Evaluate and simplify the expression when x=14 and y=1/3
2x/13-9y=?/?

Answers

Answer 1
2 x 14 = 28

28/13 rounds off to 2.15.

9 * 1/3 is 3.

2.15 - 3 = -0.85

Or -17/20.
Answer 2

Answer:

Step-by-step explanation:

It’s 14/5 lol


Related Questions

find the slope of the line that passes through (3,4) and (1,7)

Answers

Answer:

-3/2

Step-by-step explanation:

Since we have two points, we can use the slope formula

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

   = ( 7-4)/(1-3)

   = 3/-2

  = -3/2

Answer:

The answer is

[tex] - \frac{3}{2} [/tex]

Step-by-step explanation:

The slope of a line given two points can be found by using the formula

[tex]m = \frac{y_{2} -y_{1}}{x_{2} -x_{1} } [/tex]

where

(x1 , y1) and (x2 , y2) are the points

m is the slope

From the question the points are

(3,4) and (1,7)

The slope is

[tex]m = \frac{7-4}{1 - 3} \\ = - \frac{3}{2} [/tex]

We have the final answer as

[tex] - \frac{3}{2} [/tex]

Hope this helps you

Ralph is leasing a $32,000 car for 36 months. The terms of his lease include an 8.5% interest rate (money factor of 0.00354) and a residual value of 72%. Determine Ralph's approximate monthly lease payment. a. $145.00 b. $230.40 $248.89 d. $443.73 C.​

Answers

Answer:

d. 443.73

Step-by-step explanation:

i got it right on the test

Ralph approximate monthly lease payment is: d. $443. 73.

Monthly Lease payment

First step:

Residual value=$32,000×72%

Residual value=$23,040

Second step:

Depreciation=$32,000-$23,040

Depreciation=$8,960

Third step:

Base monthly lease payment=$8,960/36

Base monthly lease payment=$248.89

Fourth step:

Interest per month=($32,000+$23,040)×0.00354

Interest per month=$55,040×0.00354

Interest per month=$194.84

Fifth step

Monthly lease payment=$248.89+$194.84

Monthly lease payment=$443.73

Inconclusion Ralph approximate monthly lease payment is: d. $443. 73.

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Find the constant of variation for the relation and use it to write an equation for the statement. Then solve the equation. If y varies inversely as the square of x, and y=7/4 when x=1, find y when x=3

Answers

Answer:

y=7/36

Step-by-step explanation:

Since y varies inversely to the square of x, we can say

[tex]y = z/x^2[/tex]

where z is the constant of variation.

Then, from knowing that y=7/4 when x=1, we plug them in to find z.

[tex]7/4=z/(1^2)\\z=7/4[/tex]

Now we have the full equation,

[tex]y=7/4x^2[/tex]

Plug x=3 in and we get,

[tex]y=7/4(3^2) = 7/36[/tex]

Biometric measures evaluate: Question 17 options: data about a person's heartbeat, perspiration levels, respiration, and body movements. data about a person's attitudinal changes. changes in sales after exposure to an emotional advertisement. increases in verbal responses to questions posed in focus groups.

Answers

Answer:

data about a person's heartbeat, perspiration levels, respiration, and body movements.

Step-by-step explanation:

the answer to the question is that

biometric measures are useful for evaluating data like that of heartbeat, perspiration levels, respiration, body movements of a person.

Biometrics is useful for the evaluation of the physical characteristics of a person. such a measure is for authentication and security identification. the system gives allowance for certain features of a person to be recognized using biometric data and also algorithm.

Given f(x)=10(3−x)+6, what is the value of f(−1)?

35

37

26

46

Answers

Answer:

46

Step-by-step explanation:

[tex]f(x) = 10(3 - x) + 6 \\ f( - 1) = 10(3 - ( - 1)) + 6 \\ f( - 1) = 10(3 + 1) + 6 \\ f( - 1) = 10 \times 4 + 6 \\ f( - 1) = 40 + 6 \\ \huge \red{ \boxed{ f( - 1) = 46}} \\ [/tex]

We defined the operation of concatenation for sets of strings on p. 10, AB = { XY | X ∈ A and y ∈ B}Are the regular sets closed under concatenation? That is, if A and B are regular sets, is AB guaranteed to be a regular set? Prove or show a counterexample.

