Answer:
23+32−5+12 is the equaequation simplified
Step-by-step explanation:
What are the properties of a linear function?
The graph of a linear function is a straight line. One independent variable and one dependent variable make up a linear function.
A linear function is what?Equations (functions or graphs) that create a straight line when graphically depicted are known as linear functions.
Typically, linear functions take the following form: y=mx+b or f(x)=a+bx.
X and Y are the two variables of a linear function.
Independent variable: x (Hori. axis)
dependent variable for y (Vert. axis)
How are linear functions calculated?Replace the problem's value with the value of f (x).
Distinguish the variable. In this instance, you transfer the constant term over by adding 1 to both sides to isolate the variable term.
Keep isolating the variable.
X serves as the independent variable while
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The temperature of magnesium must be at least 650 degrees for the metal to melt. a sample of magnesium is currently 255 degrees. the temperature of the magnesium is increased by 10 degrees every minute. which inequality shows the number of minutes (m) needed to raise the temperature to the melting point?
a. m > 39.5
b. m ≥ 39.5
c. m > 87.5
d. m ≥ 87.5
It will take at least 39.5 minutes to raise the temperature of the magnesium sample to its melting point.
B. m ≥ 39.5
Formula:
[tex]m ≥ (650 - 255)/10[/tex]
We can use the formula [tex]m ≥ (650 - 255)/10[/tex] to solve for the number of minutes (m) needed to raise the temperature of the magnesium from 255 degrees to the melting point of 650 degrees.
First, we subtract the initial temperature of 255 degrees from the melting point of 650 degrees. This gives us 395.
Then, we divide 395 by 10, which is the number of degrees the temperature is increasing every minute. This gives us the result of 39.5 minutes.
Therefore, the answer is m ≥ 39.5, which means that it will take at least 39.5 minutes to raise the temperature of the magnesium to the melting point.
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You volunteer to help drive people home from an event. There are 18 people who need rides, but you can only fit 7 of them in your vehicle. How many different groups of 7 people can you drive? 5,040 31,824 22,913,280 160,392,960.
The number of different groups of 7 people who can drive will be 31,824.
A permutation is an act of arranging items or elements in the correct order. Combinations are a way of selecting items or pieces from a group of objects or sets when the order of the components is immaterial.
You volunteer to help drive people home from an event. There are 18 people who need rides, but you can only fit 7 of them in your vehicle.
Then the number of different groups of 7 people can you drive will be
Different ways = ¹⁸C₇
Different ways = 18! / [(18 - 7)! x 7!]
Different ways = 18 x 17 x 16 x 15 x 14 x 13 x 12 x 11! / (11! x 7 x 6 x 5 x 4 x 3 x 2 x 1)
Different ways = 31824
The number of different groups of 7 people who can drive will be 31,824.
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Then the number of different groups of 7 people can you drive will be
Different ways = ¹⁸C₇
Different ways = 18! / [(18 - 7)! x 7!]
Different ways = 18 x 17 x 16 x 15 x 14 x 13 x 12 x 11! / (11! x 7 x 6 x 5 x 4 x 3 x 2 x 1)
Different ways = 31824
The number of different groups of 7 people who can drive will be 31,824.
If EG = 19 and FG = 12, then EF
Answer:
EF = 7
Step-by-step explanation:
Take EG - FG = EF
19 - 12 = 7
So, the answer is EF = 7
Haruki took a total of 12 quizzes over the courses or 2 weeks. After a school vacation, he took 18 quizzes over the span of 3 weeks. How many quizzes does Haruki take per week?
Answer:6 quizzes over 1 week
Step-by-step explanation: because if u add 6 + 6+ 6 that 18 so ya
If the jumping price is $18. 50 per hour and the fee for socks is $3. 25 , what is the total cost, in dollars, for the 5 friends to jump for one hour?.
Answer:
let x = total cost
SOLUTION:x = 5(18.5 + 3.25)
x = 5(21.75)
x = $108.75
CHECKING:
108.75 = 5(18.5) + 5(3.25)
108.75 = 92.5 + 16.25
108.75 = 108.75
Therefore, the total cost will be $108.75.
