Answer:
k = 9
Step-by-step explanation:
7 times 9 is 63, and if you divide that by 3, you will get 21. Therefore, the k = 9.
Jayden’s family took a road trip to the Grand Canyon. Jayden fell asleep 15% of the way through the trip if the total length of the trip was 1000 miles, how many miles had they travelled when Jayden fell asleep?
Answer:
150 miles
Step-by-step explanation:
0.15x1000=150
Find the area of a circle with diameter 10 cm . Use the value 3.14 for π , and do not round your answer. Be sure to include the correct unit in your answer.
Formula for the area of a circle:
A = πr² [A = area r = radius]
The radius is [tex]\frac{1}{2}[/tex] (half) the diameter. Since the diameter = 10cm, the radius = 5cm.
You know:
r = 5cm Substitute/plug this into the equation
A = πr²
A = π(5)²
A = 25π -> A = 25(3.14)
A = 78.5cm²
The area of the circle when the diameter is 10 cm should be [tex]78.5\ cm^2[/tex].
Calculation of the area of the circle:Since the diameter is 10 cm
We know that
The diameter should be
[tex]= \pi r^2\\\\= 3.14\times 5^2\\\\= 25\times 3.14\\[/tex]
= [tex]78.5\ cm^2[/tex]
Hence, The area of the circle when the diameter is 10 cm should be [tex]78.5\ cm^2[/tex].
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If (− 4, −8) and (−10, −12) are the endpoints of a diameter of a circle, what is the equation of the circle?
A) (x + 7)^2 + (y + 10)^2 = 13
B) (x + 7)^2 + (y − 10)^2 = 12
C) (x − 7)^2 + (y − 10)^2 = 169
D) (x − 13)^2 + (y − 10)^2 = 13
Answer:
Correct option: A
(x + 7)^2 + (y + 10)^2 = 13
Step-by-step explanation:
First we need to find the center of the circle. We can find it calculating the midpoint of the diameter.
the x-coordinates of the diameter are -4 and -10, so the midpoint is:
(-4 -10)/2 = -7
the y-coordinates of the diameter are --8 and -12, so the midpoint is:
(-8 -12)/2 = -10
Now we need to find the radius of the circle, so we find the diameter and then find half of it.
The lenght of the diameter is the distance of the endpoints:
D = sqrt((-4+10)^2 + (-8+12)^2) = 7.21
radius = 7.21/2 = 3.605
The generic equation of the circle is:
(x - xc)^2 + (y - yc)^2 = r^2
So we have:
(x + 7)^2 + (y + 10)^2 = 13
Correct option: A
Jim needs to rent a car. A rental company charges $21 per day to rent a car and $0.10 for every mile driven. He will travel 250 miles and has $115 to spend. Write an inequality that can be used to determine the maximum number of DAYS that Jim can rent a car?
Final answer:
To determine the maximum number of days Jim can rent a car, set up the inequality 21d + 25 ≤ 115. Solving for 'd', Jim can rent a car for a maximum of 4 days.
Explanation:
To determine the maximum number of days that Jim can rent a car, we need to set up an inequality using the given information. Let's denote the number of days as 'd'. The rental cost per day is $21, so the total cost for 'd' days would be 21d. The cost for the miles driven is $0.10 per mile, and Jim will travel 250 miles. So the cost for the miles driven would be 0.10 * 250 = $25. Now, we can set up the inequality:
21d + 25 ≤ 115
To solve for 'd', we need to subtract 25 from both sides of the inequality:
21d ≤ 90
Now, divide both sides of the inequality by 21:
d ≤ 90/21
d ≤ 4.29 (approx)
So, Jim can rent a car for a maximum of 4 days.
WILL MARK AS BRAINLEST!!!!!!!!
A rectangular prism is 7.8 yards long and 7.4 yards high. Its volume is 461.76 cubic yards. What is the width of the rectangular prism?
Answer:
The width is 8 yards.