Answers

Answer and Explanation:

Solution: The operation of concatenation for a set of string on p. and the set is

     AB = {XY | X ∈ A and y ∈ B}.

We need to satisfy all these following properties to find out the standard set is closed under concatenation.

1- Union of two standard sets also belongs to the classic collection. For example, A and B are regular. AUB also belongs to a regular group.

2- Compliment of two standards set A and B are A’ and B’ also belonging to the standard set.

3- Intersection of two standards set A and B is A∩B is also a regular set member.

4- The difference between two regular sets is also standard. For example, the difference between A and B is A-B is also a standard set.

The closure of the regular set is also standard, and the concatenation of traditional sets is regular.

Which answer shows 9 times 10 Superscript negative 5 written in standard form? –0.000009 –0.00009 0.0009 0.00009

Answers

Answer:

0.00009 is the answer.

Step-by-step explanation:

The decimal would be 9. if 9 was a decimal, since -6 is your exponent you would move 6 places to the left with left being negative and right being positive, therefore you would get 0.00009.

The required standard form of 9 times 10 Superscript negative 5 is 0.00009. Option D is correct.

What is a number system?

A number system is described as a technique of composing to represent digits. It is the mathematical inscription for describing the numbers of a given set by using numbers or other characters in a uniform method. It delivers a special presentation of every digit and describes the arithmetic structure.

Here,
The given expression,
9 times 10 Superscript negative 5  = 9 × 10⁻⁵
= 9 / 10⁵
= 9 / 100000
= 0.00009

Thus, the required standard form of 9 times 10 Superscript negative 5 is 0.00009. Option D is correct.

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Andre was trying to write 7⁴/7⁻³ with a single exponent and wrote 7⁴/7⁻³=7⁴⁻³. Explain to Andre what his mistake was.

Answers

Answer:

see explanation

Step-by-step explanation:

Using the rule of exponents

[tex]\frac{a^{m} }{a^{n} }[/tex] = [tex]a^{(m-n)}[/tex], then

[tex]\frac{7^{4} }{7^{-3} }[/tex] = [tex]7^{4-(-3)}[/tex]

His mistake was in subtracting 3 rather than - 3

Andre's mistake was that he was not subtracting the power correctly.

The given expression is,

[tex]\frac{7^4}{7^{-3}}[/tex]

As we know according to the exponent law:

[tex]\frac{a^m}{a^n} =a^{m-n}[/tex]

Now, applying the above law into the given expression we get,

[tex]\frac{7^4}{7^{-3}}=7^{4-(-3)}\\ =7^{4+3}\\=7^7[/tex]

Hence, Andre's mistake was that he was not subtracting the power correctly.

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20 experts can solve a complex mathematical question in 60 minutes. 20 dull people

can solve the same complex mathematical question in 180 minutes. If 10 experts and

10 dull people sit to solve the same question, how many hours will they take​

Answers

Answer: 10*1/20*1+10*1/20*3

(hints..... 1 experts =1/20*60mins and 1 dull =1/20*180mins)

Steven buys 24 bags of flour. Each bag holds 25 pounds of flour. How much flour did Steven buy?

Answers

if he has 24 bags and each is 25 pounds, you need to multiply:

24x25=600
Steven bought 600 pounds of flour.

Answer:

c

Step-by-step explanation:

7= x + 6 solve for x

Answers

7=x +6 solve for x. x is 1

What is the value of the digit 0? 9.206

Answers

Answer:

There Is No Value For The Digit 0

Step-by-step explanation:

It’s 0 Hundredths place

is x=-4 an infinite solution?​

Answers

Answer:

no, that is not an infinite solution

Step-by-step explanation:

an infinite solution is where a number equals a number and where x gets crossed out. the answer listed here is a solution :)

PLEASE CAN SONEONE HELP ME ON THIS I WILL GIVE YOU 20 POINTS!!!​

Answers

Answer:

basicly each side equals 2.25 thats the only possible way i see it but im kinda dumb

Step-by-step explanation:

Solve 2x−3=13 for the varialbe.

