Answer:
Not a true statement.
Step-by-step explanation:
8(6-4)=12
8(2)=16, not 12.
Beth has 250 comic books in her collection. She begins to sell 20 of them each week. Martin has 80 comic books in his collection. He begins buying 15 new comic books each week. Select from the choices below, dragging and dropping to build an inequality that could be used to determine when Martin's comic book collection exceeds Beth's.
Answer:
250 - 20 < 80 + 15x
Step-by-step explanation:
Given that
Beth has 250 books and 20 books sold each week
While on the other hand, Martin has 80 books and sell 15 books each week
Let us assume each week be x
Now the equations are
Beth 250 - 20x
Martin 80 + 15 x
Now the inequality would be
250 - 20 < 80 + 15x
Explain how to create an equation with infinity many solutions.
you need both sides of the equation to be equal to each other.
ex: 1 = 1
x = x
10 - x = -x + 10
this may not be what you're looking for and if it isn't just let me know
17. Algebraically determine the domain and the y -intercept of the function y=\log _{4}(2 x+1)-3 .
The domain of the function is `R` and the y-intercept is `(0, -3)`
Given, `y = log4(2x + 1) - 3`.
To determine the domain of the function,
we should look for all values of `x` that would make the given function undefined.
There are no real values of `x` that would make the function undefined.
Therefore, the domain of the function is all real numbers or `R`.
To determine the y-intercept, substitute `x = 0` in the given function.`
y = log4(2(0) + 1) - 3 = log4(1) - 3 = 0 - 3 = -3`
Therefore, the y-intercept of the function is `(0, -3)`.
Hence, the domain of the function is `R` and the y-intercept is `(0, -3)`.
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Benny went to his local zoo that featured 6 lion exhibits. If these lion exhibits make up 25% of the zoo's exhibits, then how many exhibits does the zoo have in total?
Answer:
24
Step-by-step explanation:
if 6 exhibits are 25% of the entire zoo. You would need four times that amount to get the total number of exhibits because 25% × 4 = 100%. So, if you multiply 6 × 4 the total number of exhibits would be 24.
What is an undefined term?
Answer : Undefined terms are those terms that don’t require a formal definition. The four terms are point line plane and set
Step-by-step explanation:
Please help i need the answer quick
Answer:
\({\boxed{\sf{A = 490.63}}} \: \sf{yd}^{2} \)
Step-by-step explanation:
In this question we have provided that the diameter of circle. So, finding the radius of circle :
\( \: \: \longrightarrow{\tt{R= \dfrac{D}{2}}}\)
R = Radius D = Diameter\( \: \: \longrightarrow{\tt{R= \dfrac{25}{2}}}\)
\( \: \: \longrightarrow{\tt{R= \cancel{\dfrac{25}{2}}}}\)
\( \: \: \longrightarrow{\tt{R= 12.5}}\)
Hence, the radius of circle is 12.5 yd.
————————————————————————
Now, we know the radius of circle. Then, finding the area of circle by substituting the values in the formula :
\( \: \: \longrightarrow\tt{A = \pi{r}^{2}}\)
A = Area π = 3.14 r = radius\( \: \: \longrightarrow\tt{A = 3.14{(12.5)}^{2}}\)
\( \: \: \longrightarrow\tt{A = 3.14{(12.5 \times 12.5)}}\)
\( \: \: \longrightarrow\tt{A = 3.14{(156.25)}}\)
\( \: \: \longrightarrow\tt{A = 3.14 \times 156.25}\)
\( \: \: \longrightarrow\tt{A = 490.63}\)
Hence, the area of circle is 490.63 yd².
\(\rule{200}{2.5}\)
. a closet contains n pairs of shoes. if 2r shoes are chosen at random (with 2r < n), what is the probability that there will be (a) no complete pair, (b) exactly one complete pair, (c) exactly two complete pairs among them?
Answer:
Step-by-step explanation:
Find x and y.
65°
40°
to
Answer:
x 23 y 60
Step-by-step explanation:
Pleas answer as soon as you can!!
Every person has blood type 0, A, B, OR AB. A random
group of people are blood-typed, and the results are
shown in the table.
Use the table to determine the following probabilities.
