Find f(3) for f(x)=−5x−2

A. -10

B. -15


C. 13


D. -17

Answers

Answer 1

Answer:

f(3) = -17

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

f(x) = -5x - 2

f(3) is x = 3

Step 2: Evaluate

Substitute in x:                    f(3) = -5(3) - 2Multiply:                               f(3) = -15 - 2Subtract:                              f(3) = -17

Related Questions

-2/3 a +5/6 a -1/6 

Answers

The solution is   [tex]\frac{9a - 1}{6}[/tex]

An element of a whole is a fraction. The number is represented mathematically as a quotient, where the numerator and denominator are split. Both are integers in a simple fraction. A fraction appears in the numerator or denominator of a complex fraction.

Find the lowest common denominator (LCD), convert each algebraic fraction to an equivalent fraction with the common denominator, and then combine each numerator to add or subtract algebraic fractions with distinct denominators. Reduce if you can.

Use the highest exponent of any common variable factor that has more than one exponent.

Add multiplied terms together to get a single fraction.

[tex]\frac{2a}{3} + \frac{5a}{6} + \frac{-1}{6}\\ \\ = 2(\frac {2a}{3}) + \frac{5a}{6} + \frac{-1}{6}\\\\\\\ = \frac{4a + 5a - 1}{6} \\ \\= \frac{9a - 1}{6}[/tex]

Therefore, the answer is (9a - 1) / 6

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Determine which answer in the solution set will make the equation true.

4p + 5 = 6p − 15
S: {−10, 0, 10, 20}

0
−10
20
10

Answers

The answer in the solution set that will make the equation true is 10

How to determine which answer in the solution set will make the equation true?

The equation is given as

4p + 5 = 6p - 15

Collect the like terms in the above equation

So, we have

4p - 6p = -5 -15

Evaluate the like terms

So, we have

-2p = -20

Divide both sides by -2

So, we have

p = 10

Hence, the answer in the solution set that will make the equation true is 10

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Multiply. 6 1/4 x 3 3/5 = 18 3/20 18 17/20 22 1/2 22 1/20

Answers

On multiplying  two fractional  terms  [tex]6\frac{1}{4}[/tex]  X  [tex]3 \frac{3}{5}[/tex]   we get [tex]22\frac{1}{2}[/tex]  as a result.

multiplication- it is an operation that represent the basic idea hope repeated addition of the same number.

It is used to simplify the task it is used when we need to combine groups of equal size.

mixed fraction - it is represented with its quotient and remainder.

it contains a whole number and a proper fraction.

To solve above equation firstly solve mixed fraction.

 [tex]6\frac{1}{4}[/tex]  = 25/4

 [tex]3 \frac{3}{5}[/tex]  = 18/5

then on multiplying them we get

[tex]6\frac{1}{4}[/tex]  X  [tex]3 \frac{3}{5}[/tex]   = 25/4 X 18/5

= 45/2

=[tex]22\frac{1}{2}[/tex]

 [tex]6\frac{1}{4}[/tex]  X  [tex]3 \frac{3}{5}[/tex]   = [tex]22\frac{1}{2}[/tex]

On multiplying  two fractional  terms  [tex]6\frac{1}{4}[/tex]  X  [tex]3 \frac{3}{5}[/tex]   we get [tex]22\frac{1}{2}[/tex]  as a result.

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la razon de hombres a mujeres que trabajan en una campañia es de 4 a 7. Si hay 143 empleados en total ¿Cuantas mujeres trabajan en la compañia?​

Answers

In a company of 143 employees, the number of women working in the company is 91.

The quantitative relation is outlined because the comparison of 2 quantities of a similar units that indicates what proportion} of 1 amount is gift within the alternative quantity.Ratios may be classified into 2 varieties. One half|is a component|is an element} to part quantitative relation and also the alternative is an element to whole quantitative relation.

Given,

Men : Women = 4 : 7

Total number of employees =  143

Let us take a multiplying factor of x

This implies, Number of men = 4x , Number of women = 7x

Using the given data, we get 4x + 7x = 143

                                                  11x = 143

                                                   x = 143 / 11

                                                   x = 13

Number of men = 4x = 4 (13) = 52

Number of women = 7 (13) = 91

Therefore, using the concept of RATIO, we get the number of women working in the company as 91.

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The complete question is given below.

The question given in Spanish when translated in English states that :The ratio of men to women working in a company is 4 to 7. If there are 143 employees in total, how many women work in the company?

