Answer: Its C. Its a gas because it evaporated.
Step-by-step explanation:
In a group of 200 children 35 are allergic to peanut. What percentage of children are allergic to peanut?
Answer:
17.5%
Step-by-step explanation:
We know that there are 35 out of 200 allergic to peanut
So we take
35 divided by 200, then times 100% = 17.5%
So, 17.5 of children are allergic to peanut
How do you find the largest and smallest number in an array of 1 100?
The simplest solution for this problem is to traverse the entire array and store the minimum and maximum values.
C++ implementation for the following problem
#include <iostream>
int main(){
int arr[] = {1,2,3,4,5,6,7,8,9...........................99,100}; //initialize array
int min = arr[0]; //start value
int max= arr[0]; //start value
for(int i:arr) {
if(i<min) min=i; // if current number lower update min
if(i>max) max=i; // if current number bigger update max
}
std::cout<<"Min Value: "<<min<<"\nMax Value: "<<max<<"\n";
return 0;
}
The simplest solution for this problem is to traverse the entire array and store the minimum and maximum values.
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Find the slope of -9, -6 and -8, 7
Answer:
m = 13
Step-by-step explanation:
(-9, -6) (-8,7)
The slope is rise/run or ( y2 - y1) / (x2 - x1)
We see the y increase by 13 and the x increase by 1, so the slope is
13/1 or 13
So, m = 13
The sum of n terms of an arithmetic
sequence is 294. The first term is 8 and
the common difference is 2.
Find the number of terms, n, in the
arithmetic sequence.
In ΔQRS, s = 5.2 inches, ∠S=129° and ∠Q=30°. Find the length of r, to the nearest 10th of an inch.
The length of r is 2.4 inches.
What is the law of sines ?
The law of sines specifies how many sides there are in a triangle and how their individual sine angles are equal. The sine law, sine rule, and sine formula are additional names for the sine law.
Given, In ΔQRS, s = 5.2 inches, ∠S=129° and ∠Q=30°
We know that, The sum of all angles of a triangle is 180°.
So, ∠Q + ∠R + ∠S = 180°
∠R = 180° - 129° - 30°
= 21°
Now, We also know that the law of sines specifies how many sides there are in a triangle and how their individual sine angles are equal.
So, q/Sin Q = r/Sin R = s/Sin S
Or, we can say
r/Sin R = s/Sin S
r/Sin 21° = s/Sin129°
r/Sin 21° = 5.2 / Sin 129°
r = 5.2 × Sin 21°/Sin 129°
= 5.2 × 0.46
= 2.4 inches.
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How do you do the mean method?
A data set's mean can be estimated by dividing the sum of all the data points by the total number of data points in the data set.
How is the mean method calculated?
It is calculated by merely dividing the total number of values in a data collection by the sum of all the values in the data set. Both raw data and data that have been combined in a frequency table may be used in the calculation.
What are the mean, median, and example?
The most frequent number, or the one that happens the most frequently, is known as the mode.
Example: Since the number 2 appears three times, more than any other number, it is the mode of the numbers 4, 2, 4, 3, and 2.
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What property of congruence is used for the statement AB ≅ AB?
The congruence's reflexive characteristic is applied to the statement AB ≅ AB.
In algebra, a number is always equal to itself according to the reflexive property of equality. The equality's reflexive quality. Assuming that an is a number, a = a. a=a. We discovered that anything is equal to itself thanks to the reflexive characteristic of equality. This characteristic's formula is a = a. All numbers are equal to one another, according to this property. For instance, three is three.
In mathematics, a set X's elements are considered to be reflexive if there is a relationship between each one of them. This can be expressed in terms of relations as (a, a) R a X or as I R, where I is the identity relation on A. As a result, it is said to hold reflexivity and to have a reflexive feature. Every angle, every line, and every figure or shape in geometry are congruent to one another according to the reflexive characteristic of congruence. This characteristic is typically employed in proofs of parallel lines and the congruence of two triangles.
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[tex](4x + 8) = ...........(x + ............)[/tex]
Some one help me please
Answer:
( 4x + 8) = 4 (x + 2)
Step-by-step explanation:
We have to factor out the GCF
We see that ( 4x+8) have the GCF is 4, so 4 will go outside, and we have left x + 2
So the answer is
(4x+8) = 4 ( x +2)
Which transformations do not result in mapping $(-k,\ k)$ to $(k,\ -k)$ ?