Step-by-step explanation:
[tex]\frac{461.76}{7.8\cdot7.4}=8[/tex]. Hope this helps!
The frequency of a hum that is generated by an engine is 270hz. If t starts at zero, which of the following would best describe this frequency over time?
(Don’t pay attention to the answer chosen)
Answer:
sin ( 2π(270)*t )
Step-by-step explanation:
Solution:-
- The frequency of the hum is denoted as k = 270 Hz.
- The displacement of the hum is modeled by a sinusoidal function.
- The trigonometric modelling of frequency generating systems is given in the following general form:
sin ( w*t ) + c
- Where,
A: The amplitude of displacement e
w: The angular speed of the hum
c : The initial condition of displacement.
- Here, we will assume A = 1 and c = 0. The hum starts from time t = 0 seconds.
- The angular speed is the unit of speed that denotes the number of cycles in radians are undergone by the frequency generator device/person in unti time t.
- The angular speed is given by the following relation:
w = 2πk
w = 2π(270).
- The general model of the hum would be:
sin ( 2π(270)*t )
The diagram shows two different buttons and their weights.
12 grams
8 grams
c)
How many of each type of button are in the box?
To solve this problem, set up a system of equations with x and y representing the number of buttons. If there are 20 Weights of buttons in total, 20 of them weigh 12 grams and none weigh 8 grams.
To solve this problem, we can set up a system of equations. Let x be the number of buttons weighing 12 grams, and y be the number of buttons weighing 8 grams.
We can then write the following equations based on the information given:
x + y = total number of buttons
12x + 8y = total weight of the buttons
Substituting the given values, we have:
x + y = total number of buttons
12x + 8y = 240
From the first equation, we can express y in terms of x:
y = total number of buttons - x
Substituting this into the second equation:
12x + 8(total number of buttons - x) = 240
Simplifying:
12x + 8total number of buttons - 8x = 240
4x + 8total number of buttons = 240
4x = 240 - 8total number of buttons
4x = 8(30 - total number of buttons)
x = 2(30 - total number of buttons)
Since x and y represent the number of buttons, they must be whole numbers.
We can test different values for the total number of buttons to find a solution that satisfies this condition.
For example, if we assume there are 20 buttons in total:
x = 2(30 - 20) = 2(10) = 20
y = 20 - 20 = 0
Therefore, if there are 20 buttons in total, 20 of them weigh 12 grams and none weigh 8 grams.
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The probable question may be:
In a box, there are two types of buttons with different weights. One type of button weighs 12 grams, and the other type weighs 8 grams. If the total weight of the buttons in the box is 240 grams, how many buttons of each type are in the box?
The number of tickets purchased by an individual for Beckham College's holiday music festival is a uniformly distributed random variable ranging from 2 to 7. Find the mean and standard deviation of this random variable. (Round your answers to 2 decimal places.) Mean Standard deviation
Answer:
The mean is 4.5 and the standard deviation is 1.44.
Step-by-step explanation:
An uniform probability is a case of probability in which each outcome is equally as likely.
For this situation, we have a lower limit of the distribution that we call a and an upper limit that we call b.
The mean of the uniform probability distribution is:
[tex]M = \frac{(a + b)}{2}[/tex]
The standard deviation of the uniform probability distribution is:
[tex]S = \sqrt{\frac{(b-a)^{2}}{12}}[/tex]
Uniformly distributed random variable ranging from 2 to 7.
This means that [tex]a = 2, b = 7[/tex].
So
[tex]M = \frac{(2 + 7)}{2} = 4.5[/tex]
[tex]S = \sqrt{\frac{(b-a)^{2}}{12}} = \sqrt{\frac{(7 - 2)^{2}}{12}} = 1.44[/tex]
The mean is 4.5 and the standard deviation is 1.44.
i need help please!!!!!!!
