the degree to which an instrument appears to measure what it is supposed to be measuring is referred to as:

Answers

Answer 1
the answer is validity

Related Questions

Find the equation of the line that passes through (4,4) and is parallel to y = 3 x + 4.

Answers

The line's equation that is parallel to the given line is=  3x - 8

What is Equation?

A mathematical statement that has a "equal to" symbol between two expressions with equal values is called an equation. as in 3x + 5 Equals 15, for instance.

Equations come in a variety of forms, including linear, quadratic, cubic, etc.

Equations are mathematical statements with two algebraic expressions flanking the equals (=) sign on either side.

It demonstrates the equality of the relationship between the expressions printed on the left and right sides. We have LHS = RHS (left hand side = right hand side) in every mathematical equation.

To determine the value of an unknown variable that represents an unknown quantity, equations can be solved. The statement is not an equation if there is no "equal to" symbol in it.

According to our question-

The line's equation in the form of the slope intercept is,

y = mx + c

m is the line's slope, and c is its y-intercept.

line equation provided that,

Therefore, the line's slope is

Finding the equation of the line that crosses (4,4) and runs parallel to the provided lines is necessary.

Because all parallel lines have the same slope.

Equation for the necessary line is,

Replace point (4,4) in the line above.

In order for the line equation to become,

3x - 8

Hence, The line's equation that is parallel to the given line is=  3x - 8

learn more about equations click here:

https://brainly.com/question/2972832

#SPJ4

What is the solution of the equation?:
-2(3x+1)-2x=-4(2x)-4

Answers

it doesn't have solution

O
Nolan is going to a carnival that has games and rides. Each game costs $2.50 and
each ride costs $3.50. Nolan spent $52.50 altogether on 17 games and rides. Write a
system of equations that could be used to determine the number of games Nolan
played and the number of rides Nolan went on. Define the variables that you use to
write the system.

Answers

Answer: g + r = 17

2.5g + 3.5r = 52.5

Step-by-step explanation: Let g be the number of games Nolan played and r be the number of rides Nolan went on. We can write the following system of equations to represent the problem:

g + r = 17

2.5g + 3.5r = 52.5

We can solve this system of equations using elimination, substitution, or graphing.

Neha drives a car that gets 25 miles per gallon when she is driving in the city and 40 miles per
gallon when she is driving on the highway. Her car's fuel tank will hold 15 gallons of gas. What
equation can we write to represent all the combinations of city miles and highway miles she can
drive on one tank of gas?
1. Record an equation that is a prediction.

Answers

Answer:

C/25 + H/40 = 15

Step-by-step explanation:

Let's call C the number of city miles, and H the number of highway miles.

The total gas used is therefore:

C/25 + H/40

The fuel tank holds 15 gallons, so:

C/25 + H/40 = 15

What is an equation of the line that passes through the point (5, -8) and is
perpendicular to the line 5x - 4y = 16?

Answers

The equation of the line which is perpendicular to 5x - 4y = 16 is  [tex]y = -\frac{4}{5}x -4[/tex].

What is Coordinate Geometry?

The study of geometry using coordinate points is known as coordinate geometry (also known as analytical geometry). Finding the distance between two points, breaking lines into m:n segments, locating a line's midpoint, computing a triangle's area in the Cartesian plane, and other operations are all feasible using coordinate geometry.

Not all crossing lines are parallel ones. If the intersecting lines satisfy the following conditions, they are said to be perpendicular lines. Following are the two primary characteristics of perpendicular lines:

The intersection of perpendicular lines is always at a right angle.Two lines will always be parallel to one another if they are perpendicular to the same line.

Let's say that lines AB and CD are parallel to one another. Line AB has a slope of m1, whereas line CD has a slope of m2.

If and only if the product of the slopes of the two lines equals negative of unity, two lines are perpendicular to one another.

As a result, the following is the formula for the perpendicular's slope:

m1.m2 = -1

The equation of the line be "y = mx + c".

Equation of the line Perpendicular to the line is 5x - 4y = 16

Therefore,  4y = 5x - 16

⇒ [tex]y = \frac{5}{4}x -4[/tex]

Slope of the line Perpendicular to the required line is [tex]\frac{5}{4}[/tex].

