To find the midpoint between two points wee need to apply the following formula:
[tex]\begin{gathered} x_m=\frac{x_1+x_2}{2} \\ y_m\text{ = }\frac{y_1+y_2}{2} \end{gathered}[/tex]Where (x1,y1) are the coordinates of the first point, (x2,y2) are the coordinates of the second point and (xm,ym) are the coordinates of the mid point. In this case the first point is T and the second point is J. If we apply the formula we should find the coordinates of the midpoint between them.
[tex]\begin{gathered} x_m\text{ = }\frac{-2-5}{2} \\ x_m\text{ = }\frac{-7}{2} \\ x_m\text{ = -3.5} \end{gathered}[/tex][tex]\begin{gathered} y_m\text{ = }\frac{6+1}{2} \\ y_m=\frac{7}{2} \\ y_m\text{ = 3.5} \end{gathered}[/tex]The coordinates of the midpoint are (-3.5, 3.5).
experimental and theoretical
Spinning a three:
experimental = 11/50
theoretical = 1/5
Spinning an even number:
experimental = 21/50
theoretical = 2/5
Spinning an odd number:
experimental: 29/50
theoretical: 3/5
Spinning a number less than 5:
experimental: 21/25
theoretical: 4/5
Solve for y.2x – 8y = 24
Answer:
[tex]y=\frac{1}{4}x-3[/tex]Explanation:
Given the equation:
[tex]2x-8y=24[/tex]To solve for y, we follow the steps below:
Step 1: Rearrange to Isolate the term containing y.
[tex]8y=2x-24[/tex]Step 2: Divide both sides by 8.
[tex]\begin{gathered} \frac{8y}{8}=\frac{2x-24}{8} \\ y=\frac{2x-24}{8} \end{gathered}[/tex]Step 3: Simplify
[tex]\begin{gathered} y=\frac{2x}{8}-\frac{24}{8} \\ y=\frac{1}{4}x-3 \end{gathered}[/tex]I need to know what goes in the boxes for this practice question.
From the question given;
5 = 2/5 m
25 = 2m
Divide both-side by 2
25 /2 = m
m = 25/2
Now to solve for H
( H + [ 1 4 -2 ] ) + [ 3 2 -6 ] = [-2 3 -1] + ( [1 4 -2] + [ 3 2 -6] )
( H + [ 4 6 - 8 ] )= [ -2 3 - 1] + [ 4 6 - 8 ]
( H + [ 4 6 - 8 ] = [ 2 9 -9 ]
Subtract [4 6 -8] from both-side
H = [ 2 9 -9 ] - [ 4 6 -8 ]
= [-2 3 - 1]
m x H = [ 25/2 * -2 25/2 * 3 25/2 * -1 ]
m x H = [ -25 75/2 -25/2 ]
f(x) = log x + 2 and g(x) = log (1/x). Find (f – g) (x).log x -2 – log (1/x)22 log x + 2(2/log x) + 1
We have to find (f-g)(x) given that f(x) = log x + 2 and g(x) = log(1/x).
We can find it as:
[tex]\begin{gathered} (f-g)(x)=f(x)-g(x) \\ (f-g)(x)=\log x+2-\log(\frac{1}{x}) \\ (f-g)(x)=\log x+2-(\log1-\log x) \\ (f-g)(x)=\log x+2-0+\log x \\ (f-g)(x)=2\log x+2 \end{gathered}[/tex]Answer: 2log(x) + 2
given : f(x) = x2 - 5 and g(x) = 3x - 1 Find 2g (f(-5))
The given functions are
f(x) = x^2 - 5
g(x) = 3x - 1
To find 2g(f(- 5)), we would first find f(- 5)
To find f(- 5), we would substitute x = - 5 into f(x) = x2 - 5. It becomes
f(- 5) = (- 5)^2 - 5
f(- 5) = 25 - 5
f(- 5) = 20
Then, we would substitute f(- 5) = 20 into g(x) = 3x - 1
Thus,
g(f(- 5) = 3*20 - 1
g(f(- 5) = 60 - 1
g(f(- 5) = 59
Therefore,
2g(f(- 5)) = 2 * 59 = 118
Use the graph of the function F shown here to find f(1), f(2), f(3).