Answers

Answer:

The answer is 8

Step-by-step explanation:

2x-3=13

2x=13+3

2x=16

x=8

Add three to both sides, now you have 2x=16 divide by two on each side then you have x=8

I need help , I don’t understand

Answers

Answer:

Mean- 5

Median- 6

Mode- 6

Step-by-step explanation:

1. Place the numbers in order from smallest to biggest.

0,2,3,4,5,6,6,6,7,8,8

Finding the mean (average)- add all the numbers in thd data set together. Which would be 55. Then, you would divide that number by the number of the numbers in the data set. (11 numbers.) 55/11. 55 divided by 11 is 5, so that is your answer.

Finding the median- This is why we put the numbers in order. We are finding the number that is directly in the middle of the numbers. Mark one on each side until you get to the number in the middle. In this case, the median number will be 6.

Finding the mode- This one is easy. It's simply the number that repeats itself the most. In this case it would be 6 because it repeats itself 3 times.

Select the expression that is equivalent to

Answers

Answer:

  [tex](4.3\cdot 2.6)\times 10^{5+7}[/tex]

Step-by-step explanation:

All parts are multiplied. The powers of 10 are multiplied by adding their exponents. The product is formed as shown below.

Use the drop down menus to indetify the roots in these english words retainer inductive convivial typography

Answers

Answer:

tain, duc, viv, graph

Step-by-step explanation:

Answer:

tain, duc, viv, graph Also as 3, 3, 2, 3

Step-by-step explanation:

Write out the algebraic proportion of the ratio of a to 7 is equal to the ratio three more than a to 13. A. a/7 = 13/a+3 B. a/7 = a-3/13 C. a/7 = a+3/13 D. 7/a = a+3/13 Please be fast!

Answers

Answer:

I think its c

Step-by-step explanation:

The numbers on two consecutively numbered time lockers have a sum of 129. What are the locker numbers? The locker numbers are?

Answers

x = one number

x + 1 = second number

x + x + 1 = 129

Combine like terms

2x + 1 = 129

Subtract 1 from both sides.

2x = 128

Divide both sides by 2

x = 64

The locker numbers are 64 and 65

When I double my number, add four, and then subtract my number and subtract three, I get my number plus one. What is my number?

Answers

Answer: Let your no.= x

double the number=2x

add 4 = 2x+4

subtract same number=2x+4-x

subtract 3=2x+4-x-3

I get my number plus 1=x+1

 

so equation we get

2x+4-x-3=x+1

x+1=x+1

 

x=x

 

it means  x is equal to all real number

So your number can be any real number

How do I solve this?

Answers

Answer:

x is in the range [-1,4]

Step-by-step explanation:

I haven't worked with absolute value inequalities in awhile, but let's take a wack at this.

We are given the following inequality:

| 2x - 3 | <= 5

This implies two possible cases:

[1] -5 <= 2x -3

Or

[2] 2x - 3 <= 5

So let's solve x for both of these cases:

[1] -5 <= 2x - 3

 -2 <= 2x

 -1  <= x

[2]  2x - 3 <= 5

 2x <= 8

  x <= 4

So from these cases, we can say the following is true:

x >= -1  and x <= 4

Thus, we can write this in the form

-1 <= x <= 4

Or in interval notation:

{ x is element of reals | -1 <= x <= 4}

Also written as

x is in the range [-1,4]

Where the closed brackets represent 1 and 4 as possible answers whereas parenthesis would imply they were not.

Cheers.

Simplify the ratio.
49 to 77

Answers

Answer:

7/11 as a fraction if your talking about a fraction

It would be 7:11 because 49 divided by 7 = 7 and 77 divided by 7 = 11 and thats as far as you can simplify

The planners in the local department of transportation want to build a
highway with two rest stops between the towns. The rest stops will divide
the highway into three equal parts.
Where, on the coordinate plane, should the rest stops should be built?

Answers

Answer:

(-0.75, -3.25) and (4.125, -2.125)

Step-by-step explanation:

Let the town, Thayer = point A(-4, -4)

Town Purdy = point D(9, -1).

Let B and C represent the two rest stops that divides the highway (AD) into 3 equal parts, namely: AB = BC = CD.