Slope of the required ine be m .

Therefore, m * [tex]\frac{5}{4} = -1[/tex]

⇒ [tex]m = -\frac{4}{5}[/tex].

Equation of the line is ,

[tex]y = -\frac{4}{5}x + c[/tex]

The line passes through (5,-8)

Therefore,

[tex]-8 = \frac{-4}{5}*5 + c[/tex]

⇒ c = -4

The equation of the line is [tex]y = -\frac{4}{5}x -4[/tex].

To learn more about Coordinate Geometry refer to :

https://brainly.com/question/15743926

#SPJ1

If 65% of a number is 208 and 15% of the same number is 48, find 80% of that number.

Answers

The number is 320 and 80 % of the number is 256

What is an Equation?

Equations are mathematical statements with two algebraic expressions flanking the equals (=) sign on either side.

It demonstrates the equality of the relationship between the expressions printed on the left and right sides.

Coefficients, variables, operators, constants, terms, expressions, and the equal to sign are some of the components of an equation. The "=" sign and terms on both sides must always be present when writing an equation.

Given data ,

Let the equation be represented as A

Now , the equation A is

65% of a number is 208 and 15% of the same number is 48

So , 65% of n = 208   be equation (1)

15% of n = 48   be equation (2)

Now , on simplifying the equations , we get

( 15 / 100 ) x n = 48

15n/100 = 48

Multiply both sides by 100 . we get

15n = 4800

Divide by 15 on both sides of the equation , we get

n = 320

The number n can also be determined by

( 65% - 15% ) of n = 208 - 58

50 % of n = 160

So , 100 % on n = 160 x 2

n = 320

Therefore , the number n is 320

Now , the 80 % of the number n is A = 80/100 x 320

A = 320 x 0.8

A = 256

Therefore , the value of A is 256

Hence , The number is 320 and 80 % of the number is 256

To learn more about equations click :

https://brainly.com/question/19297665

#SPJ1

what goes in the missing box

Answers

Answer:

10

Step-by-step explanation:

in the first one, 6 16 8, (6×8)/3=16

in the third one, 9 21 7, (9×7)/3=21

using the same comcept, 5 ? 6, (5×6)/3=10

so, ?=10

Order these numbers from least to greatest.

1.4 comma space 1.04 comma space 16 over 10 comma space 1 1 half

Answers

Answer:

1.04, 1.4, 1.5 (one and a half), 10, 16

Answer:

1.04, 1.4, 1.5, 1.6

Step-by-step explanation:

1 1 half = 1.5

16 over 10 = 1.6

hope this helps!

if 14 meter of ribbion cost 19$ how much will 21 meters cost

Answers

Answer: 21 meters cost $28.5

Step-by-step explanation:

divide 19 by 14 and multiply by 21

21 meters cost $28.5

Janet made 7 1/3 pounds of trail mix. If she puts 1 5/6 pounds into each bag, how many
bags can Janet fill?

Answers

Janet can fill 3 bags, while still having some trail mix left over. The decimal for what she can fill is 3.989 so if your teacher wants you to round then 4.

If [tex]$4^x = 3$[/tex], what is [tex]$4^{2x-2}?$[/tex]

Answers

[tex]4^x=3 \\\\[-0.35em] ~\dotfill\\\\ 4^{2x-2}\implies 4^{2x}\cdot 4^{-2}\implies (4^x)^2\cdot \cfrac{1}{4^2}\implies \cfrac{(4^x)^2}{16}\implies \cfrac{(3)^2}{16}\implies \cfrac{9}{16}[/tex]

Show your work, (I am stuck on this because I’m not smart lol)

Answers

Answer:

She needs to get at least 96 on the 4th test to earn an average of at least 90 in the class.

Step-by-step explanation:

(97+78+89+?) divided by 4 at\geq 90

It is divided by 4 because it is the average of 4 test scores.

To Solve: (97+78+89+?) divided by 4 at\geq 90

Multiply by 4 on both sides 97+78+89+? at\geq 360

Isolate variable: ? at\geq 96

The diameter of a circle is 6 cm. Find its area to the nearest whole number.