The probability that a randomly chosen person from this
group has type B is
The probability that a randomly chosen person from this
group has type AB is
The probability that a randomly chosen person from this
group has type B or type AB blood is
Blood Type
Number of People
o
22
A
20
B
6
AB
N
1)3/25
2)1/25
3)4/25
this is the correct answer
Answer:
see attached picture of the corrected answer
Candice has a dog walking business. It takes her 40 minutes to complete her route with 2 dogs. For each additional dog walked at the same time, it takes her 5 more minutes to complete her route. If x represents the total number of dogs she walks at the same time, which of the following equations can be used to find out how long it takes Candice to complete her route?
A. y = 40x + 5
B. y = 5(x - 2) + 40
C. y = 5x + 40
D. y = 40(x - 2) + 5
Answer:
The answer is B
Step-by-step explanation:
Candice takes 40 minutes to walk two dogs and B is the only equation that lets you get 40 minutes when x equals 2 dogs
which expression is equivalent to 1/1-2sin^2(x)?
a. 1/cos(2x)
b. 1/sin(2x)
c. cos(2x)
d. sin(2x)
Answer:
a) \(\frac{1}{cos(2x)}\)
Step-by-step explanation:
Answer: a) 1/cos(2x)
Step-by-step explanation:
Edge:))
Which ordered pair is a solution of the equation?
y= 40 - 7
A square has a perimeter of 28 yd What is the length of each side?
The length of each side of the square is 7 yards.
What is length of the square side?The square sides are equal in a square. So, we wuill find the square root of the number to get what make one side length.
To get length of each side of the square, we will divide perimeter by 4 since a square has four equal sides.
The formula is: Perimeter = 4 * Side Length
Plugging the values:
28 yd = 4 * Side Length
Side Length = 28 yd / 4
Side Length = 7 yd.
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HELP ME PLSSSS
8. The following table is an example of inverse variation.
X y
4 48
6 32
8 24
1612
Which equation models the relationship between x and y?
Answer:
the correct answer is option c. y= 192/x
Use the figure below to determine the value of the variable and the
lengths of the requested segments. Your answers may be exact or
rounded to the nearest hundredth. The figure may not be to scale.
Using tangents theorem, we can find the value of the missing length,
n = 18.7units.
Define a tangent?"To touch" is how the word "tangent" is defined. The same idea is conveyed by the Latin word "tangere". A tangent, in general, is a line that, while never entering the circle, precisely touches it at one point on its circumference. A circle has a number of tangents. They make a straight angle with the radius.
Here in the diagram,
We can see that as per the central angle and tangent theorem,
AB/BC = ED/DC
⇒ 17/10 = n/11
Cross multiplying:
⇒ 17 × 11 = n × 10
⇒ 10n = 187
⇒ n = 187/10
⇒ n = 18.7
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How do I find the value of x?
Answer:
x = 2
Step-by-step explanation:
If ΔABC~ΔAED then:
\(\dfrac{AC}{AD}=\dfrac{BC}{ED}\\\\\\\dfrac{x+4}{4}=\dfrac{3}{2}\\\\\dfrac{x+4}{4}=\dfrac64\\\\x+4=6\\\\x=2\)
Joe and Matthew plan to visit a bookstore. Based on their previous visits to this bookstore, the probability distributions of the number of books they will buy are given below.....
Number of books Joe will buy/Probability...... 0/.50 1/.25 2/.25
Number of books Matthew will buy/Probability.....0/.25 1/.50 2/.25
Assuming that Joe and Matthew make their decisions independently, what is the probability that they will purchase no books on this visit to the bookstore?
The probability that Joe and Matthew will purchase no books on this visit to the bookstore is 0.125
What is meant by probability?Probability is the branch of mathematics that deals with numerical descriptions of how probable an event is to occur or how likely it is that a claim is true.
Here we will find the joint probability distribution of number of books they will buy together.
We will find joint probability distribution of x+y.
Since,
P(x, y)=P(x).P(y)
P(X=x, Y=y)=P(X=x)P(Y=y)
P(0, 0)=0.125
P(0, 1)=0.25
P(0, 2)=0.125
P(1, 0)=0.0625
P(1, 1)=0.125
P(1, 2)=0.0625
P(2, 0)=0.0625
P(2, 1)=0.125
P(2, 2)=0.0625
Here we have to find the probability that they will purchase no book on this visit is they will buy zero book that means P(x=0, y=0)
From the above probability distribution P(x=0, y=0)=0.125
The probability that Joe and Matthew will purchase no books on this visit to the bookstore is 0.125.