Responses
Reflection in the line $y=x$
Reflection in the line y is equal to x
Reflection in the line y=-x
Reflection in the line y is equal to negative x
Reflection in the y -axis, followed by a reflection in the x-axis
Reflection in the y-axis, followed by a reflection in the x-axis
Translation k units right, followed by a reflection in the y -axis
The transformation of the (-k, k) about the line y = x will be (k, -k). Then the correct option is A.
What is a reflection of the point?It is the image of the point which is located in the opposite direction of a given point.
The rule of the refection will be given as,
Firstly, the rule for reflecting a point about the line y = x is;
While reflecting on the line y = x, we get the reflected points by swapping the coordinates.
Now, the rule for reflecting a point about the line y = -x is;
While reflecting on the line y = -x, we get the reflected points by multiplying '-1' with the swapped coordinates.
The change of the (- k, k) about the line y = x will be (k, - k). Then the right choice is A.
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PLEASE QUICK! What is the sum of 4 3/5+7 8/15?
Enter your answer in the box as a mixed number in simplest form.
Answer: 12 2/15
Step-by-step explanation:
4 3/5 = 23/5
7 8/15 = 113/15
So, we have 23/5 + 113/15. The common factor is 15, so we have
69/15 + 113/15 = 182/15
182/15 = 12 2/15
Which equation represents the graph?
The equation represents the graph is (y+1)² / 9 + (x+3)²/1 = 1 i.e, option(a)
Define Ellipse
In mathematics, an ellipse is the location of points in a plane so that their separation from a fixed point has a fixed ratio of "e" to their separation from a fixed line (less than 1). The conic section, which is the intersection of a cone with a plane that does not intersect the base of the cone, includes the ellipse. The eccentricity of the ellipse is symbolized by the constant ratio "e," the fixed point is known as the focus, and the fixed line is known as the directrix (d).
Standard from of the equation of an ellipse with centre (0,0) and major axis on x-axis is,
x² / a² + y² / b² = 1
Standard from of the equation of an ellipse with centre (H, K) and major axis parallel to the x-axis is,
(x - h)² / a² + (y - k)² / b² = 1
In equation,
(y+1)² / 9 + (x+3)²/1 = 1
Ellipse properties are : (h,k) = (-3, -1) , a = 3, b = 1
b>a therefore b is semi-major axis, a is semi minor axis.
Ellipse Centre are : (h,k) = (-3, -1) , a = 1, b = 3
Hence, the equation represents the graph is (y+1)² / 9 + (x+3)²/1 = 1 i.e, option(a).
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Answer:
Step-by-step explanation: 9x3
9x2
and 9 x 1 then when you get all of the answers but the answers all together now leave me alone pleaseeeeeeeeeeeeee .
The Carnegie children are 3, 24, 18, and 9 years old. What is the median of their ages? what is the mean?
To find the median of a set of numbers, we need to first put the numbers in order from least to greatest. In this case, the ages of the Carnegie children are 3, 9, 18, and 24 years old. Since there are 4 numbers in this set, the median is the average of the middle two numbers, which are 9 and 18. The median of the ages of the Carnegie children is (9 + 18) / 2 = 27 / 2 = 13.5 years old.
To find the mean of a set of numbers, we need to add the numbers together and then divide the sum by the number of numbers in the set. In this case, the sum of the ages of the Carnegie children is 3 + 9 + 18 + 24 = 54 years old. Since there are 4 children, the mean age is 54 years / 4 children = 13.5 years old. Therefore, the mean of the ages of the Carnegie children is 13.5 years old.
Answer:
Median: 13.5
Mean: 13.5
Step-by-step explanation:
To get the median, take the middle value. Since there are two middle values, add them together and divide them by two.
To get the mean, add all the values together and divide the sum by the number of values. In this instance, mean and median are the same.
What is f x )= x 2 called?
the function is [tex]f(x) = x^2.[/tex] The graph is what is known as the basic parabola. Take note of the graph's symmetry about the y-axis. The symmetry axis of this function is known as the y-axis.
What is parabola ?Something bowl-shaped at the intersection of a right circular cone and a plane parallel to an element of the cone: a plane curve produced by a moving point so that its distance from a fixed point is equal to its distance from a fixed line (such as an antenna or microphone reflector). Any point on a parabola, which has the shape of a U, is situated at an equal distance from the focus, a fixed point, and the directrix, a fixed line. Conic section is a topic that includes parabola, and this article covers all of its principles.
equation of tangent line = [tex]y - y1 = m (x - x1)[/tex]
equation of a circle = [tex]x^2 + y^2 + 2gx + 2fy + c = 0[/tex]
equation of hyperbola = [tex][(x2/a2) - (y2/b2)] = 1[/tex]
equation of a line = [tex]y = mx + c[/tex]
equation of slope = [tex]m= \frac{y_2 - y_1}{x_2 - x_1}[/tex]
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Which graph represents the function f(x) = 4⌈x⌉?
