Answers
When you look at the line plot you can see, that the point is open meaning that 2.5 is not a possible answer for the equation. Also, the line goes to the right meaning that the values for the possible solutions have to greater than 2.5. In other words the solution for the graphed inequality are the numbers greater than 2.5 but 2.5 is not part of the solution.
The correct answer is all real numbers greater than 2.5.
Related Questions
Will 4in. 3in. and 5in. form a triangle?
Answers
Question 10 please :(
Answers
m=1.25
Janet has 1.25 remaining in her savings.
What is (-34) divided by (1.2) rounded to the nearest hundredth
Answers
-28.33 is your answer.
x+3y=0 9y=-3x how many solutions does this system have
Answers
The system of equations x + 3y = 0 and 9y = -3x is actually the same line, therefore there are an infinite number of solutions since the equations represent the same line with a slope of -3 and y-intercept of 0.
Explanation:The student has given the linear equations x + 3y = 0 and 9y = -3x. To determine how many solutions this system has, we need to normalize the second equation. If we divide the second equation by 9, we get y = -\frac{1}{3}x, which, when reorganized, becomes x + 3y = 0. These two equations are actually the same line. In other words, every solution of the first equation is also a solution of the second equation, and vice versa.
Therefore, the system of equations has an infinite number of solutions because the lines represented by these equations overlap; they are the same line. This is an example of a dependent system where both equations represent the same relationship between x and y. In graph terms, the slope (m) of both lines is -3, and their y-intercept (b) is 0. This is evident from both the algebraic expression of the equations and from their graphical representation.
The system of equations has one solution.
Explanation:The given system of equations is:
x + 3y = 0
9y = -3x
To solve this system, we can use the second equation to express y in terms of x.
Dividing both sides of the second equation by 9, we get:
y = (-3/9)x
Simplifying, we have:
y = (-1/3)x
We can observe that the equations of the lines represented by both equations in the system have the same slope, which is -1/3.
Since the lines have the same slope but different y-intercepts (0 for the first equation and 0 for the second equation), they will intersect at exactly one point, resulting in one solution for the system of equations.
I need help on any of these y’all can help on. Plzzz. (points)
Answers
1.) A(2,2), B(5,4), C(5,1) You have to reflect over the x-axis. And over the axis is (+,-), so the y-intercept must be negative. And the answer to that is simple: A'(2,-2), B'(5,-4), C'(5,-1). For reflection, all you have to do change the signs depends what quarter you on: Q1(+,+), Q2(-,+), Q3(-,-), Q4(+,-).
2.) A(-1,2), B(2,-1), C(5,2), D(2,5) Now this is the part you need to pay close attention on. As you can see figure A is already over y-axis, but that doesn't mean you can't reflect it. It means you got the new y-axis, which is: (-2,0).
So the answer is this: A'(-3,2), B'(-4,-1), C'(-7,2), D'(-4,5).
3.) B(1,-2)=>B'(1,2) Remember what we discuss before, "...all you have to do is change the signs depends what quarter you on...." And that actually what this showing us, now you have figure it out whether it reflect over x-axis or the y-axis. You notice that only the y-intercept had change the signs, so it must be: x-axis. Because only Q4 is reflecting to Q1.
4.) J(-3,5)=>J'(-3,-5) Okay, J is the point for Q2 and J' is for Q3. The answer is it reflect over the x-axis.
5.) W(-7,-4)=>W'(7,-4) W in Q3 and W' in Q4. It reflect over the y-axis.
6.) Same as we did for question 2, we got the new y-axis (which is (-1,0)). The question is asking us what is the when we reflect X(4,2) over y-axis. And the answer is X'(-5,2).
7.) Same as the previous question, Y(4,4) over y-axis and the answer is: Y'(-6,4).
8.) Z(0,2) the answer is Z'(-2,2).
9.) For this question, it asking us to graph the whole triangle that is reflect it from the original triangle over the x-axis. The correct answer is: X'(4,-2), Y'(4,-4), Z'(0,-2).
Well that's all folks!! LOL! But I hope this helps you alot.
