquartile range of this set of data 5, 5, 6, 7, 9, 11, 14, 17, 21, 23

Answers

Answer:

11.00

Step-by-step explanation:

To calculate the interquartile range of the data:

5, 5, 6, 7, 9, 11, 14, 17, 21, 23

To calculate the interquartile range we need to lower quartile [tex](X_L)[/tex] and upper quartile [tex](U_L)[/tex].

The lower interquartile [tex](X_L)[/tex] of the data set is: 6.

The upperquartile [tex](U_L)[/tex] of the data set is: 17.

Therefore, the interquartile range is:  [tex](X_U-X_L)=(17-6)=11[/tex].

Answer:

11

Step-by-step explanation:

here is a easer way to explain you need the highest aand lowest number so thats 5 and 23 23-5=18 5 6 7 9 11 14 17 21 18=108 108/10=10.8 now you round the 8 and its 11

what is the answer too 2 plus 2
A.4
B.8
C.6

Answers

The answer will be A.4

the answer is a) 4


yay



SOLVE ASAP PLEASE!!!!!!!!!!!!!!!!!!!!!!!






Solve for s. 4 + ((-8) + s) = 20

Answers

1. subtract 4 from both sides.
2.add 8 to both sides then you're left with s on one side and 24 on the other.
3. see if 24 really is the answer by putting it in the equation.

s=24
I know this one! You start by subtracting 4 from both sides of the equal sign/equation, which leaves you with -8 + s = 16. Then you add 8 to both sides, and you get the answer, which is s = 24!
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