Distance of point B from A to D = ⅓ of AD.

Point C = the midpoint of point B and D.

First, using the formula for internal division, let's find the coordinates of point B:

Internal division to find the coordinates of point B is given as:

[tex] x = \frac{mx_2 + nx_1}{m + n} [/tex]

[tex] y = \frac{my_2 + ny_1}{m + n} [/tex]

Where,

[tex] A(-4, -4) = (x_1, y_1) [/tex]

[tex] D(9, -1) = (x_2, y_2) [/tex]

[tex] m = 1, n = 3 [/tex]

Plug in the necessary values into the formula stated above to solve for x and y of point B:

[tex] x = \frac{1*9 + 3*(-4)}{1 + 3} [/tex]

[tex] x = \frac{9 - 12}{4} [/tex]

[tex] x = \frac{-3}{4} [/tex]

[tex] x = -\frac{-3}{4} = 0.75 [/tex]

[tex] y = \frac{1*(-1) + 3*(-4)}{m + n} [/tex]

[tex] y = \frac{-1 - 12}{1 + 3} [/tex]

[tex] y = \frac{-13}{4} [/tex]

[tex] y = -3.25 [/tex]

The coordinates of point B = (-0.75, -3.25)

Next, find the coordinates of point C, which is the midpoint of B(-0.75, -3.25) and D(9, -1) using the midpoint formula.

Midpoint (C) of BC, for B(-0.75, -3.25) and D(9, -1)  is given as:

[tex] M(\frac{x_1 + x_2}{2}, \frac{y_1 + y_2}{2}) [/tex]

Let [tex] B(-0.75, -3.25) = (x_1, y_1) [/tex]

[tex] D(9, -1) = (x_2, y_2) [/tex]

Thus:

[tex] C(\frac{-0.75 + 9}{2}, \frac{-3.25 + (-1)}{2}) [/tex]

[tex] C(\frac{8.25}{2}, \frac{-4.25}{2}) [/tex]

[tex] C(4.125, -2.125) [/tex]

The rest stops should be built at (-0.75, -3.25) and (4.125, -2.125) in the coordinate plane.

It takes Jesse 2/3 hour to mow her backyard. How much of the yard will be mowed after 1/4 hour?

Answers

devide 2/3 to 1/4 to get theanwser

Step-by-step explanation:

Complete the equation.
Please someone help.

Answers

The answer is 3x to the second power.

Simplify the expression: 2(4 + 6j)

Answers

Answer:

[tex] \boxed{ \bold{ \huge{ \boxed{ \sf{8 + 12j}}}}}[/tex]

Step-by-step explanation:

[tex] \sf{2(4 + 6j)}[/tex]

Distribute 2 through the parentheses

[tex] \longrightarrow{ \sf{2 \times 4 + 2 \times 6j}}[/tex]

[tex] \longrightarrow{ \sf{8 + 12j}}[/tex]

Hope I helped!

Best regards! :D

Find the derivative r '(t) of the vector function r(t). t sin 6t , t2, t cos 7t Part 1 of 4 The derivative of a vector function is obtained by differentiating each of its components. Thus, if r(t) = f(t), g(t), h(t) , where f, g, and h are differentiable functions, then r'(t) = f '(t), g'(t), h'(t) . For r(t) = t sin 6t, t2, t cos 7t , we have f(t) = t sin 6t, which is a product. Using the Product Rule and the Chain Rule, we have

Answers

Answer:

[tex]r'(t)=(sin(6t)+6tcos(6t),2t,cos(7t)-7tsin(7t))[/tex]

Step-by-step explanation:

We need to find the derivative [tex]r'(t)[/tex] of the vector function :

[tex]r(t)=(tsin(6t),t^{2},tcos(7t))[/tex]

In order to find [tex]r'(t)[/tex], we are going to differentiate each of its components ⇒

We can write the following ⇒

[tex]r(t)=(f(t),g(t),h(t))=(tsin(6t),t^{2},tcos(7t))[/tex] ⇒

[tex]f(t)=tsin(6t)\\g(t)=t^{2}\\h(t)=tcos(7t)[/tex]