Answer:
a) v=6
b) s= u^2 - v^2 : -2a
Step-by-step explanation:
v^2=u^2+2as
u=12, a=-6, s=9
a)
(12)^2= 12 * 12= 144
v^2=u^2+2as
v^2=(12)^2+ 2*(-6)*9
v^2=144+(-12)*9
v^2=144+(-108)
v^2=36
v=6
b)
v^2=u^2+2as
-2as=u^2 - v^2
s= u^2 - v^2 : -2a
check for s
s= 144 - 36 : -2(-6)
s= 108 : 12
s=9 (equal vs the given)
−11b+7=40
solve for b
Answer:
Step-by-step explanation:
subtract 7 on both sides
40-7=33
-11b=33
divide -11 on both sides
b=-3
Answer:
B=-3
Step-by-step explanation:
-11b+7=40
Subtract -7 from both sides
-11b-7=40-7
11b=33
divide by -11
11b/-11=33/-11
-11 and -11 cancel out, leaving you with B=-33/11
thus B=-3
A cake recipe calls for 550 grams of flour. About how many pounds of flour do you need? Use the conversion factors StartFraction 1 ounce Over 28.4 grams EndFraction and StartFraction 1 pound Over 16 ounces EndFraction .
The question is:
A cake recipe calls for 550 grams of flour. About how many pounds of flour do you need? Use the conversion factors (1 ounce)/(28.4 grams) and (1 pound)/(16 ounces).
Answer:
About 1.2 pounds of flour is needed.
Step-by-step explanation:
Given that the cake recipe calls for 550 grams, we want to determine about how many pounds of flour we need.
This simply means we want to convert 550 grams to pounds.
First, we were given (1 ounce)/(28.4 grams)
This implies that
1/28.4 = x/550 ..............................(1)
Where x is 550 grams in ounce.
Solving (1)
28.4x = 550
=> x = 550/28.4
≈ 19.3662
That is 550 grams is equal to 19.3662 ounce
Next, we are given the ratio (1 pound)/(16 ounce). We then convert 19.3662 ounce to pound
Let y be 19.3662 ounce in pound
=> 1/16 = y/19.3662
16y = 19.3662
y = 19.3662/16
≈ 1.2
That is 19.3662 ounce is equal to 1.2 pounds.
Therefore, 550 grams is equal to 1.2 pounds, and it is the amount of flour needed.
You would need approximately 1.210 pounds of flour for the cake recipe.
To convert grams to pounds, we can use the conversion factor:
1 pound = 16 ounces
And we also have the conversion factor:
1 ounce = 28.4 grams
First, we'll convert grams to ounces, and then ounces to pounds.
Given that the recipe calls for 550 grams of flour, let's calculate the amount in pounds.
Step 1: Convert grams to ounces.
550 grams x (1 ounce / 28.4 grams) = 19.366 ounces
Step 2: Convert ounces to pounds.
19.366 ounces x (1 pound / 16 ounces) = 1.210 pounds
Therefore, you would need approximately 1.210 pounds of flour for the cake recipe.
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A sphere has a diameter of 36 meters. What its exact volume?
Answer:
V = 7776 pi m^3
Step-by-step explanation:
The volume of a sphere is given by
V = 4/3 pi r^3
We need to know the radius
r = d/2 = 36/2 = 18
V = 4/3 pi (18)^3
V = 4/3 * pi *5832
V = 7776 pi
We cannot approximate pi since we want the exact answer
Answer:
7776π cubic meters.
Step-by-step explanation:
Recall the volume formula for a sphere is
V = (4/3) π r^3
r = (1/2)*diameter = (1/2)*36 m = 18 meters
V = (4/3)*π*(18)^3 = 24,429.02447 cubic meters
However the problem wants an exact answer, and not an approximation, therefore I will express the volume in terms of simplified expressions.
V = (4/3)*π*(18)^3 = (4/3)*π * (3*6)^3 = 4 *π * (1/3)*(3^3) *(6^3)
V = 4 *π * (1/3)*(3^3) *(6^3) = 4*π * 9 * 6^3 = 7776π cubic meters.