540 seconds how many minutes
Answers
540 seconds = 540 * 0.0167 ≈ 9 minute
Hope this helps :)
Angles A, B, and C represent the three angles of triangle ABC. If the measure of angle A is (4x - 8)°, the measure of angle B is (5x+2)°, and the measure of angle C is (6x-9)°, what is the measure of angle B (in degrees)?
Answers
4x - 8 + 5x + 2 + 6x - 9 = 180
15x - 15 = 180
15x = 180 + 15
15x = 195
x = 195/15
x = 13
B = 5x + 2
B = 5*13 + 2
B = 65 + 2
B = 67 <<<<< answer.
please help! im bad at this!
Answers
anyone know the answer?
Answers
Hope this helps!! ;))
Have a grat day!! <3
Is 11 to 15 correct?
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12. Correct
13. The answer is 75.
14. Correct
15. The answer is -3.
Hope I helped☺☺
Remember to follow PEMDAS and 'what you do to one side [ because of equal sign] you do to the other'
11) 3n - 8 = 4
3n - 8 (+8) = 4 (+8)
3n = 12
3n/3 = 12/3
n = 4
12) 2n - 3 = 9
2n - 3 (+3) = 9 (+3)
2n = 12
2n/2 = 12/2
n = 6
13) n/5 -4 = 11
n/5 - 4 (+4) = 11 (+4)
n/5 = 15
n/5(5) = 15(5)
n = 75
14) z/2 + 1 = 9
z/2 + 1 (-1) = 9 (-1)
z/2 = 8
z/2(2) = 8(2)
z = 16
15) 2y + 16 = 10
2y + 16 (-16) = 10 (-16)
2y = -6
2y/2 = -6/2
y = -3
16) 3n + 2 = 12
3n + 2 (-2) = 12 (-2)
3n = 10
3n/3 = 10/3
n = 10/3 or 3.33 (repeating)
hope this helps
The table shows the number of hours two groups of teens spent on science and math homework last week. Each group was made up of 10 teens. 13- to 14-year olds 10 9 11 8 10 10 2 7 8 12 15- to 16-year olds 12 10 8 11 12 12 6 4 4 10 Select from the drop-down menus to correctly complete each statement. The mean hours the groups of teens spent studying is , The range for the two groups of of teens is .
Answers
1. About the same.
2. Greater for the 13 - 14 year old's.
Hope this helps!
Answer: The mean hours the groups of teens spent studying is little bit greater for 15- to 16-year old teen or about same .
The range range for the two groups of of teens is greater for 13- to 14-year old teens.
Step-by-step explanation:
We know that the mean of a data is given by :-
[tex]\text{Mean}=\dfrac{\text{Sum of all observations}}{\text{Number of observations}}[/tex]
Range = largest observation - least observation
From the given table :
The mean hours spent by 13- to 14-year olds is given by :-
[tex]\text{Mean}=\dfrac{87}{10}=8.7[/tex]
[tex]\text{Range=12-2=10}[/tex]
The mean hours spent by 15- to 16-year olds is given by :-
[tex]\text{Mean}=\dfrac{89}{10}=8.9[/tex]
[tex]\text{Range=12-4=8}[/tex]
The mean hours the groups of teens spent studying is little bit greater for 15- to 16-year old teen or can say about same.
The range range for the two groups of of teens is greater for 13- to 14-year old teens.
At the end of 2005, the national debt for the U.S. was about 10 trillion dollars, and the population of the U.S. was about 10 to the 8th power. About how much was the per capita (per person) debt?
Answers
Final answer:
To find the per capita debt in 2005, divide the national debt of $10 trillion by the U.S. population of 100 million. The per capita debt comes out to be approximately $100,000 per person.
Explanation:
To calculate the per capita debt, we need to divide the national debt by the population of the U.S. The question states that the national debt at the end of 2005 was about $10 trillion, and the population was about 10 to the 8th power (100,000,000). To find the per capita debt, we perform the following calculation:
Per Capita Debt = Total National Debt / Population
= $10,000,000,000,000 / 100,000,000
= $100,000
Thus, the per capita debt was approximately $100,000 per person at the end of 2005.