Let's differentiate each function to obtain [tex]r'(t)[/tex] :

[tex]f(t)=tsin(6t)[/tex] ⇒ [tex]f'(t)=1.sin(6t)+t.cos(6t).6=sin(6t)+6tcos(6t)[/tex] ⇒

[tex]f'(t)=sin(6t)+6tcos(6t)[/tex]

Now with [tex]g(t)[/tex] :

[tex]g(t)=t^{2}[/tex] ⇒

[tex]g'(t)=2t[/tex]

With [tex]h(t)[/tex] :

[tex]h(t)=tcos(7t)[/tex] ⇒ [tex]h'(t)=1.cos(7t)+t[-sin(7t)].7[/tex] ⇒

[tex]h'(t)=cos(7t)-7tsin(7t)[/tex]

Finally we need to complete [tex]r'(t)=(f'(t),g'(t),h'(t))[/tex] with its components :

[tex]r'(t)=(sin(6t)+6tcos(6t),2t,cos(7t)-7tsin(7t))[/tex]

Which of the following expressions is equivalent to (-7)(-7)(-7)?

Answers

you didn’t put the expressions

Answer:

-343

Step-by-step explanation:

(-7)(-7)=49

(49)(-7)= -343

When Emily woke up, the temperature was 8°F. By noon, the temperature had risen by 3°F. It rose another 6°F in the afternoon to reach the day’s high temperature. By the time Emily went to bed, the temperature had dropped 21°F from the high temperature. What was the temperature when Emily went to bed?

Answers

Answer:

The temperature when Emily went to bed was -4°F.

Step-by-step explanation:

8°F + 3°F = 11°F (noon)

The temperature had risen by 3°F by noon. This means to add 3.

noon + 6°F = the day's high temperature

11°F + 6°F = 17°F (the day's high temperature)

The temperature rose another 6°F in the afternoon. This means add 6 to the temperature from noon.

high temperature - 21°F = temperature at bed

17°F - 21°F = -4°F

The temperature dropped by 21°F when Emily went to bed. This means to subtract 21 from the day's high temperature.  

Risen, rose, and increase mean addition.

Decrease, dropped, and decline mean subtraction.

Hope this helps :)

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Need help on 12 please! What is social service organization? plz some1 help my sister out ! thank you :) After reading "from Deep Survival" by Laurence Gonzales, write an argumentabout what it takes to survive a life-threatening event. Be sure to cite evidencefrom Gonzales's ideas to support your claim.Manage your time carefully so that you can read the passage; plan your essay; write your essay; and revise and edit your essay.Be sure to include a claim; address counterclaims;Your response should be in the form of a multiparagraph essay Michelle is selling notebooks to her classmates so they can be organized in Math class. Each box contains 20 notebooks Each box of notebooks cost $30Michelle wants to make a profit of $20. How much does she need to sell her notebooks to make a profit of $20?How much does she need to sell her notebooks to make a profit of $20? What is the problem with family studies that causes high familial aggregation? A mature ovum travels through the __________ where it may possibly become fertilized. Which of these is a chemical property of a material? density flammability color brittleness helppHELphelpHELPhelp How many moles of hydrogen atoms are present in a 25.2 g sample of propane, C3H8? 5(x - 2) + 2x = 11 can someone help me solve What was the name of the last colony that was under the rule of the british? f(x)=-2 find x if f(x)= 32= 11help Which of the following was the most important group of engineers on the project described in the following scenario? The "Big Dig" in Boston, Massachusetts, redesigned the entire highway system in the city, moving roads underground in many areas. The "Big Dig* required the services of different types of engineers. computer engineers civil engineers manufacturing engineers electrical engineers Which two crops were developed in North and South America? Which of the following is a proportion? 9/12= 8/10 3/4= 9/12 6/8= 8/12 12/18= 9/16 what is k value of 6k-2z=18 The solubility of oxygen in waterA) isn't significantly dependent on temperature.B) is greater in cool liquid water than in warm liquid water.O C) is responsible for thermoclines.D) allows for a greater concentration of O2 in water than in air. Which property would you use first, in solving the equation -4/5x = -2? Explain why the narrator says, ".....it seemed I would be torn apart between longings, split inhalf