The value of f(x) is reflected over the y-axis.
Obtain f(1) as follows,
Draw a vertical line at x=1 to intersect the curve.
From this point of intersection, draw a horizontal line to intersect the y-axis at y=3.
Therefore, the value of f(1) is 3.
Obtain f(2) as follows,
Draw a vertical line at x=2 to intersect the curve.
From this point of intersection, draw a horizontal line to intersect the y-axis at y=8.
Therefore, the value of f(2) is 8.
Obtain f(3) as follows,
Draw a vertical line at x=3 to intersect the curve.
From this point of intersection, draw a horizontal line to intersect the y-axis at y=7.
Therefore, the value of f(3) is 7.
Identify whether the set of ordered pairs represent an exponential. Explain your answer. x −2 0 2 4 y 4 12 36 108A. exponential functionAs the x-values are increased by a constant amount, the y-values increase by the same amount.B. not an exponential functionAs the x-values are increased by a constant amount, the y-values increase by the same amount.C. not an exponential functionAs the x-values are increased by a constant amount, the y-values are not multiplied by a constant amount.D. exponential functionAs the x-values are increased by a constant amount, the y-values are multiplied by a constant amount.
Answer:
D. exponential function
As the x-values are increased by a constant amount, the y-values are multiplied by a constant amount.
Explanation:
From the table of values:
x-values
[tex]\begin{gathered} 0-(-2)=2 \\ 2-0=2 \\ 4-2=2 \end{gathered}[/tex]The x-values increase by a constant amount, 2.
y-values
[tex]\begin{gathered} \frac{12}{4}=3 \\ \frac{36}{12}=3 \\ \frac{108}{36}=3 \end{gathered}[/tex]The y-values are multiplied by a constant amount, 3.
From these, we conclude that the set of ordered pairs represents an exponential function.
As the x-values are increased by a constant amount, the y-values are multiplied by a constant amount.
The correct option is D.
Question 1 of 10
Evaluate the expression and enter your answer in the box below.
-3. (6 + 2) +232 + 8
Answer here
SUBMIT
ANSWER
16
EXPLANATION
The absolute value bars indicate that we have to consider the number inside as positive, whether it's negative or positive. Therefore:
[tex]|-2|=2[/tex]And in the expression we have:
[tex]14+|-2|=14+2=16[/tex]Find the slope between the points:(1,7)(-2,3)
Using the formula,
[tex]m=\frac{7-3}{1-(-2)}\rightarrow m=\frac{4}{1+2}\rightarrow m=\frac{4}{3}[/tex]Answer:
slope = [tex]\frac{4}{3}[/tex]
Step-by-step explanation:
calculate the slope m using the slope formula
m = [tex]\frac{y_{2}-y_{1} }{x_{2}-x_{1} }[/tex]
with (x₁, y₁ ) = (1, 7 ) and (x₂, y₂ ) = (- 2, 3 )
m = [tex]\frac{3-7}{-2-1}[/tex] = [tex]\frac{-4}{-3}[/tex] = [tex]\frac{4}{3}[/tex]
Is (2,-2) a solution to the system of equations.9x = 10 - 4yу = 3х - 8-
Solution;
Given the system of equations below
[tex]\begin{gathered} 9x=10-4y...(1) \\ y=3x-8...(2) \end{gathered}[/tex]To find out if (2, -2) is the solution to the given system of equations, we solve for x and y
Applying the substitution method to solve the system of equations
Substitute for y in equation (1)
[tex]undefined[/tex]Meredith did some research on the ages of the male U.S. Olympic swimmers. She made a dot plot for the data . 20 21 22 23 24 25 26 27 28 29 Age of male US. Olymple swimmers years) According to Meredith's data, what is the typical age of a male U.S. Olympic swimmer? O A. 21 years O B. 26 years O C. 20 years OD. 29 years
Solution
we have the following set of data from the table given
21,24,25,25,25,26,26,26,26,27,29
The typical age = (21+24+25+25+25+26+26+26+26+27+29)/10