Assume that when adults with smartphones are randomly selected, 46% use them in meetings or classes. If 9 adult smartphone users are randomly selected, find the probability that at least 6 of them use their smartphones in meetings or classes.
Answers
Answer:
0.18173219.
Step-by-step explanation:
We have been asked to find what will be the probability that at least 6 of 9 adults use their smartphones in meetings or classes.
We will find our answer using Bernoulli's trails.
[tex]_{r}^{n}\textrm{c}\cdot p^{r}\cdot (1-p)^{n-r}[/tex]
First of all we will find the probabilities when r is 6, 7,8 and 9 then we will add them all.
When r=6,
[tex]_{6}^{9}\textrm{c}\cdot 0.46^{6}\cdot (1-0.46)^{9-6}[/tex]
[tex]\frac{9!}{6!3!} *0.46^{6} *0.54^{3}[/tex]
[tex]\frac{9*8*7*6!}{6!*3*2*1} *0.009474296896*0.157464[/tex]
[tex]84*0.009474296896*0.157464=0.12532[/tex]
Similarly we will find Probabilities when r=7, 8 and 9.
When r=7
[tex]_{7}^{9}\textrm{c}\cdot 0.46^{7}\cdot (1-0.46)^{9-7}[/tex]
[tex]\frac{9!}{7!2!} *0.46^{7} *0.54^{2}[/tex]
[tex]\frac{9*8*7!}{7!*2*1} *0.00435817657216*0.2916[/tex]
[tex]36*0.00435817657216*0.2916=0.04575039[/tex]
When r=8
[tex]_{8}^{9}\textrm{c}\cdot 0.46^{8}\cdot (1-0.46)^{9-8}[/tex]
[tex]\frac{9!}{8!1!} *0.46^{8} *0.54[/tex]
[tex]\frac{9*8!}{8!*1!} *0.00200476*0.54[/tex]
[tex]9 *0.00200476*0.54=0.0097431336[/tex]
When r=9,
[tex]_{9}^{9}\textrm{c}\cdot 0.46^{9}\cdot (1-0.46)^{9-9}[/tex]
[tex]\frac{9!}{9!0!} *0.46^{9} *1[/tex]
[tex]1 *0.00092219*1=0.00092219[/tex]
Now let us add all the probabilities to get the final answer.
[tex]0.12532+0.04575+0.00974+0.00092219=0.18173219[/tex]
Therefore, probability that at least 6 of 9 adults use their smartphones in meetings or classes is 0.18173219.
The probability that at least [tex]6[/tex] out of [tex]9[/tex] adult use their smartphone in meeting or classes is [tex]\fbox{\begin\\\ 0.1817\\\end{minispace}}[/tex].
Further explanation:
It is given that [tex]46\%[/tex] smartphone user use their smartphone in meetings or classes and at least [tex]6[/tex] out of [tex]9[/tex] adult smartphone user are selected randomly.
Here we will use the concept of Binomial probability.
If an experiment is performed [tex]n[/tex] times and it has only two outcomes that is, “success” and “failure”.So, the probability associated with this experiment is called Binomial probability.
The probability to get exactly [tex]r[/tex] successes in [tex]n[/tex] trial is given as follows,
[tex]\boxed{P=^{n}C_{r}p^{r}(1-p)^{n-r}}[/tex] ......(1)
Here, [tex]P[/tex] is the probability of [tex]r[/tex] successes in [tex]n[/tex] trials.
About [tex]46\%[/tex] smartphone user use their smartphone in meetings or classes that means the probability of the smartphone user use their smartphone in meetings or classes is as follows:
[tex]\begin{aligned}46\%&=\dfrac{46}{100}\\&=0.46\end{aligned}[/tex]
The statement, “at least six smartphone user” means six or more smartphone user. We will calculate the probability of the [tex]6,7,8[/tex] and [tex]9[/tex] adult smartphone user.