Given that m
Please help me with this!

Answers

Answer:

where is the probleM?

Step-by-step explanation:

find the value of x:​

Answers

Answer:

35°

Step-by-step explanation:

Total: 360°

{[360-(110*2)]/2}2

John made a nut mixture that contains
90% peanuts by mixing 5 oz. of mixed
nuts with 20 oz. of peanuts. The mixed
nuts contained what percent peanuts?

Answers

The percentage of peanuts which this mixed nuts contained is 40%.

What is a proportion?

A proportion can be defined as an equation which is typically used to represent (indicate) the equality of two (2) ratios. This ultimately implies that, proportions can be used to establish that two (2) ratios are equivalent and solve for all unknown quantities.

In order to determine the percentage of peanuts which this mixed nuts contained, we would develop a table of proportion to model the word problem as follows:

5 oz + 25 oz = 30 oz

5x + 25 = 30(0.9)

x + 5 = 6(0.9)

x + 5 = 5.4

x = 5.4 - 5

x = 0.4 ⇒ 40%.

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In this discussion, you will reflect on what you have learned about solving equations.

Discussion Prompt: Sarah and Kayla both solved the problem below. Who do you think solved it correctly? For the person who solved it incorrectly, what mistake do you think was made?
Sarah

5x - 15 - 3x = 10 - (-3x + 20)

2x - 15 = 10 + 3x - 20

2x - 3x - 15 = -10 + 3x - 3x

-1x - 15 = -10

-1x - 15 + 15 = -10 + 15

-1x = 5

x = -5



Kayla

5x - 15 - 3x = 10 - (-3x + 20)

2x - 15 = 10 + 3x - 20

2x + 3x - 15 = -10 + 3x + 3x

5x - 15 = -10

5x - 15 + 15 = -10 + 15

5x = 5

x = 1

Post a brief paragraph responding to the discussion prompt above. Your post should use concepts presented in this module/lesson. Your post must be completed before you can see posts from your classmates.
Discussion Responses

Answers

The person that solves the equation correctly is Sarah. It should be noted that the mistake that Kayla made is that she added 2x + 3x rather than subtracting it.

How to illustrate the information?

It should be noted that an equation is simply used to illustrate the relationship between two variables.

In this case, the solution to the equation will be:

5x - 15 - 3x = 10 - (-3x + 20)

2x - 15 = 10 + 3x - 20

2x - 3x - 15 = -10 + 3x - 3x

-1x - 15 = -10

-1x - 15 + 15 = -10 + 15

-1x = 5

x = -5

Therefore, the person that solves the equation correctly is Sarah. It should be noted that the mistake that Kayla made is that she added 2x + 3x rather than subtracting it.

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What is the greatest common factor of 35 and 25

Answers

Answer:

5

Step-by-step explanation:

5 |35 | (5 is the divisor and 35 is the dividend)

= 7|

For 25;

5 |25|

=5

35 = 5 * 7

25 = 5 * 5

Now, common factor =5

A sled team consists of 11 dogs and the musher. Each dog weighs 70 pounds and the musher weighs 160 pounds. What is the average weight of the sled team members?

a
68.5 pounds
b
115 pounds
c
73.5 pounds
d
77.5 pounds

Answers

The average weight of the sled team members is 77.5

What is an average value?

Average value can be calculated by finding the  sum of a set of numbers  then count the total number, then divide the sum with the  number of the counted values.

To calculate the average weight of the sled team members, then we know that there are  11 dogs and the musher, which implies that there are total number of 12 animals.

Then we can find the total number of the dogs as (11*70) =770 dogs, then we can add to the musher which makes the total number of (770+160)=930

Then the average weight of the sled team members is [tex]\frac{930}{12} =77.5[/tex]

Therefore, option D is correct.

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What’s the morning time on the clock

Answers

The answer is: 7:20 am
The answer is 7.20 a.m.

Find the average rate of change of the function: f(x)=x²-3 between the values [3,5]​

Answers

Answer: 4

hope it helps

Eva went to shop and bought 3 apples, 5 peaches, 8 bananas, 1 pineapple and 3 melons. what are the mean and median of her purchase?

Answers

If Eva went to a shop and bought 3 apples, 5 peaches, 8 bananas, 1 pineapple, and 3 melons, then the mean and median of her purchase are equal to 4 and 3 respectively.