Answers

Answer:

28.26

Step-by-step explanation:

A=3.14r^2

A=3.14(3)^2

A=3.14(9)

A=28.26

Answer: 28 cm

Step-by-step explanation: Area=π·r² and diameter =2r

So if we need to  find what our radius is. As shown by d=2r our radius is 1/2 our diameter. If our diameter is 6cm our radius is 3cm.

Now plug 3cm into A= 2πr²⇒ A= 2(3.14)(3²) = 28.26

Now round to the nearest whole number ⇒ 28.

X is a normally distributed random variable with mean 26 and standard deviation 1.
What is the probability that X is between 24 and 28?
Use the 0.68-0.95-0.997 rule and write your answer as a decimal. Round to the nearest
thousandth if necessary.

Answers

Answer: give me brainliset

(

X

>

42

)

=

P

(

Z

>

1.1429

)

             

=

1

P

(

Z

<

1.1429

)

             

=

1

Φ

(

1.1429

)

             

=

1

0.8729

(from tables)

             

=

0.1271

Step-by-step explanation:

when finding 6.1 divided by 0.1 how is the decimal point moved?

Answers

well, let's just divide them anyway and check it out.

hmmm 6.1 ÷ 0.1, well, when dividing decimals, we can first check the decimals on each hmmm 6.1 has one decimal and 0.1 has one decimal, so for the one decimal on 6.1 0.1 gets one "0" and for each decimal on 0.1, 6.1 gets  one "0".

That means we can change the values with no dots to say 610 and 10, so we end up with a division of 610 ÷ 10 = 61.  We can write that as 61.0 hmmm woopsie, the dot moved to the right by one slot.

Caroline is planting flowers in her garden. She plants her first 7 flowers in 4 minutes. After 12 minutes, she has planted 21 different flowers. If caroline keeps planting flowers at this rate, how long will it take her to plant all 70 flowers that she has?.

Answers

It will take 40 minutes for her to plant all 70 flowers that she has. By using proportions, we can find this value.

How to calculate a word problem using proportions?

To calculate a word problem using proportions is as follows:

Consider the details of the word problem in proportions as

a : b = c : d

Here, a: b is the ratio of an event, and c : d is the ratio of another event.

Then, to find the value of c we need to reframe the above proportion into

c = ad/b

This is also said to be a cross formula in terms of word problems.

Calculation:

It is given that, Caroline is planting flowers in her garden.

She plants her first 7 flowers in 4 minutes.

After 12 minutes, she planted 21 different flowers.

Then, she takes x minutes for planting 70 flowers.

(Since the rate of planting is the same)

So, we can write

70 : 21 = x : 12

⇒ x = (70× 12)/21 = 40 minutes

Therefore, Caroline takes 40 minutes for planting all 70 flowers.

Learn more about word problems and proportions here:

https://brainly.com/question/1781657

#SPJ4

how many ways are there to list the letters of the word mathematics so that no two consecutive letters are the same?

Answers

There are 22 different ways to organize the word mathematics because no two consecutive letters are the same.

Explain the term combination?Combinations are mathematical operations that count the number of potential configurations for a set of elements when the ordering of the selection is irrelevant. You can choose the components of combos in any order.

Total number of ways to organize the word "mathematics".

The same letter does not appear twice.

The following word has the letters 2M, 2A, 2T, H, E, I, C, and S.

We will first organize H,E,I,C,S in five different ways;

−H−E−I−C−S−

No, we could arrange 2M, 2T, and 2A as we have 6 gaps;

= 6!/(2!.2!.2!)

So there are a total of;

= 5 x 6!/(2!.2!.2!)

= 22.5

= 22 ways

Thus, there are 22 different ways to organize the word mathematics because no two consecutive letters are the same.

To know more about the combination, here

https://brainly.com/question/28065038

#SPJ4

Jermaine plays classical guitar at a local restaurant in the evenings. If jermaine plays 23 songs per evening, how many songs does he play in 73 evenings?.