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1. Solve for x. Show your solution and justify every step.
Equation. Justification
4(x - 3) + 5 = 17. Given
Given:
The equation is
\(4(x-3)+5=17\)
To find:
The solution of given equation.
Solution:
We have,
\(4(x-3)+5=17\)
Using distributive property, we get
\(4(x)+4(-3)+5=17\)
\(4x-12+5=17\)
\(4x-7=17\)
Adding 7 on both sides, we get
\(4x-7+7=17+7\)
\(4x=24\)
Divide both sides by 4.
\(x=\dfrac{24}{4}\)
\(x=6\)
Therefore, the value of x is 6.
Determine the intercepts of the line. Do not round your answers. 3x+2y=5
Answer:
\(\textsf{$x$-intercept}: \quad \left(\dfrac{5}{3},0 \right)\)
\(\textsf{$y$-intercept}: \quad \left(0,\dfrac{5}{2} \right)\)
Step-by-step explanation:
Given equation:
\(3x+2y=5\)
The x-intercept is when y = 0:
\(\implies 3x+2(0)=5\)
\(\implies 3x=5\)
\(\implies x=\dfrac{5}{3}\)
Therefore, the x-intercept is:
\(\left(\dfrac{5}{3},0 \right)\)
The y-intercept is when x = 0:
\(\implies 3(0)+2y=5\)
\(\implies 2y=5\)
\(\impiles y=\dfrac{5}{2}\)
Therefore, the y-intercept is:
\(\left(0,\dfrac{5}{2} \right)\)
Below is the least squares regression output for tree #2. Simple linear regression results: Dependent Variable: leaf water potential Independent Variable: sap flow velocity leaf water potential 0.345-0.0552 sap flow velocity Sample size: 6 R-sq 0.99115489 Find the value of the correlation coefficient based off of R-Square.
The value of the correlation coefficient based on the provided R-squared is approximately 0.995562, indicating a strong positive linear relationship between leaf water potential and sap flow velocity for tree #2.
The correlation coefficient, denoted as "r," is a measure of the strength and direction of the linear relationship between two variables.
It ranges between -1 and 1, where -1 indicates a perfect negative correlation, 1 indicates a perfect positive correlation, and 0 indicates no correlation.
In the given least squares regression output, the value of R-squared (R-sq) is provided as 0.99115489.
R-squared represents the proportion of the total variation in the dependent variable that can be explained by the independent variable(s).
It is calculated as the squared value of the correlation coefficient (r).
To find the value of the correlation coefficient based on R-squared, we take the square root of R-squared:
r = √(R-sq)
Using the given value of R-squared (0.99115489), we can calculate the correlation coefficient:
r = √(0.99115489) ≈ 0.995562
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Choose the statement that best defines the term "experiment" in the context of probability.
a) A process that leads to only one of several possible outcomes.
b) A random trial whose outcome can be predicted on the basis of mathematical analysis.
c) A process that may or may not confirm a hypothesis.
Out of the three given options, option a) is the most appropriate definition of an experiment in the context of probability.
The term "experiment" in the context of probability refers to a process or activity that involves observing or measuring an outcome that is subject to chance or uncertainty. The outcome of an experiment is not necessarily predictable with certainty, and it may depend on various factors such as the conditions under which the experiment is conducted and the randomness inherent in the process.
Out of the three given options, option a) is the most appropriate definition of an experiment in the context of probability. An experiment is essentially a process that leads to one of several possible outcomes, and the probability of each outcome can be calculated or estimated based on the underlying assumptions and factors involved. Examples of experiments in probability include rolling a die, tossing a coin, drawing a card from a deck, or conducting a clinical trial to test a new drug.
Option b) is not an appropriate definition of an experiment because it suggests that the outcome can be predicted with certainty based on mathematical analysis, which is not always the case in experiments involving chance or uncertainty.
Option c) is also not an appropriate definition of an experiment because it suggests that an experiment is conducted to confirm a hypothesis, which may or may not be true. While experiments can be used to test hypotheses and provide evidence to support or refute them, the primary goal of an experiment in the context of probability is to observe or measure the outcome and calculate the probability of each possible outcome.