The total cost of attending a state university is $19,700 for the first year.
•A student’s grandparents will pay half of this cost
•An athletic scholarship will pay another $5000
Which amount is closest to the minimum that the student will need to save every month in order to pay off the remaining cost at the end of 12 months?
Answer:
$ 404.17 every month
Step-by-step explanation:
$19,700/2 =$9,850
$9,850-$5,000= $4,850
$4,850/12 = $404.1666666666667
rounds to $ 404.17
Use the law of cosines to find each missing side. Round to the nearest tenth.
(I'm doing each individual question)
Answer:
x = 9.3
Step-by-step explanation:
The Law of Cosines
[tex] c^2 = a^2 + b^2 - 2ab \cos C [/tex]
[tex] x^2 = 15^2 + 13^2 - 2(15)(13) \cos 38^\circ [/tex]
[tex] x^2 = 225 + 169 - 2(15)(13) \cos 38^\circ [/tex]
[tex] x^2 = 394 - 390(0.7880) [/tex]
[tex] x^2 = 86.6758 [/tex]
[tex] x = \sqrt{86.6758} [/tex]
[tex] x = 9.3 [/tex]
5(3x+2)=8(2x-4) solve for x
Answer:
x = 42 i hope this helps! :)
Step-by-step explanation:
given 5(3x + 2) = 8(2x - 4)
distribute the 5 to both the 3x and the 2 15x + 10 = 8(2x - 4)
now distribute the 8 to both the 2x and the -4 15x + 10= 16x - 32
subtract 15x from both sides 10 = x - 32
add 32 to both sides 42 = x
flip the equation around so the x is first x = 42
answer x = 42
A teacher randomly chooses a two-person team from a group of four students. The first person chosen will
be the presenter and the second person will be the researcher. Two of the students, Amir and Aaron, are
boys. The other two students, Caitlin and Deniz, are girls. All the possible outcomes of the team selection
are listed below.
If we take outcomes 2, 3, 5, 6, 7, 8, 10, and 11 as a subset of the sample space, which of the statements
below describe this subset?
Answer:
•The subset consists of all of the outcomes where the team is made up of one boy and one girl
• the subset consists of all of the outcomes where the team is not made up of all boys and not made up of all girls.
Answer:
A & D
Step-by-step explanation:
KHAN
The bricklayer exerted 150 newtons of force as he pushed the pushcart of bricks down
an alley that is 20 meters long. When the bricklayer reached the end of the alley, how
much work had he done?
Answer:
3000 N
Step-by-step explanation:
The work done by a force on an object is given as the product of the force applied on the object and the distance moved by the object.
Mathematically:
W = F * d
The force applied by the man is 150 N and the distance moved is 20 m. Hence, the work done by the man is:
W = 150 * 20 = 3000 J
The work done by the man is 3000 Joules.
A graph creates a triangle with the x-axis, the line 3x-2y=0, and the line x+2y=10. Find the area of the triangle formed in square units.
Answer:
18.75
Step-by-step explanation:
To identify the vertices of this triangle, you need to find the x intercepts of both lines, as where their solutions match. Let's start with setting them equal to each other. If you subtract 10 from both sides of the second equation, then both equations are left equaling zero. You can also multiply both sides of the equation by -1 for easier solving later Now:
3x-2y=-2y-x+10
4x=10
x=2.5
y=3.75
This shows that the height of this triangle is 3.75. Now, to find the x intercepts of both equations, we simply have to plug in the y value as 0. For the first one, 3x-0=0, so x=0 as well and the coordinates are (0,0). For the second one, x+0=10, so x=10 and the coordinates are (10,0). This shows that the base is 10-0=10 units long. The formula for the area of a triangle is [tex]\frac{bh}{2}=\frac{10\cdot3.75}{2}=18.75[/tex]. Hope this helps!