Answers

Answer:

1679 songs

Step-by-step explanation:

         23

       x73

----------------------------

            69

    +   1610

-------------------------------

         1679

Pls answer it quickly

Answers

The two-column method can be used to prove that the triangles ΔACD and ΔBCD are congruent is presented as follows;

Statements [tex]{}[/tex]                                         Reasons

1. AC ≅ BC   [tex]{}[/tex]                                        1 Given

2 D is the midpoint of AB [tex]{}[/tex]                  2 Given

3. CD ≅ CD [tex]{}[/tex]                                         3 Reflexive property → CD = CD

4 ∠ACD ≅ ∠BCD [tex]{}[/tex]                               4 Median line of an isosceles triangle bisects the vertex angle

5 ΔACD ≅ ΔBCD  [tex]{}[/tex]                              5. SAS congruency postulate

What is the two-column method used to prove statements in geometry?

The two-column method consists of two columns, including a statement column and a reasons column, in which each statement made is provided with an accompanying reason.

The reasons in the prove for the congruency of the triangles, ΔACD and ΔBCD are as follows;

Reflexive property

The reflexive property of equality indicates that the value of a number or measure is equal to itself, therefore, the length of the segment CD is the same as the length of the segment CD.

Median of an isosceles triangle

In an isosceles triangle, two sides are congruent. The median segment drawn from the altitude of an isosceles triangle forms two congruent segment at the base, such that the two triangles formed by the median line are congruent, by Side-Side-Side, SSS congruency postulate, therefore, the angles formed at the vertex of the triangle by the median segment are also congruent

SAS congruency postulate

The Side-Angle-Side congruency postulate states that two triangles are congruent if two sides and the included angle of one triangle are congruent to two sides and the included angle of the other triangle.

Learn more about the median of a triangle in geometry here:

https://brainly.com/question/29627359

#SPJ1

please help meeeee!!

Answers

Answer:

f(2) = 9

Step-by-step explanation:

to evaluate f(2) substitute x = 2 into f(x) , that is

f(2) = 4(2) + 1 = 8 + 1 = 9

Find the equation of the​ line, in​ lope-intercept form, containing the point ( 5,2. 2) and (9,2. 6)

Answers

The equation of the​ line, in​ slope-intercept form, containing the point ( 5,2. 2) and (9,2. 6) is  y=0.025x+2.375 where 0.025 is the value of slope and 2.375 is the y-intercept.

What is an example of a slope intercept form?

Take into account the slope-intercept form of the equation y = 6 x + 9 y=6x+9. The x and y intercepts are known. When x = 0, the y-intercept also happens, and when y equals 0, the x-intercept also happens. By setting the value of y to 0, we may find the x-intercept.

What is the slope and y-intercept?

The values of the slope and y-intercept reveal details of the relationship between the two variables, x and y. The slope shows how quickly y changes for every unit change in x. When the x-value is 0, the y-intercept shows the y-value.

To calculate the equation of line containing points (5,2.5) and (9,2.6) we will use the formula y=mx+b

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

So, m = (2.6-2.5)/(9-5)

m= 1/40

m=0.025

Now finding b by using formula y=mx+b using x= 5 and y= 2.5

2.5=(0.025)(5)+b

2.5=(0.125)+b

b=2.375

so equation of line is y=0.025x+2.375 in slope-intercept form.

To learn more about slope-intercept form visit:

https://brainly.com/question/1884491

#SPJ4

A drawer contains one pair of brown socks and one pair of white socks. The table shows the possible outcomes, or sample space, for choosing a sock, replacing it, and then choosing another sock.

Answers

Given that the drawer includes one pair of brown socks and one pair of white socks, the likelihood of selecting one sock, replacing it, and then selecting another sock is 1/16.

What is probability?

The area of mathematics known as probability deals with numerical representations of the likelihood that an event will occur or that a statement is true. An event's probability is a number between 0 and 1, where, roughly speaking, 0 denotes the event's impossibility and 1 denotes certainty.

Here,

n(s)=4

n(e)=1

Probability of choosing a sock, replacing it, and then choosing another sock,

=1/4*1/4

=1/16

Probability of choosing a sock, replacing it, and then choosing another sock will be 1/16 as the drawer contains one pair of brown socks and one pair of white socks.

To know more about probability,

https://brainly.com/question/11234923

#SPJ1

If x=6 what is 4x
??????????????