The graph that represents the function f(x) = 4[x] is option C.
Option C is the correct answer.
What is a function?A function is a relationship between inputs where each input is related to exactly one output.
Example:
f(x) = 2x + 1
f(1) = 2 + 1 = 3
f(2) = 2 x 2 + 1 = 4 + 1 = 5
The outputs of the functions are 3 and 5
The inputs of the function are 1 and 2.
We have,
f(x) = 4 [x]
[x] is the greatest integer function.
We see that,
f(0) = 4 [0] = 0
f(0.5) = 4 [0.5] = 4 x 0 = 0
f(x) = 0 for 0 ≤ x < 1
f(1) = 4 [1] = 4
f(1.5) = 4 [1.5] = 4 x 1 = 4
f(x) = 4 for 1 ≤ x < 2
f(2) = 4 [2] = 4 x 2 = 8
f(2.5) = 4 [2.5] = 4 x 2 = 8
f(x) = 8 for 2 ≤ x < 2
Thus,
The graph on option C has the required coordinates.
f(x) = 0 for 0 ≤ x < 1
f(x) = 4 for 1 ≤ x < 2
f(x) = 0 for 2 ≤ x < 2
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1.)What does this trend look like?
2.) do the variables show a negative or positive correlation? Or is there no apparent relationship between them?
(Brainliest if you answer and explain)
Answer:
No correlation
Step-by-step explanation: If the graph shows a positive correlation, the correlation would be linear, if its showing a negative correlation , then the correlation would also be linear, but going in a downward slope
Every rhombus is a rectangle. true or false
Answer: false
Step-by-step explanation:
At which root does the graph of f x x 4 6 * x 7 5 cross the x axis?
The roots of the graph of f(x) = (x+4)⁶(x+7)⁵ crosses the x axis at x = -7 .
The Roots of the Graph of the equation is defined as the point at which the curve crosses the x axis , and also the roots satisfy the equation .
the function is given as : f(x) = (x+4)⁶(x+7)⁵ ;
let the function be denoted by y = f(x) .
If the graph crosses x - axis , then the value of y is 0 .
that means ; (x+4)⁶(x+7)⁵ = 0 ;
which implies that , (x + 4) = 0 (x + 7) = 0 ,
simplifying ,
we get ; x = -4 and x = -7 .
we know that if the power of function is even the function bounces from the x axis ,
and if the power of function is odd the function crosses the x axis ,
Therefore , the graph crosses the x axis at x = -7 .
The given question is incomplete , the complete question is
At which root does the graph of f(x) = (x+4)⁶(x+7)⁵ cross the x axis ?
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The point (2,-4), (x,y), A, and B all lie on the line. Find an equation relating x and y (Hint: The lope formula)
The point (2,-4), (x,y), A, and B all lie on the line. An equation relating x and y is m(x-2)=y+4.
The points (2, -4), (x, y) are lie on the line.
The slope formula is the vertical change in y divided by the horizontal change in x, sometimes called rise over run. The slope formula uses two points, (x1, y1) and (x2, y2), to calculate the change in y over the change in x. Slope is a ratio that includes how y changes for every unit increase of x.
The slope formula,
m[tex](x_{2}-x_{1})= y_{2}-y_{1}[/tex]
Here, [tex]x_{1} = 2, x_{2}= x, y_{1}= -4[/tex] and [tex]y_{2}= y[/tex]
Now, we have to substitute the values in the formula,
[tex]m=\frac{y-(-4)}{x-2}[/tex]
[tex]m= \frac{y+4}{x-2}[/tex]
m(x-2)= y+4
Therefore, the equation is m(x-2)=y+4.
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In 2012, the population of a city was 6.79 million. The exponential growth rate was 3.17% per year. a) Find the exponential growth function. b) Estimate the population of the city in 2018. c) When will the population of the city be 9 million? d) Find the doubling time.
1) The function is P(t) = 6.79e^ 0.0317t
2) There would be 8.18 million people in 2018
3) It would take 9 years to reach a population of 9 million
4) The doubling time is 22 years
What is population growth?