In a circle of diameter 30 cm a chord of 10cm is drawn. To 2 decimal places, how far is the chord from the center of the circle?
Given:
The circle has a diameter of 30 cm and a chord of 10 cm is drawn.
Radius of the circle = 15 cm
Half of the chord = 5 cm
We need to determine the distance of chord from the center of the circle.
Distance of chord from the center of the circle:
Let us use the Pythagorean theorem, to find the distance between the center and the chord.
Let d denote the distance between the center and the chord of the circle.
Thus, we get;
[tex]15^2=d^2+5^2[/tex]
[tex]225=d^2+25[/tex]
[tex]200=d^2[/tex]
Taking square root on both sides, we get;
[tex]14.14=d[/tex]
Thus, the distance between the center and the chord of the circle is 14.14 cm.
Hence, Option A is the correct answer.
The chord is 14.14 cm far from the center of circle.
First option is correct.
The perpendicular drawn from center to the chord, is always divide the chord into two equal parts.
Radius of circle = d/2 = 30/2 = 15 cm
A diagram is attached below, in which distance between center and chord is represented by x .
applying Pythagoras theorem
[tex]x=\sqrt{(15)^{2} -5^{2} }=\sqrt{225-25}=\sqrt{200} =14.14 cm[/tex]
Thus, the chord is 14.14 cm far from the center of circle.
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There are 4 green marbles and 6 yellow marbles in a bag. You want to find the compound probability of picking a green marble and a yellow marble. However, you do not put back the marble back into the bag. Is this an example of a dependent event or independent event?
Answer:
Dependent event because the sample space depends on the first event
Step-by-step explanation:
10 marbles total
4 green
6 yellow
1st pick green: Probability= 4/10
2nd pick yellow: Probability= 6/9
Dependent event because the sample space depends on the first event
Three friends—Elaine, Kelly, and Shannon—all start for their college volleyball team. Each plays a different position: setter, middle blocker, and outside hitter. Of the three, one is a freshman*, one a sophomore*, and the other a junior*.From the clues below, determine each woman's position and year in school.1. Elaine is not the setter.2. Kelly has been in school longer than the middle blocker.3. The middle blocker has been in school longer than the outside hitter.4. Either Kelly is the setter or Elaine is the middle blocker.
Answer:
Elaine is the outside hitter in Freshman Year
Kelly is the setter in Junior Year
Shannon is the middle blocker in Sophomore Year
Please mark my answer as brainiest
Elaine is the freshman outside hitter, Kelly is the junior setter, and Shannon is the sophomore middle blocker.
Explanation:Let's analyze the clues one by one:
From clue 1, Elaine cannot be the setter.From clue 2, Kelly has been in school longer than the middle blocker. This means Kelly is either the middle blocker or the outside hitter.From clue 3, the middle blocker has been in school longer than the outside hitter. Combining this with clue 2, we know that Kelly cannot be the middle blocker. Therefore, Kelly must be the outside hitter.From clue 4, either Kelly is the setter or Elaine is the middle blocker. Since Elaine cannot be the setter, Kelly must be the setter. This means Shannon is the middle blocker, leaving Elaine as the only option for the freshman outside hitter.Based on the given clues, we can conclude that:
Elaine is the freshman outside hitter.Kelly is the junior setter.Shannon is the sophomore middle blocker.Learn more about The positions and years in school of three friends on a college volleyball team. here:https://brainly.com/question/14557112
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What is the volume of a sphere with a radius of 3 inches ? Use 3.14 for pi
Final answer:
The volume of the sphere is 113.04 cubic inches.
Explanation:
The volume of a sphere can be calculated using the formula V = (4/3)×πr³. In this case, the radius is given as 3 inches. Plugging in the value, we get:
( V) volume of the sphere = (4/3)×3.14×3³ = (4/3)×3.14×27 = 113.04 cubic inches.