= 255/10
= 25.5 approximately = 26
Final Answer = 26
Solve: -2y ≥ 10y ≤ -5y ≤ 5y ≥ -5y ≥ 5
Given
[tex]-2y\ge10[/tex]Solution
Recall: Dividing by a negative number means you reverse the inequality symbol
[tex]\begin{gathered} -2y\ge10 \\ divide\text{ both sides by -2} \\ -\frac{2y}{-2}\ge\frac{10}{-2} \\ \\ y\leq-5 \end{gathered}[/tex]The final answer
[tex]y\leq-5[/tex]You have to deliver medicines 1 mile away. In order to do that, you have to which drone to use depending on the size of the blade in the drone. The equation that gives the relationship between the size of the blade (b) in inches and speed (miles/hour) is as follows: Speed = 50-2b In order to deliver the medicine in time, the drone must travel faster than 37 miles/hour. Check the box underneath the blade that you would like to use. Then write the speed of the drone using this blade.
From the information given,
The equation representing the relationship between the size of the blade (b) in inches and speed (miles/hour) is given as
Speed = 50-2b
Also, the required drone must travel faster than 37 miles/hour.
For the small blade, b = 4 inches
speed = 50 - 2 * 4 = 50 - 8
speed = 42 miles/hour
For the medium blade, b = 6 inches
speed = 50 - 2 * 6 = 50 - 12
speed = 38 miles per hour
For the large blade, b = 8
speed = 50 - 2 * 8 = 50 - 16
speed = 34 miles per hour
Since the speed of the drone with small blade is greater than 37 miles per hour and it is the greatest among the three drones,
The speed of the drone will be 42 miles per hour
choose correct word name for the number below. 51,104
To write the word name of a number, we start from left to right. in the thousands place, we have 51, so this is "fifty-one thousand". The rest is 104, we is "one hundred four". All together, we have:
"Fifty-one thousand one hundred four"
what is the surface area of a rectangular prism if the measures are 13, 9, 4
balloon 670 meters away angle 42degrees the higher balloon is 945 away angle 36 degrees how much higher is the balloon on the right than the left
Answer:
[tex]h1-h2=686.582689-603.2707097=83.31198832m[/tex]For each equation state the number of complex roots, the possible number of positive real roots,and the possible rational roots x^4+8x^2+2=0
The given equation is,
[tex]x^4+8x^2+2=0[/tex]Fundamental Theorem of Algebra says that a polynomial will have exactly as many roots as its degree (the degree is the highest exponent of the polynomial). A straightforward corollary of this (often stated as part of the FTOA) is that a polynomial of degree n with Complex (possibly Real) coefficients has exactly n Complex (possibly Real) zeros counting multiplicity.
Therefore, the equation will have 4 roots.
Descartes’s rule of signs says the number of positive roots is equal to changes in sign of f(x), therefore, the given equation does not have positive real roots.
Therefore, the equation will have 4 complex rooots.
Can I get an answer please?
the rule is reflextive
here(x, y) is changing into (x , -y)
the process is called translation
QuestionThe width of a rectangle is 6 less than the length, let L represent the length of the rectangle, Write an expression for thewidth of the rectangle
Since L represents the length and the width is 6 less the length, if w denotes the width, we have
[tex]w=L-6[/tex]that is, the width measures L-6
The birth weights of the 908 babies born at Valley Hospital in 2019 were normally
distributed with a mean of 7.2 pounds with a standard deviation of 1.5. Use the Z-
Score Table from the book to determine the number of babies that weighed more
than 10 pounds.