Step-by-step explanation:
heart and star pls <3 brainliest will be appreciated <3(っ◔◡◔)っ -{ elyna s }-How do you know if it's a function or Nonfunction?
A function is a relationship between a set of possible inputs and outputs, where each input is associated with exactly one output.
A non-function is a relation between a set of inputs and a set of possible outputs where there is at least one input with more than one output.
The vertical line test can be used to ascertain whether a relation is a function. If you can draw a vertical line through the graph of the relationship and it intersects the graph at more than one point, then the relation is a non-function. If the vertical line intersects the graph at only one point, then the relation is a function.
Another way to determine if a relation is a function is to look at the equation defining the relation. If the equation does not contain any x's in the denominator, then the relation is a function. If the equation contains x's in the denominator, then the relation is a non-function.
For example, consider the relation defined by the equation y = x^2. This relation is a function because there are no x's in the denominator.
On the other hand, consider the relation defined by the equation y = 1/x. This relation is a non-function because the equation contains an x in the denominator.
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What are the 3 arguments for the range function?
The Python range() method needs three arguments to work: start value, stop value, and step value. after increasing the values by the step value's stated amount.
what are range ?For a specific data collection, the statistical range is the range of values between the highest and lowest values. The difference between the highest and lowest observation can also be used to illustrate the range. Subtracting the highest number from the lowest yields the sample interval. The sample range is a crucial indicator of variability for variables that are continuous.
here ,
The series of integers returned starts with this integer, startNumber (optional).
stopNumber: This number is the last in the series of integers returned by range().
the stepValue (optional): An integer value indicating how much each successive integer differs from the previous one.
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a report tells us that in 2009, there were 870 gray wolves in idaho, but that the population declined by 19% that year. for purposes of this problem, we assume that this 19% annual rate of decrease continues. (a) find an exponential model that gives the wolf population w as a function of the time t in years since 2009. w
The proposed Exponential decay model for wolf population, w is given by w(t) =w(1-r)∧t, where w is the function of time, t
w(t) =870(1-0.19)∧t
What is exponential decay model?The model that estimates the number of populations decreases at a particular rate with the passage of time.
How will be our model for the question?In the above question, rate of decay denoted by r = 19%
population size, w= 870 during the year 2009.
the population size w is the function of time, t
now, exponential decay model will be w(t) = w (1-r)∧t
Now using the given data, w(t) = 870(1-0.19)∧t
hence, exponential decay model is w(t) = 870(1-0.19)∧t
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Piper is building a walkway with a width of xx feet to go around a swimming pool that measures 7 feet by 6 feet. If the total area of the pool and the walkway will be 506 square feet, how wide should the walkway be?
According to the given statement the width of the walkway (x) is 8 feet.
How do you square an example?Four of the sides of a square's two-dimensional form are equal in length. In a square, all four internal angles were right angles, and the opposing sides are parallel to one another. Real-world examples of square-shaped things include floor tiles, tea towels, hexagonal tiles, cheddar cheese, and so on.
Briefing:Area of a Square = (side)(side)
Total area of the pool and walkway = 506 sq. ft
Length of the pool and walkway = 7 + 2x
Width of the pool and walkway = 6 + 2x
Thus, we will have the equation of the total area as:
(7 + 2x)(6 + 2x) = 506
4x² + 12x + 14x + 42 = 506
4x² + 26x + 42 = 506
4x² + 26x + 42 - 506 = 0
4x² + 26x - 464 = 0
2x² + 13x - 232 = 0
[tex]x = - \frac{\sqrt{169 + 1856}}{4}- \frac{13}{4} ,\\\\\quad x = \frac{\sqrt{2025}}{4} - \frac{13}{4} \\\\\quad x = \frac{45}{4}- \frac{13}{4} \\\\[/tex]
x = 8
so, the width of the walkway (x) would be 8 feet.
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CollegeBoard AP Classroom Unit 7 Progress Check: MCQ DaVon Wood 9 12 16 18 Question 2 The rate of change of the volume V with respect to time t of water leaking from a tank is proportional to the cube of the volume. Which of the following is a differential equation that could describe this relationship? dy =-1.4+3 B dV de = -0.2V3 C dV =0.75+3 D AP = 0.15V3
The differential equation that could describe this relationship is → d²V/dt² - (3KV²)dV/dt = 0.