Substitute [tex]0.46[/tex] for [tex]p[/tex], [tex]9[/tex] for [tex]n[/tex] and [tex]6,7,8,9[/tex] for [tex]r[/tex] in equation (1) to obtain the probability of summation as follows,
[tex]P=^{9}C_{6}(0.46)^{6}(1-0.46)^{9-6}+^{9}C_{7}(0.46)^{7}(1-0.46)^{9-7}+^{9}C_{8}(0.46)^{8}(1-0.46)^{9-8}+\qquad^{9}C_{9}(0.46)^{9}(1-0.46)^{9-9}\\\\P=\dfrac{9!}{6!\cdot(9!-6!)}\cdot(0.46)^{6}\cdot(0.54)^{3}+\dfrac{9!}{7!\cdot(9!-7!)}\cdot(0.46)^{7}\cdot(0.54)^{2}+\dfrac{9!}{8!\cdot(9!-8!)}\cdot(0.46)^{8}\cdot(0.54)^{1}+\dfrac{9!}{9!\cdot(9!-9!)}\cdot(0.46)^{9}\cdot(0.54)^{0}[/tex]
Further solving the above equation as follows,
[tex]\begin{aligned}P&=84\cdot(0.46)^{6}\cdot(0.54)^{4}+36\cdot(0.46)^{7}\cdot(0.54)^{2}+9\cdot(0.46)^{8}\cdot(0.54)^{1}+1\cdot(0.46)^{9}\cdot(0.54)^{0}\\&=0.1253+0.04575+0.009743+0.00092219\\&=0.1817\end{aligned}[/tex]
Therefore, the probability that at least [tex]6[/tex] out of [tex]9[/tex] adult use their smartphone in meeting or classes is [tex]\boxed{0.1817}[/tex].
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Answer details:
Grade: College
Subject: Mathematics
Chapter: Probability
Keywords: Probability, numbers, chances, smartphone, meeting, classes, 0.1817, summation, user, equation, selected, Binomial probability, randomly.
A store is selling candy for $6 for 12 bags how much will it cost if you need to have 110 bags
Answers
1 over 4a = 2 over 3. Which of the following equals a in this equation?
1/6
3/8
11/12
2 and 2/3
Answers
Answer:
2 and 2 over 3 is the Correct Answer
Step-by-step explanation:
I took the test and got the question wrong, I thought it was 3/8 but it wasnt, my test said the correct answer was 2 and 2 over 3 so I hope you get it right even though I didnt :)
The solution of the expression is,
⇒ a = 3 / 8
What is an expression?Mathematical expression is defined as the collection of the numbers variables and functions by using operations like addition, subtraction, multiplication, and division.
Given that;
The expression is,
⇒ 1 over 4a = 2 over 3.
Now, We can simplify as;
⇒ `1 / 4a = 2 / 3
⇒ 3 = 2 x 4a
⇒ 3 = 8a
⇒ a = 3 / 8
Thus, The solution of the expression is,
⇒ a = 3 / 8
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simplify 6x + 8 / 4x + 4
Answers
(6x + 8) / (4x + 4)
(3x +4) 2(x 1)
2(3x + 4) 4(x +1)
A contest on a game show receives -25 points for each wrong answer what integer represents the change in periods after three wrong answers
Answers
1. You will go down 25 points for every wrong answer, so -25 + -25 + -25 would represent what is happening. They are all negative, so you keeping moving down in value.
2. You can also think of this as 3 groups of -25.
Both answers are -75. The answer is negative because the change was down in points.
-75 is the integer that represents this situation.
Rewrite the following equation in slope-intercept form. 17x − 7y = 16 Write your answer using integers, proper fractions, and improper fractions in simplest form.
Answers
y = (17/7) x - (16/7)
Explanation:
The slope-intercept form of the line has the following general formula:
y = mx + c
where:
m is the slope
c is the y-intercept
The given is:
17x - 7y = 16
To put this in slope-intercept form, we will need to isolate the y as follows:
17x - 7y = 16
7y = 17x - 16
y = (17/7) x - (16/7)
where:
m is the slope = 17/7
c is the y-intercept = -16/7
Hope this helps :)
17x=16
X=16/17
X=0
-7y=16
Y=-16/7
MATH HELP PLEASE WILL GIVE BRAINLIEST!!