The number of babies that weighed more than 10 pounds is 43 using Z-
Score Table.
What is normal distribution?
A probability distribution that is symmetric about the mean is the normal distribution, sometimes referred to as the Gaussian distribution. It demonstrates that data that are close to the mean occur more frequently than data that are far from the mean. The normal distribution is depicted graphically as a "bell curve."
Given that total number of babies is 908.
The mean of the normal distribution is 7.2 pound.
The standard deviation of the normal distribution is 1.5 pound.
The formula of z score is z = (x - μ)/σ
In the given question x = 10, μ = 1.5, σ = 7.2
z score = (10 - 7.2)/1.5 = 1.86667
P-value from Z-Table:
P(x<10) = 0.96903
P(x>10) = 1 - P(x<10) = 0.030974
The number of babies that weighed more than 10 pounds is ( 0.030974 × 908) = 43.39 = 43 (approx.)
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A line segment has a length of 10 units. The line segment undergoes a translation up 5 units and left 5units from its original position.
A rigid transformation does not change the shape of the original object. Translation is a type of rigid transformation. From the information given,
The line segment undergoes a translation up 5 units and left 5units from its original position. Thus,
The length of the resulting line segment would be the same as the length of the original line segment since translations preserve the lengths of line segments
J and K are independent events. P(J | K) = 0.43. Find P(J)P(J) =
Explanation
We are given the following:
[tex]P(J|K)=0.43[/tex]We are required to determine P(J).
We know that since j and K are independent events, then:
[tex]P(J|K)=P(J)[/tex]Hence, the answer is:
[tex]P(J)=0.43[/tex](3x+30) line p and q are parallel solve for x
The two angles are alternate external, because they are on the external side of the parallel lines and on alternate sides of the transversal one. This means that they are congruent. So we can find the value of x by making their expressions equal and solving for x.
[tex]\begin{gathered} 4x=3x+30 \\ 4x-3x=30 \\ x=30 \end{gathered}[/tex]The value of x is 30°
In the rectangle below, SU= 4x – 2, RT = 5x-10, and m Z VSR=26°.Find RV and m ZVTS.Rm
SU and RT are the diagonals of the rectangle and are thus equal.
We the equate them to find x
SU = RT = 4x - 2 = 5x - 10
subtracting 4x from both sides gives:
4x - 2 - 4x = 5x - 10 - 4x
-2 = x - 10
Adding 10 to both sides give:
10 - 2 = x - 10 + 10
x = 8
RV is half of RT
where = RT = 4(8) - 2 = 32 - 2 = 40
Therefore, RV = 40/2 = 20
To calculate angle VTS, we consider that it is in an isosceles triangle with its angle equal to angle VST. Same angle VST is complementary with angle VSR
Therefore, angle VTS = VST = 90 - 26 = 64 degrees (sum of angles in a right angle)
VTS = 64 degrees
A psychologist is interested in constructing a 90% confidence interval for the proportion of
people who accept the theory that a person's spirit is no more than the complicated network of
neurons in the brain. Of those randomly selected, 50 of the 722 people agreed with this theory.
a. With 90% confidence the proportion of all people who accept the theory that a person's spirit
is no more than the complicated network of neurons in the brain is between ____ and ____.
Round to 3 decimal places.
b. If many groups of 722 randomly selected people are surveyed, then a different confidence
interval would be produced from each group. About ___ percent of these confidence
intervals will contain the true population proportion of all people who accept the theory that a
person's spirit is no more than the complicated network of neurons in the brain and about ____
percent will not contain the true population proportion.
a. The 90% confidence interval for the proportion of all people who accept the theory that a person's spirit is no more than the complicated network of neurons in the brain is between 0.053 and 0.085.
b. About 90% of the intervals will contain and about 10% of the intervals will not contain.