In order to answer the following question, please use the following image down below:
Find the value of x.
X=(Blank)
What is the value of X? Please show all the work on how you got your answer.
(If you can't explain your work, then it's fine. The only thing that I'm asking for is for you to show the work alongside your answer)
Answer:
5
Step-by-step explanation:
(15)(x+3) = (12)(2x) -->
15x + 45 = 24x -->
45 = 9x -->
5 = x
A bag contains a number of marbles of which 35 are blue, 10 are red and the rest are
yellow. If the probability of selecting a yellow marble from the bag at random is , how
many yellow marbles are in the bag?
Answer:
Y = 45*p(y) / (1 - p(y)) if I knew what p(y) is, we can find how many yellow marbles there are. p(y) = probability of choosing yellow.
Step-by-step explanation:
Total marbles = 35 + 10 + yellow
If probability of choosing yellow =p(y) = yellow/Total
p(y) = Y/(35 + 10 + Y)
Solve for Y,
p(y)*(35 + 10 + Y) = Y
45*p(y) + p(y)*Y = Y
45*p(y) = Y - p(y)*Y
Y = 45*p(y) / (1 - p(y))
To find the number of yellow marbles in the bag, set up an equation using the given probabilities. Simplify the equation and solve for the total number of marbles. Finally, substitute the value of into the equation to determine the number of yellow marbles.
Explanation:To solve this problem, we need to find the number of yellow marbles in the bag. Given that there are 35 blue marbles and 10 red marbles, we can subtract these two numbers from the total number of marbles to find the number of yellow marbles. Let's denote the number of yellow marbles as 'y'. We can set up the equation: 35 + 10 + y = total number of marbles. Since the probability of selecting a yellow marble is , we know that the ratio of yellow marbles to the total number of marbles is . This can be written as: y/total number of marbles = . Now, we can solve for 'y'.
By cross multiplying the ratio equation, we have: y = total number of marbles * . Now we can substitute this value of 'y' in the first equation: 35 + 10 + (total number of marbles * ) = total number of marbles. Simplifying this equation, we find: 45 + (total number of marbles * ) = total number of marbles. Rearranging the equation, we have: (total number of marbles * ) - total number of marbles = -45. Factoring out 'total number of marbles' from the left side, we get: total number of marbles * ( - 1) = -45. Dividing both sides of the equation by ( - 1), we find: total number of marbles = 45 / ( - ). Plugging in the value of , we can evaluate the expression: total number of marbles = 45 / ( - ) = - . Therefore, there are - yellow marbles in the bag.
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If f(x) = -x^2 – 1, and
g(x) = x + 5, then
g(f (x)) = [? ]x^2+[ ]x + [ ]
Answer:
g(f(x)) = - x² + 4
Step-by-step explanation:
To evaluate g(f(x)), substitute x = f(x) into g(x), that is
g(f(x))
= g(- x² - 1)
= - x² - 1 + 5
= - x² + 4
A recent study showed that the modern working person experiences an average of 2.1 hours per day of distractions (phone calls, emails, impromptu visits, etc.). A random sample of 50 workers for a large corporation found that these workers were distracted an average of 1.8 hours per day and the population standard deviation was 20 minutes. Estimate the true mean population distraction time with 90% confidence, and compare your answer to that of the study.
Answer:
True mean population distraction time with 90% confidence is
C.I[103.34 ,112.66] at 108
Step-by-step explanation:
Given:
Study Average hrs =2.1 =2.1 *60=126 minutes
For sample mean =1.8 *60= 108 minutes
S.D=20 and n=50
To Find:
True mean population distraction time with 90% confidence,
Solution:
90% C.I. means 90 % will fall in true mean and other will not .
So for that calculating the
Standard error=S.D/Sqrt(n)
S.E=20/Sqrt(50)
S.E=2.828
For 90% Confidence interval Z=1.65
C.I= mean±Z*Standard error
C.I=108±1.65*2.828
C.I=108±4.662
Hence C.I will range from 103.34 to 112.66
Study mean =126 minutes .