We know that population growth has to do with the increase in the population of a place. Let us recall that population growth occurs exponentially and this would help us as we write the function for the population growth.
a) The population growth function is obtained as;
P(t) = 6.79e^ 0.0317t
t = Number of years since 2012.
b) In the year 2018, six years would have passed hence we have;
P(t) = 6.79e^ 0.0317 * 6
P(t) = 8.18 million people
c) The population would be 9 million when;
9 = 6.79e^ 0.0317t
9/6.79 =e^ 0.0317t
1.33 = e^ 0.0317t
ln(1.33) = 0.0317t
t = ln(1.33)/0.0317
t = 9 years
d) The doubling time would be;
2(6.79) =6.79e^ 0.0317t
2(6.79)/6.79 = e^ 0.0317t
ln 2 = 0.0317t
t = ln 2 / 0.0317
t = 22 years
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What is median if mean is 48 and mode is 15?
The median when the mean is 48 and the mode is 15 is 37.
What is the median?The median is the value that divides a data sample, a population, or a probability distribution's upper and lower halves in statistics and probability theory.
It could be referred to as "the middle" value for a data set.
For instance, what is the median of our data set if we know that we have a mean of 10 and a mode of 4?
Since the Mean - Mode is 3, we may state that 10 - 4 equals 3. (10 – Median).
According to some algebra, the median of our data is 8 because 2 = (10 - Median).
So, the values are:
Mean = 48
Mode = 15
Formula: Mean – Mode = 3(Mean – Median)
Now, calculate the median using the formula as follows:
48 – 15 = 3(48– Median)
33 = 144 - 3Median
3Median = 144 - 33
3Median = 111
Median = 111/3
Median = 37
Therefore, the median when the mean is 48 and the mode is 15 is 37.
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Simplify the fraction in it lowest terms
44/60
Answer:
11/15
Step-by-step explanation:
Answer:
Step-by-step explanation:
44/60=22/30=11/15
11/15
Im giving 80 points and i will mark brainliest!!
The table shows the multiplication of two linear expressions. Select the correct reason for each step.
Reason 1:
Reason 2:
Reason 3:
here are the answer choices for the 3 reasons
(A)associative property of multiplication
(B)commutative property of multiplication
(C)istributive property
(D) simplify
Answer:
1. (C) Distributive property | 2. (A) Associative property | 3. (D) Simplify
Step-by-step explanation:
Here's my attempt:
Reason 1:
The first reason is (C) distributive property of multiplication because you're taking the previous step and spreading it out (distributing it). Here's an example of the distributive property of multiplication:
3(4+7) = 3*4+3*7=12+21=33
This will be the same as solving 3(4+7) using PEMDAS
In this step, you're spreading out the problem the same way as the example shown is doing.
Reason 2:
The second reason is (A) the associative property of multiplication. The associative property of multiplication says that changing the grouping of the numbers in a multiplication problem doesn't change the product.
Here's an example:
(6*7)*8 = 6*(7*8)
This way, the step groups together two pairs of factors to solve the last step without changing the product.
Reason 3:
The final reason is (D) Simplify because the step doesn't use the commutative property of multiplication. Why not? Because the commutative property of multiplication states that changing the order of factors in a multiplication problem doesn't change the product (note that this is different than the associative property of multiplication). Instead, the last step just simplifies the problem.
Hopefully, you read through my explanation, and it helped. Have a good day :D
The table shows the multiplication of two linear expressions. Select the correct reason for each step.
Reason 1:
✔ distributive property
Reason 2:
✔ commutative property of multiplication
Reason 3:
✔ associative property of multiplication
Reason 4:
✔ simplify
What is the median of 2 3 4 7 5 and 1?
The median of given data is 4.
Given:
A data
2, 3, 4, 7, 5, 1, 6
To find: The median of given data.
The median of given data is 4.
To answer this question, we will follow the following steps:
As given, we have a data
2, 3, 4, 7, 5, 1, 6
To find the median, we will arrange the data in ascending order.
So, we have,
1, 2, 3, 4, 5, 6, 7
Here,
Total number of observations = 7
As we know if there is an odd number (n) of observations in a data, then its median is obtained by:
So,
The median of given data
Now,
4th observation is 4.
Hence, the median of given data is 4.
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What is the purpose of the ninth?
The purpose of the ninth was to assert the principle that the enumerated rights are not exhaustive and final and that the listing of certain rights does not deny the existence of other rights.