Mean can be described as the most common value in a group of numbers. The mean of a certain set can be found by the ratio of the sum of the values to the number of values.

Mean = Sum total of the expressions/ Number of expressions

Sum of the values = 3 + 5 + 8 + 1 + 3 = 20

Number of values = 5

Mean = 20 / 5

Mean = 4

Median can be described as the central number in a series of numbers or a dataset.

If we arrange the given dataset in ascending order, that is from smallest to largest, then the median can be found as follows,

1 + 3 + 3 + 5 + 8

As the middle number is 3, therefore the median of the given data set is equal to 3.

Therefore, the mean and median of her purchase are calculated to be 4 and 3 respectively.

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what percent of 54 is 23? explained

Answers

Answer: 42.59

Step-by-step explanation:

Step 1: First, write the problem as an equation: P% = X/Y

Step 2: Here, X is 23, Y is 54, so the equation is P% = 23/54

Step 3: A percent is a ratio of a number expressed out of 100. So P% means P/100

Step 4: Substitute P/100 instead of P% in the above equation, then P% = 23/54 becomes P/100 = 23/54

Step 5: Solve for P

P/100 = 23/54

P = (23/54) * 100 = 42.59

Therefore, 23 is 42.59 percent of 54

a board game spinner is divided into three parts labeled $a$, $b$ and $c$. the probability of the spinner landing on $a$ is $\frac{1}{3}$ and the probability of the spinner landing on $b$ is $\frac{5}{12}$. what is the probability of the spinner landing on $c$? express your answer as a common fraction.

Answers

Probability of spinner landing on 'c' is 1/4;

Probability of spinner landing on 'a' = 1/3 = 4/12;

Probability of spinner landing on 'b' = 5/12;

Thus, Probability of spinner landing on 'c' = 1 - (5/12 + 4/12)

                                                                  = 1 - 9/12

                                                                  = 3/12

                                                                  = 1/4;

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Which of the following equations has nosolution? B= -B+ 2 B + 2= b + 2 B+ b = 2 b + 2 = b-2

Answers

the equation B= -B+2B+2 has no solution

given equation B= -B+2B+2=b+ 2B +b= 2b+2= b-2

taking B= -B+2B+2

          B+B=2B+2

           2B=2B+2

             2=0        hence no solution

taking -B+2B+2=b+2B+b

           -B   =  2b-2

            B=  2(1- b)       is the solution of equation

 taking  b+2B+b=2b+2

                 2B=2

                  B=1 is the solution of given equation

taking 2b+2 = b-2

          b= -4

thus the equation B= -B+2B+2 has no solution

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b =x/m(a-x)
Make x the subject of this equation.

Answers

Answer:

[tex]x= \dfrac{bma}{bm+1}[/tex]

Explanation:

Given expression:

[tex]\hookrightarrow b = \dfrac{x}{m(a-x)}[/tex]

shift the variables

[tex]\hookrightarrow b m(a-x)= x[/tex]

distribute inside parenthesis

[tex]\hookrightarrow bma-bmx= x[/tex]

collect terms with "x" in one side

[tex]\hookrightarrow -bmx-x= -bma[/tex]

divide both sides by -1

[tex]\hookrightarrow bmx+x= bma[/tex]

factor out common term "x"

[tex]\hookrightarrow x(bm+1)= bma[/tex]

shift the variables making "x" the subject

[tex]\hookrightarrow x= \dfrac{bma}{bm+1}[/tex]

the Math question is on the image​

Answers

Answer:

  x = 40

Step-by-step explanation:

You want x when y = 16, given that x = 2 when y = 1/25 and x is proportional to the square root of y.

Proportion

The given relation between x and y is ...

  x = k√y . . . . . . x is proportional to the root of y

Application

The value of k is found from ...

  k = x/√y = 2/√(1/25) = 10

Then for y = 16, we have ...

  x = 10·√16 = 10·4

  x = 40 . . . . . . . . when y = 16

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What is the slope of the line that passes through the points (-7, -2) and
(-2,-22)? Write your answer in simplest form.