What is the meaning of differential equations?In Mathematics, a differential equation is an equation with one or more derivatives of a function. The derivative of the function is given by dy/dx. In other words, it is defined as the equation that contains derivatives of one or more dependent variables with respect to one or more independent variables.Given is that the rate of change of the volume {V} with respect to time {t} of water leaking from a tank is proportional to the cube of the volume.
We can write the proportional relationship as -
{dV/dt} [tex]$\alpha[/tex] {V}³
Replacing the proportional relationship as -
dV/dt = KV³ {K is constant}
d²V/dt² = K x d/dt (V³)
d²V/dt² = K x 3V² (dV/dt)
d²V/dt² = 3KV²(dV/dt)
d²V/dt² - (3KV²)dV/dt = 0
Therefore, the differential equation that could describe this relationship is → d²V/dt² - (3KV²)dV/dt = 0.
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suppose an actual census showed that 18.4% of the households in california have incomes in excess of $50,000. the probability that the sample proportion will be 0.22 or greater for a random sample of 750 households is:
the probability is 0.00539 for the household whose income is excess of $50000.
what is probability?the ratio of favorable outcome to total possible outcome.
What is proportion?the ratio of the size of random sample to the actual size.
Given, sample proportion p∧ ≥0.22
size of random sample, p= 750
now, size of household, n = p/p∧ =750/0.22= 3409
number of households shown in census= 18.4%
now the probability = number of favorable outcome/ total possible outcome.
probability of gaining income excess of $50000 is 18.4/3409 = 0.00539
hence, 0.00539 is the proportion whose income is excess .
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A recording error is an error of observation.
Group of answer choices
True
False
Answer:
true
Step-by-step explanation:
click'thanks'on the question page
and follow
Laura is 4 times as older as her daughter. In 16 years she will be only twice as old as her daughter. what is laura's percentage age?
Answer:
8 years old and Laura is 32
Step-by-step explanation:t
Let the daughter be equal to "x".
Laura would be "4x".
In 16 years Laura will be twice as old can be expressed as this:
4x+16=2(x+16)
Solve:
4x+16=2x+32
2x=16
x=8
Therefore at present time, the daughter is 8 years old and Laura is 32.
What's the relationship between the volume of the pyramid inscribed in a cube and the volume of the cube?
The relationship between the volume of the pyramid inscribed in a cube and the volume of the cube can be determined by comparing both. The volume of cube is three times the volume of the pyramid inscribed in the cube.
Let us say the cube is of side a. Then for a pyramid inscribed in the cube the base is the surface of the cube with dimensions a×a and is of height a.
Volume of a cube of side a is a³.
Vc = a³
Volume of a pyramid of base l×b and height h is given by
V = l×b×h/3
Therefore in this case volume of pyramid is
Vp = (a×a×a)/3
Vp = a³/3
Thus Vp = Vc/3, or we can say Vc = 3Vp.
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Points on a perpendicular bisector of a line segment are equidistant from the segment’s endpoints.
a. True
b. False
Answer:If a point is on the perpendicular bisector of a segment, then it is equidistant from the endpoints of the segment. In addition to the Perpendicular Bisector Theorem, we also know that its converse is true.
Step-by-step explanation:
Points on a perpendicular bisector of a line segment are equidistant from the segment’s endpoints.
a. True
The graph represents a quadratic function. Write an equation of the function in standard form.
The equation for the quadratic function in standard form is 4x² - 16x - 9
Writing Quadratic equationFrom the question, we are to write an equation for the quadratic function in standard form.
From the given quadratic graph,
The roots of the function are -0.5 and 4.5.
That is,
x = -0.5 and x = 4.5
That is,
x = -1/2 and x = 9/2
Therefore,
2x = -1 and 2x = 9
The factors of the quadratic function are (2x + 1) and (2x - 9)
Thus,
We can write that
(2x + 1)(2x - 9) = 0
4x² - 18x + 2x - 9 = 0
Simplify
4x² - 16x - 9 = 0
Hence, the equation is f(x) = 4x² - 16x - 9
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What is the median of the following numbers 8 1 2 6 1 4?