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Write your answer in simplest form
Answer:
Below,...
Step-by-step explanation:
\(-\frac{5}{6} +\frac{2}{3}\\=\\-\frac{5}{6} +\frac{4}{6} \\=\\-1/6\)
Chow,...!
I hope this helps you
Jack ran a total of 30 miles over the course of 15 track practices. How many track practices would it take for Jack to run 44 miles? Solve using unit rates.
My brain isn’t functioning and i need this done before December 21.
Answer:
22
Step-by-step explanation:
Use a proportion.
30/15 = 44/x
30x = 15 × 44
2x = 44
x = 22
Answer:
22
Step-by-step explanation:
30 miles/ 15 sessions of tract practice
Per practice Jack is running a total of 2 miles.
So 44 miles/2 miles
22 sessions of track practice
A spinner used in a board game is divided into 12 equally sized sectors. Seven of these sectors indicate that the player should move his token forward on the board, three of these sectors indicate that the player should move his token backward, and the remaining sectors award the player bonus points but do not move his token on the board.
The total area of the sectors that do not allow the player to move his token is 45. 1 inches squared.
What is the radius of the spinner?
Enter your answer, rounded to the nearest tenth of an inch, in the box
Answer:
The radius is 9.28 inches.
Step-by-step explanation:
Since there are 7 Move Ahead zones, and 3 Go Backwards zones on the spinner, there must be 2 other zones (the Freeze! +Bonus pts)
2 out of 12 zones are Freeze! +Bonus pts. That is 1/6 of the spinner. They said the area of the the Freeze!+Bonus pts is 45.1 inches squared.
45.1 × 6
= 270.6
The entire spinner has the area 270.6
The area of a circle is:
A = pi•r^2
We are looking for r. Thats the radius they asked for in the question.
270.6 = pi•r^2
pi is a number, I'm using the pi button on the calculator bc it is most exact.
270.6 = pi•r^2
Divide both sides by pi.
86.134655 = r^2
square root both sides.
9.28 = r
The radius is 9.28 inches.
What is the median number of books read?
Answer options with 5 options
A.5
B.8
C.9
D.10
E.11
Answer:
The answer is B:8
Step-by-step explanation:
because when you line up the numbers in order
5 6 7 8 11 11 15
The middle number is 8
(4.8)/(2z+15)=(0.2)/(5) PLS HELP! SHOW STEPS TOO IF POSSIBLE!
Answer:
z = 52.5
Step-by-step explanation:
You want the solution for (4.8)/(2z+15)=(0.2)/(5).
Cross multiplyMultiplying by 5(2z +15) we have ...
5(4.8) = 0.2(2z +15)
24 = 0.4z +3 . . . . . . . . . . simplify
21 = 0.4z . . . . . . . . . . . . subtract 3
z = 21/0.4 = 52.5 . . . . divide by the coefficient of z
The value of z is 52.5.
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someone please help.
Solve for g.
Give an exact answer.
10(0.4 + 0.5g) = 4g
Please help!
I need the answer as fast as possible!!
Answer:
4/5=g
thats what i got
eeee
Answer: The real answer is -4 bro.
what is the slope and y-intercept for the line y = -2x
Answer:
slope = - 2, y- intercept = 0
Step-by-step explanation:
The equation of a line in slope- intercept form is
y = mx + c ( m is the slope and c the y- intercept )
y = - 2x , that is
y = - 2x + 0 ← is in slope- intercept form
with slope m = - 2 and y- intercept c = 0 ( that is the origin )
John rode his dirt bike 45 miles in two hours. At this rate, how many miles will he travel in 1/2 an hour?
Answer:
11.25 miles
Step-by-step explanation:
To figure out how many miles John will travel in 1/2 an hour, we can use the following formula:
distance = rate x time
We know the rate, which is the number of miles John can travel per hour. We can find this by dividing the total distance by the total time:
rate = distance / time
rate = 45 miles / 2 hours
rate = 22.5 miles per hour
Now we can use this rate and the given time of 1/2 an hour to find the distance:
distance = rate x time
distance = 22.5 miles per hour x 1/2 hour
distance = 11.25 miles
Therefore, John will travel 11.25 miles in 1/2 an hour at this rate.