Answers

Answer:

24

Step-by-step explanation:

6*4=24

6 times 4 is 24 …………

The diameter of a circle is 12 ft. Find its area to the nearest whole number.

Answers

Answer:

77.04

Step-by-step explanation:

A=3.14r^2

a=3.14(6)^2

A=3.14(36)

A=77.04

Answer: 113 ft^2

Step-by-step explanation:

42 out of the 84 teachers in a school staff meeting were first-year teachers. What percentage of the teachers in the meeting were first-year teachers? Write your answer using a percent sign (%).

Answers

50%
84-42= 42
There for half where first year teachers

Find the x- and y-intercepts of the graph of -3x + y = 6. State each answer as an
integer or an improper fraction in simplest form.

Answers

Answer:

X-intercept : (-2,0)

Y-intercept : (0,6)

Answer:y-intercept (0,6),x-intercept (-2,0)

Step-by-step explanation:

To find the y-intercept set x=0

-3(0)+y=6

y=6

y-intercept (0,6)

To find the X-intercept set y=0

-3x+0=6

-3x=6

x=-2

x-intercept (-2,0)

One angle measures 27°, and another angle measures (8d − 9)°. If the angles are complementary, what is the value of d?

d = 72
d = 21
d = 3
d = 9

Answers

Answer:

d = 9°

Step-by-step explanation:

When the sum of two angles is equal to 90 degrees, they are called complementary angles.

soln

27° + (8d – 9)° = 90°

27° + 8d – 9° = 90°

27°–9° + 8d = 90°

18° + 8d = 90°

8d = 90° – 18°

8d = 72°

divide both sides by (8)

d = 9°

pls rate as brainliest.

Thanks

write an equation of the line that passes through (7,10) and is perpendicular to the line y=-1/5x-9

Answers

An equation of the line that passes through (7,10) and is perpendicular to the given line is y=5x-25.

Given that, the line that passes through (7,10) and is perpendicular to the line y=-1/5x-9.

What is slope of a line?

The slope of the line is the ratio of the rise to the run, or rise divided by the run. It describes the steepness of line in the coordinate plane.

Here, slope of a line y=-1/5x-9 is m=-1/5.

The slope of a line perpendicular to given line is m1=-1/m2

So, slope =5

Substitute m=5 and (x, y)=(7, 10) in y=mx+c, we get

10=5(7)+c

⇒c=-25

Substitute m=5 and c=-25 in y=mx+c, we get

y=5x-25

Hence, an equation of the line that passes through (7,10) and is perpendicular to the given line is y=5x-25.

To learn more about the slope of a line visit:

https://brainly.com/question/14511992.

#SPJ1

16 miles out of 40 miles

Answers

The 16 miles out of 40 miles. Then the percentage will be 40%.

What is the percentage?

The amount of any product is given as though it was a proportion of a hundred. The ratio can be expressed as a quarter of 100. The phrase % translates to one hundred percent. It is symbolized by the character '%'.

The percentage is given as,

Percentage (P) = [Final value - Initial value] / Initial value x 100

The 16 miles out of 40 miles. Then the percentage is calculated as,

P = (16 / 40) x 100

P = 0.40 x 100

P = 40%

The 16 miles out of 40 miles. Then the percentage will be 40%.

More about the percentage link is given below.

https://brainly.com/question/8011401

#SPJ1

The missing part of the question is given below.

Determine the percentage.

Kona work at a bakery. She baked 3308 muffin. She diplayed the muffin on tray that each hold 12 muffin. How many tray did Kona ue to diplay the muffin?

Answers

Using mathematical operations, we know that Kona needs a 276 trays to display all her 3308 muffins.

What are mathematical operations?

The process of calculating a value using operands and a math operator is known as a mathematical "operation."

The provided operands or integers must follow certain established rules that are associated with the math operator's symbol.

Addition, subtraction, multiplication, division, and modular forms are the five fundamental operations in mathematics.

So, a tray will be needed to display all the cakes:

The total number of muffins is 3308.

Each tray can have 12 muffins.

The total trays needed are:

3308/12

275.66

Rounding off: 276

Therefore, using mathematical operations, we know that Kona needs a 276 tray to display all her 3308 muffins.