The median for the next batch of observations is 2.
What is median?The median is the value in the middle of a data set, which indicates that 50% of the data points have a value less than or equal to the median, and 50% have a value greater than or equal to the median. The median is the number in the middle of a set of numbers. The median represents the 50th percentile of the set of numbers. In other words, the median is the value in the center of a set of numbers where half are less than the median and half are more than the median.
Here,
given set of observation,
=1,1,2,4,6,8
n=6
median=6/2
=3rd term
=2
The median for following set of observation is 2.
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What is the standard deviation of 2 4 6 and 8?
The calculated value of standard deviation for the given data set is 2.236.
What is standard deviation?Standard deviation is the measure of dispersion of the observed values relative to the mean value. It indicates how far each value is apart from mean value.
How to calculate the standard deviation of the given data set?we have data list 2 4 6 8
the list is denoted by X and X² is the square of the data set
X X²
2 4
4 16
6 36
8 64
we add all the data, and the result is ∑X = 20
similarly, we add all the squared value, and the result is ∑X² = 120
Standard deviation is calculated by using the formula below
SD = √[∑X²/N - (∑X/N)²]
here, N denotes the amount of data set
hence, N= 4
SD = √[120/4 - (20/4)²] = 2.236
hence, standard deviation is 2.236
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3x+2=5x-6 i need the answer for x
Answer:
x=4
Step-by-step explanation:
3x+2=5x-6
3x+2-2=5x-6-2
3x=5x-8
3x-5x=5x-8-5x
-2x=-8
divide by -8 by -2
x= 4
What is meant by preimage?
The preimage of a value z by the function f are all the values for which the function f(x)=z.
What is preimage?
The preimage of a value z by the function f are all the values for which the function f(x)=z.
According to the given question:
As a simple example, consider the function f(x) = √x . The preimage of 5 is 25; for ℕ(the set of natural numbers) it is the set of all perfect squares in ℕ
PREIMAGES OF SET: The pre Given a function f:A→B , and D⊆B , the preimage D of under f is defined as
f−1(D)={x∈A∣f(x)∈D}.(5.4.5)
Hence, f−1(D) is the set of elements in the domain whose images are in C . The symbol f−1(D) is also pronounced as “ f inverse of D .”
The preimage of a value z by the function f are all the values for which the function f(x)=z.
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what is a if a/5 minus 8 equals 4?
Answer:
a = 60
Step-by-step explanation:
a/5 - 8 = 4
a/5 = 12
a = 60
Answer:
a = 60
Step-by-step explanation:
a/5 - 8 = 4
a/5 = 4 + 8
a/5 = 12
a = 5*12
a = 60
Check:
60/5 - 8 = 4
12 - 8 = 4
If a€R then multiplicative inverse of a is ?
Answer:
[tex]\frac{1}{a}[/tex]
Step-by-step explanation:
the product of a number and its multiplicative inverse = 1 , then
a × [tex]\frac{1}{a}[/tex] = 1
multiplicative inverse of a is then [tex]\frac{1}{a}[/tex]
What is the value of 7 9 of 45 answer?
The complete and simplified answer to the question what is 7/9 of 45 is 35.
The number above the fraction line is called the numerator and the number below it is called the denominator. To work out the fraction of any number, we first need to convert that whole number into a fraction as well.
Any number can be converted to fraction if you use 1 as the denominator:
45 / 1
So now that we've converted 45 into a fraction, to work out the answer, we put the fraction 7/9 side by side with our new fraction, 45/1 so that we can multiply those two fractions.
All we need to do is convert the whole number to a fraction and then multiply the numerators and denominators.
7 × 45 / 9 × 1 = 315 / 9
In this case, our new fraction can actually be simplified down further. To do that, we need to find the greatest common factor of both numbers.
You can use our handy GCF calculator to work this out yourself if you want to. We already did that, and the GCF of 315 and 9 is 9.
We can now divide both the new numerator and the denominator by 9 to simplify this fraction down to its lowest terms.