Answers

Answer:

-4

Step-by-step explanation:

Compute the slope of the line through the following points:

p_1 = (-7, -2) and p_2 = (-2, -22)

The slope of the line through (x_1, y_1) and (x_2, y_2) is:

(y_2 - y_1)/(x_2 - x_1)

Substitute (x_1, y_1) = (-7, -2) and (x_2, y_2) = (-2, -22):

= (-22 - -2)/(-2 - -7)

-(-7) = 7:

= (-22 - -2)/(-2 + 7)

-2 + 7 = 5:

= (-22 - -2)/5

-(-2) = 2:

= (-22 + 2)/5

-22 + 2 = -20:

= (-20)/5

The gcd of -20 and 5 is 5, so (-20)/5 = (5 (-4))/(5×1) = 5/5×-4 = -4:

Answer:  = -4

brainiest to correct answer

Which part of the technological design process involves learning from other scientists that have solved the problem before?

A. decide on a solution
B. refine the original solution design
C. test and evaluate a solution
D. research existing solutions

Answers

Answer:

C. test and evaluate a solution

cuál es el valor total de 9?

Answers

Answer:

(0.98768834,0.15643446)

Step-by-step explanation:

yo creo

3. (g + h) (×)
4. (g - h ) (×)
5. (f + h) (×)

please solve thankyou!!​

Answers

3. gx + hx
4. gx -hx
5. fx + hx

C is the midpoint of AD. B is the midpoint of AC BC =4 what is the length of BD

Answers

Answer:

================= m

Step-by-step explanation:

uuhhhhhhvvvvbvvggggghgggghhgg

If a lighthouse's shadow is 36ft what is the lighthouse height?

Answers

Answer:

I think its 48 feet

Step-by-step explanation:

Answer:

wouldn't u need another object and that objects shadow?

whic is the correct form of the equation a+b+c=d when solved for a?

Answers

Answer:

a = d-b-c

Step-by-step explanation:

i think?

A travel agency recorded the travel destinations of 60 South African tourists last month.
Of the 60 tourists, 30 visited Europe, 28 visited the UK, 9 visited America and 12
visited both Europe and the UK. Five tourists did not visit America, Europe or the UK.
(1) Draw a Venn diagram to represent this information.
(2)
(3)
Determine the probability that a tourist, selected at random, visited Europe only.
Determine the probability that a tourist, selected at random, visited America.
Determine the probability that a tourist, selected at random, visited both Europe
and the UK.
(4)
(5)
Determine:
(i) P((not E) or A)
(ii)
P((not A) and UK)
02 The probability that he will

Answers

Answer:

to create venn diagram

Step-by-step explanation:

To create an intersecting Venn diagram, draw three circles that overlap in the middle. You'll be able to show which attributes are unique to each circle, which overlap between two, and which are common characteristics of all three groups. Two circles overlapping is a classic venn diagram.

Rectangle a measures 9 inches by 3 inches rectangle b is a scaled copy of rectangle a

Answers

Multiply 9 and 3 by the scale factor of rectangle B, and those should be your new corresponding dimensions for that rectangle.

Bailey starts playing a game on her cell phone with the battery fully charged and plays until the phone battery dies. While playing the game the charge in Bailey's battery decreases by half a percent per minute. Write a function for the percent change in the battery while Bailey is playing the gane

Answers

The linear function for the percent change in the battery while Bailey is playing the gane is:

B(t) = 100 - 0.5t, 0 ≤ t ≤ 200.

What is a linear function?

A linear function is modeled by:

y = mx + b

In which:

m is the slope, which is the rate of change, that is, by how much y changes when x changes by 1.b is the y-intercept, which is the value of y when x = 0, and can also be interpreted as the initial value of the function.

For this problem, we have that:

The intercept is the initial battery, of 100.The slope is of -0.5, as the battery decays by 0.5% each minute.

Hence the function is:

B(t) = 100 - 0.5t.

The battery will be of 0, when:

B(t) = 0.

100 - 0.5t = 0.

t = 100/0.5.

t = 200.

Hence the function is:

B(t) = 100 - 0.5t, 0 ≤ t ≤ 200.

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Enlarge the triangle by scale factor 2.

Answers

Answer:

Answer in the picture attached

find the slope of the line in the picture

Answers

The slope of the line in the picture is 2.8

How to find the slope of the line in the picture?

To calculate the slope of the line, we make use of two points on the line

The two points to use are

(0, 0) and (25, 70)

The slope of the line is then calculated as

Slope = (y2 - y1)/(x2 - x1)

So, we have

Slope = (70 -0)/(25 - 0)

Evaluate

Slope = 2.8

Note that the slope can also be regarded as the constant average rates of change or the gradient

Hence, the slope of the line in the picture is 2.8

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