Here it ranges from 103.34 to 112.66
In this exercise we have to use the knowledge of probability to calculate this we will use percentage as:
[tex]C.I= 108[/tex]
Given the following information in the text we find that:
Study Average=126 minutesFor sample mean =108 minutesS.D=20 and n=50Then calculating the probability we find that:
[tex]Standard error=S.D/\sqrt(n)\\ S.E=20/\sqrt(50)\\ S.E=2.828\\ Z=1.65\\ C.I=108+4.662 [/tex]
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Which of the following equations describes the line shown below ?
Given:
Points on the line are (-2, 4) and (-4, -8).
To find:
The equation of a line.
Solution:
[tex]x_1=-2, y_1=4, x_2=-4, y_2=-8[/tex]
Slope of the line:
[tex]$m=\frac{y_2-y_1}{x_2-x_1}[/tex]
Substitute the given points.
[tex]$m=\frac{-8-4}{-4-(-2)}[/tex]
[tex]$m=\frac{-12}{-4+2}[/tex]
[tex]$m=\frac{-12}{-2}[/tex]
m = 6
Point-slope formula:
[tex]y-y_1=m(x-x_1)[/tex]
Substitute [tex]x_1=-2, y_1=4[/tex] and m = 6
[tex]y-4=6(x-(-2))[/tex]
y - 4 = 6(x + 2)
Substitute [tex]x_1=-4, y_1=-8[/tex] and m =6 in point-slope formula.
[tex]y-(-8)=6(x-(-4))[/tex]
y + 8 = 6(x + 4)
Option A and Option D are the correct answers.
Therefore y - 4 = 6(x + 2) and y + 8 = 6(x + 4) are the equations describes the shown line.
Here are the numbers of times 8 people ate out last month.
5, 6, 3, 3, 4, 4, 7, 7
Find the modes of this data set.
If there is more than one mode, write them separated by commas.
If there is no mode, click on "No mode."
Answer: 3,4,7
Step-by-step explanation:
5-x= -(x - 5)
how many solutions does this equation have
Answer:
Infinitely many solutions
Step-by-step explanation:
5-x= -(x - 5) ➡ 5 - x = -x + 5 add x to both sides and subtract 5 from both sides
5 - x - 5 + x = -x + x - 5 + 5 ➡0 = 0 in this case we say the equation has infinitely many solutions because whatever value you give for x there will always be a solution.
Bill's golf bag contains 9 white golf balls, 6 yellow golf balls, 1 orange golf ball, and 1 pink golf ball. Without looking, Tim is going to take 1 golf ball out of his bag to tee off with and a different golf ball out to putt with. What is the probability of Tim teeing off with a white ball and putting with an orange ball? P(white, then orange) Are the events above independent or dependent events?
Final answer:
The probability of Tim teeing off with a white ball and putting with an orange ball is 0.0331. The events are dependent.
Explanation:
To calculate the probability of Tim teeing off with a white ball and putting with an orange ball, we need to consider the total number of balls in the bag and the number of white and orange balls.
There are a total of 9 white balls, 6 yellow balls, 1 orange ball, and 1 pink ball in the bag. The probability of Tim teeing off with a white ball is 9 out of 17, since he can choose any of the 9 white balls out of the total 17 balls. After Tim tees off with a white ball, there are now 8 white balls left in the bag.
Next, Tim needs to putt with an orange ball. The probability of Tim putting with an orange ball is 1 out of 16, since there is 1 orange ball left in the bag and a total of 16 balls.
To find the probability of both events happening, we multiply the two probabilities:
P(white, then orange) = P(white) × P(orange|white) = 9/17 × 1/16 = 9/272 = 0.0331 (rounded to four decimal places).
The events of teeing off with a white ball and putting with an orange ball are dependent events, as the outcome of the first event affects the probability of the second event.