315 / 9 = 35
9 / 9 = 1
When we put that together, we can see that our complete answer is:
35 / 1
The complete and simplified answer to the question what is 7/9 of 45 is:
35
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Sean can walk 2 1/4 miles in 2/3 hour.
At this rate, how far can he walk in 1 hour?
Answer:
3.375 or 3 3/8
Step-by-step explanation:
divide 2 1/4 to get 1 1/8 or 1.125 then multiply by 3 to get 3.375 or 3 3/8
In what circumstances would an employee not qualify for SSP?
If the employee received maximum SSP in 28 weeks, then he or she is not qualified.
Here we have to identify the reason for the rejection of SSP for the employee.
In order to find the reason, we must know that is meant by SSP.
The term SSP refers a tool used to coordinate the supply and distribution of ad inventory to and from advertisers
Based on the definition, we have identified that if the employees does not qualify for SSP if they have received the maximum amount of SSP in last 28 weeks are getting Statutory Maternity Pay or Maternity Allowance then there are special rules for pregnant women and new mothers who do not get these payments.
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Why is the square of i 1?
Let x=(i+1)^2. So the square of given expression will be x= 2i.
What is meant by square?A square in mathematics is produced by multiplying a number by itself. To describe this operation, the term "to square" is employed. For example, the square of 3 may be expressed as 3^2, which is the number 9, since squaring is the same as raising to the power 2. Squaring is indicated by a superscript 2.
How do you find square?We'll examine the square of any number, which we'll refer to as "n." The square of the digit "n" is represented by the symbol "n^2," and it can be determined by multiplying n by n.
(i+1)^2= i^2+1+2i
= -1+1 +2i
=2i.
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Values for relation g are given in the table. Which ordered pair would be found in the inverse of g?.
The ordered pair found in inverse of g is ( 1 , 4 ) .
Given :
Relation :
A function is a relation which describes that there should be only one output for each input (or) we can say that a special kind of relation (a set of ordered pairs), which follows a rule .
Values for relation g are given in the table:
X Y = g( X )
5 -3
4 1
3 -2
2 0
then the table for g inverse will be:
X Y = g^-1 ( x )
-3 5
1 4
-2 3
0 2
Hence, the ordered pair found in inverse of g is ( 1 , 4 )
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Full question :
Values for relation g are given in the table. Which ordered pair would be found in the inverse of g?.
X Y = g( X )
5 -3
4 1
3 -2
2 0
Why are rigid transformations important?
Rigid body motion is a change that preserves space's geometric characteristics. It is a distance-preserving map or isometric since Euclidean qualities may be described in terms of distance.
What is rigid transformations?The separation between each pair of the geometric object's points is preserved during a rigorous change of the object. In other words, a rigid transformation maintains the object's size and shape. For instance, the rigid transformation of a triangle retains the angles and lengths of the triangle. Imagine a stiff shape distortion, similar to a cardboard shape. The form remains the same after being pushed left and right, rotated, and flipped. When the mold was created using putty, the opposite was true. The thing can then be twisted and stretched. These conversions, nevertheless, are not exact. Stretching a form alters the distances between each pair of its points.
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How do you solve parallel and perpendicular lines with equations?
The equations allow us to compare the slopes of two lines to determine if they are parallel. The lines are parallel if the slopes are the same and the y-intercepts are different. The lines are not parallel if the slopes differ.
Perpendicular lines do meet, but parallel lines do not. They meet at a straight angle, or 90 degrees.Different perpendicular lines have different slopes. There is a distinct difference in the slopes of perpendicular lines.
One line's slope is equal to the other line's slope's negative reciprocal. A number's reciprocal and its product equal one. If m 1 and m 2 are negative reciprocals of one another, then multiplying them together will result in the number 1.
As with parallel lines, we can determine whether two lines are perpendicular by comparing their slopes. The slope of each line below is the negative reciprocal of the other so the lines are perpendicular.
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The slope of one line is equal to the negative reciprocal of the slope of the other line. The product and reciprocal of a number are both one. The outcome of multiplying m 1 and m 2 together if they are the negative reciprocals of one another is 1.
Similar to parallel lines, we can compare the slopes of two lines to determine if they are perpendicular. Each of the lines below has a slope that is the negative reciprocal of the other, making them perpendicular.