What is a confidence interval of proportions?A confidence interval of proportions has the bounds given by the rule presented as follows:
[tex]\pi \pm z\sqrt{\frac{\pi(1-\pi)}{n}}[/tex]
In which the variables used to calculated these bounds are listed as follows:
[tex]\pi[/tex] is the sample proportion, which is also the estimate of the parameter.z is the critical value.n is the sample size.The confidence level is of 90%, hence the critical value z is the value of Z that has a p-value of [tex]\frac{1+0.9}{2} = 0.95[/tex], so the critical value is z = 1.645.
The meaning of the 90% confidence level is given as follows:
90% of the intervals contain the true population proportion.10% of the intervals do not contain the true population proportion.The sample size and the estimate are given as follows:
[tex]n = 722, \pi = \frac{50}{722} = 0.069[/tex]
Hence the lower bound of the interval is given by:
[tex]\pi - z\sqrt{\frac{\pi(1-\pi)}{n}} = 0.069 - 1.645\sqrt{\frac{0.069(0.931)}{722}} = 0.053[/tex]
The upper bound of the interval is given by:
[tex]\pi + z\sqrt{\frac{\pi(1-\pi)}{n}} = 0.069 + 1.645\sqrt{\frac{0.069(0.931)}{722}} = 0.085[/tex]
More can be learned about the z-distribution at https://brainly.com/question/25890103
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Find the radius and area of a circle with a circumference of 62.8.Round your answer to the nearest tenth. Use 3.14
Given:
circumference of 62.8
Required:
circumference of 62.8
Explanation:
Let r be the radius of the circle
Since the circumference of the circle is 62.8
[tex]\begin{gathered} 2\pi r=62.8 \\ \\ 2\times3.14\times r=62.8 \\ \\ 6.28r=62.8 \\ \\ r=\frac{62.8}{6.28} \\ \\ r=10 \end{gathered}[/tex]area of circle is
[tex]\begin{gathered} \pi r^2 \\ \\ 3.14\times10\times10 \\ \\ =314 \end{gathered}[/tex]Required answer:
10, 314
9+9x=10x+2 Solve for x
This problem is about linear equations.
To solve it, we need to find the value of x.
[tex]9+9x=10x+2[/tex]First, we need to organize the equation, all terms without variables at the right side, and all terms with variables at the left side
[tex]9x-10x=2-9\text{ }\rightarrow-x=-7[/tex]Finally, we multiply the equation by -1 to get the proper answer
[tex]x=7[/tex]Therefore, the answer is 7.when you compare the 2016-2017 season with the 2017-2018 season, what was the percent increase in the number of games that the Lakers won ? show your work.
In order to calculate the percent increase in the number of games that the Lakers won from the 2016-2017 season with the 2017-2018 season we would have to make the following calculation:
percentage of increase=100* (games won 2017-2018-games won 2016-2017)/ (games won 2016-2017)
percentage of increase=100*(35-26)/(26)
percentage of increase=100*0.34615
percentage of increase=34.615%
The percent increase in the number of games that the Lakers won from the 2016-2017 season with the 2017-2018 was 34.615%
how do u solve 6=×+3_2
To solve the equation, we should isolate x on one side and the numerical term on the other side
So we have to multiply both sides by 2 to cancel the denominator 2 from the right side
[tex]\begin{gathered} 6\times2=\frac{(x+3)}{2}\times2 \\ 12=x+3 \end{gathered}[/tex]Now want to move 3 from the right side to the left side
Subtract 3 from both sides
[tex]\begin{gathered} 12-3=x+3-3 \\ 9=x \end{gathered}[/tex]The solution is x = 9
The polar equation r=8sin(4θ) graphs as a rose.What is the length of the petals of this rose?
Polar equations of rose curves follow the pattern:
[tex]r=a\text{ }sin\text{ }n\theta\text{ }[/tex]where:
a = represents the length of the petals
n = represents the number of petals.
Based on the given polar equation, the value of "a" is 8. Since "a" represents the length of the petals, then the length of the petals of this rose is 8 units.