Quadrilateral ABCD is inscribed in this circle.
What is the measure of angle A?
Answers
When you have an inscribed quadrilateral, the opposite angles add up to 180 degrees.
So we can start with angles B and D, and write the equation x + 116 = 180.
Solving that gives us that x = 64.
Now, input 64 for x in the expression for angle A.
2(64) - 40
128 - 40
88
Angle A is 88 degrees.
Good luck,
MrEQ
The price of a math book is $50, but you have only $35 with you. If you get a discount of 20%, how much money do you need to borrow from a friend so that you can buy the book?
Answers
20% discount = 0.2 x 50 = $10
After discount, the price of the book is
$50 - $10 = $40
I have $35, so I need
$40 - $35 = $5 more
Answer: I need to borrow $5 from a friend.
$10.00 discount from the $50.00.
$50-$10=$40.00
Have $35.00.
$40-$35=$5.00
Need to borrow $5.00!!
Is 6,200 ft. grater than less than or equal to 1ml. 900 ft.
Answers
The answer is "6,200".
Reason:
6,200>6,180
1mL 900 ft=2,180ft
If you need anymore help feel free to ask me!
Hop this helps!
~Nonportrit
How would 5,608,912,013 be written in word form? A. five million, six hundred eight thousand, nine hundred twelve, thirteen B. five million, six hundred eighty-nine thousand, twelve hundred, thirteen C. five billion, six hundred eight million, nine hundred twelve thousand, thirteen D. five billion, six hundred eighteen million, nine hundred twelve thousand, thirteen
Answers
a triangular pyramid has a volume of 840 cubic inches the triangular base has a base length of 20 inches and a height of 21 inches find the height of the pyramid
Answers
The required height of the pyramid is 6 inches.
Given that,
A triangular pyramid has a volume of 840 cubic inches a triangular base has a base length of 20 inches and a height of 21 inches find the height of the pyramid is to be determined.
What is volume?Volume is defined as the ratio of the mass of an object to its density. In other words, the Volume of the object is the product area of the cross-sectional profile and extruded height.
Here,
The base area of the triangle = 20 * 21 = 420 inches².
Volume of the triangular pyramid = 1 / 3 * base area * height
840 = 1 / 3 * 420 * height
840 / 140 = height
height = 6 inch.
Thus, the required height of the pyramid is 6 inches.
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find the sum
the answer is after the first one
Answers
6x/x(x-4) + 5(x-4)/x(x-4)
answer is 11x-20 / x^2-4x
Which r-value suggests a strong negative correlation? A. r=0.97351 B. r= -0.27331 C. r= -0.97351 D. r= 0.27331
Answers
Water rushes over Niagara Falls at the rate of 180 million cubic feet every 30 mins. How much water goes over the falls in 1 min?
also, please tell me the steps to do it, instead of just the answer
Answers
Answer:
20 million cubic feet every 1 mins
Step-by-step explanation:
180÷3=60
60÷3=20
what type of relationship does this pair of angles have?67 degrees and 23 degrees
Answers
67 + 23 = 90
67° and 23° are complementary angles.
67 + 23 = 90
What is an angle?In Plane Geometry, a figure which is formed by two rays or lines that shares a common endpoint is called an angle. The two rays are called the sides of an angle, and the common endpoint is called the vertex.
We know that, a ray is a line that continues on forever inn one direction with a point at it's start.
here, we have,
67 degrees and 23 degrees
we know,
67 + 23 = 90
Hence, 67° and 23° are complementary angles.
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please help me, thanks.
Answers
[tex](3 {}^{9} - 4) - r[/tex]
because of the order of operations this expression is valid to the world problem
A. 41 Cu in
B. 83 Cu in
C. 124 Cu in
D. 166 Cu in
Answers
Stretch Your Thinking Ann arranges her marbles in groups, with 8 marbles in each group. She writes the fraction 5/8 to show the fraction of marbles in each group that is red. What equivalent fraction names the fraction of marbles in 6 groups that are Red? Explain.