Know more about mathematical operations here:

brainly.com/question/28937023

#SPJ4

Other Questions
Drag the tiles to the correct locations. each tile can be used more than once, but not all tiles will be used. some locations will remain empty. chloramine has the chemical formula nh2cl. nitrogen has five valence electrons, each hydrogen has one valence electron, and chlorine has seven valence electrons. complete the lewis structure for this covalent compound. an uppercase n indicates the symbol of the nitrogen atom. an uppercase h indicates the symbol of the hydrogen atom. a dash indicates a single bond. a vertical line. parallel double dashes indicate a double bond. three parallel dashes indicate a triple bond. two solid dots represent a lone pair of electrons. two solid vertical dots represent a lone pair of electrons. one solid dot represents an electron. identify the high-temperature molar specific heat at constant volume for a triatomic ideal gas of the linear molecules. which of the following best describes a limitation of long-term hedging? hedging with currency call options on payables requires the mnc to sell that currency. repeatedly hedging short-term payables always leads to lower cash outflows than long term hedging. when engaging in long-term hedging, exchange rate exposure in the distant future is not known. there are no limitations to long-term hedging. this is the most common third-party intervention, and negotiators surrender control over the process while maintaining control over outcomes. is the meaning of _____ Can anyone help me with an kite runner essay about redemption? A particle is moving along the x axis such that its position is given by x =3t-16t+8. What are the velocity and acceleration of the particle at t = 4s? At what time is the particle stationary? what term is used for the muscles and glands whose activities are controlled by nervous activity? for14. Ammonium carbonate is a white solid that decomposes with warming. It has many uses,example, as a component in baking powder, fire extinguishers, and smelling salts.(a) How many formula units are in 41.6 g of ammonium carbonate?(b) How many O atoms are in this sample? are individual differences stable over time? according to the text, research suggests that and that this can be attributed to . The highest temperature ever recorded in the UK was 101.3F, recorded in Kent in 2003.How many degrees Celsius was this?a. 38.5 Cb. 39.5 Cc. 56.3 Cd. 214.3 C whats cause and effect mean 1. What is the atomic mass of the new atom?2. What is the atomic number of the new atom?3. What is the symbol of the new atom?4. What type of decay is demonstrated here? ABC Manufacturers conducts commercial transactions across national boundaries. ABC Manufacturers would be classified as a(n) [blank]. O large business O franchise international business foreign licensed company a nurse is caring for a client with dementia. a family member of the client asks what the most common cause of dementia is. which response by the nurse is most appropriate? At noon, ship A is 10 nautical miles due west of ship B. Ship A is sailing west at 16 knots and ship B is sailing north at 21 knots. How fast (in knots) is the distance between the ships changing at 4 PM? (Note: 1 knot is a speed of 1 nautical mile per hour.) What would happen to the concentrations of pyruvate, nadh and intermembrane h+ if glycolysis stopped working?. Manuel is preparing for a group discussion about Adichie's use of rhetorical strategies. Read the excerpt from "The Danger of a Single Story" by Chimamanda Ngozi Adichie. Power is the ability not just to tell the story of another person, but to make it the definitive story of that person. The Palestinian poet Mourid Barghouti writes that if you want to dispossess a people, the simplest way to do it is to tell their story and to start with, "secondly. " Start the story with the arrows of the Native Americans, and not with the arrival of the British, and you have an entirely different story. Which question would be best for Manuel to ask about ethos? How does ethos support Adichie's purpose? Does the ethos connect with the audience? Is ethos more impactful than logos in this passage? Why does Adichie use ethos rather than pathos? A university will spend at most $4,500 to buy monitors and keyboards for a computer lab. Each monitor will cost $250, and each keyboard will cost $50.Which inequality represents all possible combinations of x, the number of monitors, and y, the number of keyboards, the university can buy for the computer lab?fifty x plus two hundred fifty y, symbol, four thousand five hundredtwo hundred fifty X, plus fifty Y, symbol, four thousand five hundredtwo hundred fifty X, plus fifty Y, symbol, four thousand five hundred.fifty X plus two hundred fifty Y, symbol, four thousand five hundred... What factors or characteristics do you think are necessary to succeed in the Metaverse from a business perspective? "i am not an inmate... i am a man" what is the central idea