Ninth Amendment:The Ninth Amendment was part of the Bill of Rights added to the Constitution on December 15, 1791. It states that all rights not enshrined in the Constitution belong to the people, not to the US government. In other words, the rights of citizens are not limited to those stipulated in the Constitution. Simply put, the Ninth Amendment declares that the enumeration of certain rights in the Constitution should not be construed as withholding or disrespecting others from people. According to Judge Harry A. Blackman, Roe v. Wade (1973),
, "As we believe, this right to privacy is limited by the Fourteenth Amendment concept of restrictions on individual liberty and government action. The Ninth Amendment to the Constitution contains ample scope, including determining whether a woman should terminate a pregnancy."
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What type of triangles are proved by the Pythagorean Theorem?
Answer:
Right angle triangles
Step-by-step explanation:
the only type of triangles that can be solved with pythagorem theorem is right angle triangles. otherwise you would need to use a different formula
What grade should a 18 year old be in?
According to the given question, we can say that - 18 year old be in the 12th grade as per school requirement .
What is grade?Grading may be done using letters, numbers, percentages, points, or descriptions. The most prevalent grades are in the form of letters, and they usually correspond to a variety of percentages or points. Many people consider "A" and "B" grades to be "good." D and F grades are referred to as "poor grades." Commonly regarded as average is a "C."
We can say that
10th grade = 16 or 17 year old ,
11th grade is = 17 or 18 and 12th grade is = 18 or 19.
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How do you insert a 4 quadrant graph in Word?
Open the Word document. then Go to the Insert tab on the ribbon and click on the Chart option under the Illustrations group.
When does a graph represents a function?
A graph represents a function if it has no vertically aligned points, that is, each value of x is mapped to only one value of y.
How do you insert a 4 quadrant graph in Word?
Open the Word document.
Go to the Insert tab on the ribbon and click on the Chart option under the Illustrations group.
An Insert Charts dialog box will appear on the screen.
Select the XY (Scatter) option from the left pane
and pick a line graph that you want to insert.
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a researcher surveys a random sample of 750 college students about their political views. the researcher's survey contains questions about the following variables: age political affiliation (democrat / republican / other) annual income number of hours worked per week residential status (on-campus / off-campus) the researcher will conduct a chi-square test of independence. which pair of variables can the researcher use?
A pair of Political affiliation and residential status can be used as pair of varibles for which the researcher conduct the chi-square test of independence.
We have a researcher survey random sample of 750 college students about their political views.
This survey contains the following variables,
political affiliation (democrat / republican / other) annual income number of hours worked per week residential status (on-campus / off-campus)A Chi-square test of independence is conducted by researcher and the pair of variables can the researcher use here is political affiliation and residential status. Because the Chi-square independence test is used to determine if there is a significant relationship between two nomial categorical variable.
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Work out the height of this triangle with base, b = 8.2mm and area, A = 227.14mm2.
Answer: the height of this triangle is 55.4 mm
Step-by-step explanation:
[tex]\displaystyle\\Area\ of\ a\ triangle:\ A =\ \frac{ah}{2} \\\\Hence,\\[/tex]
Multiply both parts of the equation by 2:
[tex]2A=ah[/tex]
Divide both parts of the equation by a:
[tex]\displaystyle\\\frac{2A}{a} =h\\\\Thus,\ h=\frac{2A}{a} \\\\h=\frac{2(227.14)}{8.2} \\\\h=\frac{454.28}{8,2} \\\\h=55.4\ mm[/tex]
When a pre-image moves the new shape is called a?
The operation that maps(moves)the preimage onto the image is called a transformation.
What is transformation?
An operation that manipulates a polygon or other two-dimensional object on a plane or coordinate system is known as a transformation. Two-dimensional figures can be transformed mathematically in order to travel about a plane or coordinate system.
The two-dimensional shape without any transformations is known as a preimage or inverse image. The transformed figure is shown in the image.
In mathematics, there are five different transformations:
Dilation is the process of an image "shrinking" or "enlarging," depending on the size of the preimage.
Reflection: The picture is a preimage that has been reversed; "a flip."
Rotation: The picture is the preimage turned around a fixed axis; this is referred to as "a turn."
Shear: When a preimage is sheared, all the points along one side remain stationary while all the other preimage points move parallel to that side in proportion to the distance from the given side; this is also known as "a skew."
Translation: The image is "a slide" away from the preimage by a fixed amount.
The operation that maps(moves)the preimage onto the image is called a transformation.
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