Answer:
x>-3 is the answer hope it helps
Answer:
4 or up
Step-by-step explanation:
A given probability equation is P(x) = 2x-1/16 (where x can be 1,2,3 or 4) does this determine probability distribution why or why not
yes because The sum of all of the probabilities is not 1.
no because the sum of all of the probabilities is not 1.
no because the sum of all of the probabilities is 1.
yes because the sum of all of the probabilities is 1.
Answer:
Yes, because the sum of all of the probabilities is 1.
Step-by-step explanation:
The given probability equation is:
[tex]P(x)=\frac{2x-1}{16}[/tex], where x belongs to {1,2,3,4}.
[tex]P(1)=\frac{2(1)-1}{16}=\frac{1}{16}[/tex]
[tex]P(2)=\frac{2(2)-1}{16}=\frac{3}{16}[/tex]
[tex]P(3)=\frac{2(3)-1}{16}=\frac{5}{16}[/tex]
[tex]P(4)=\frac{2(4)-1}{16}=\frac{7}{16}[/tex]
Let us sum all the probabilities to obtain;
[tex]P(1)+P(2)+P(3)+P(4)=\frac{1}{16}+ \frac{3}{16}+\frac{5}{16}+\frac{7}{16}[/tex]
[tex]P(1)+P(2)+P(3)+P(4)=\frac{1+3+5+7}{16}[/tex]
[tex]P(1)+P(2)+P(3)+P(4)=\frac{16}{16}[/tex]
[tex]P(1)+P(2)+P(3)+P(4)=1[/tex]
Since the sum of all the probabilities is 1, it is a probability distribution
What is (2x-3y) (4x-y)
ANSWER
[tex](2x-3y) (4x-y) = 8 {x}^{2} -14xy + 3 {y}^{2} [/tex]
EXPLANATION
We want to expand (2x-3y) (4x-y)
We use the distributive property to obtain,
[tex](2x-3y) (4x-y) = 2x(4x-y) -3y(4x-y)[/tex]
We expand to get,
[tex](2x-3y) (4x-y) = 8 {x}^{2} -2xy -12xy + 3 {y}^{2} [/tex]
Combine the middle terms to obtain,
[tex](2x-3y) (4x-y) = 8 {x}^{2} -14xy + 3 {y}^{2} [/tex]
write down the next term in each following sequence
83,77,71,65...
Answer:
59,53,47,41,35 and many more
Step-by-step explanation:
substract 6
Answer:
59
Step-by-step explanation:
Each of them are subtracting 6 each time.
Identify the transformation that carries the figure onto itself.
A) rotate 540° clockwise about (5, 3) and reflect across the line y = 3
B) rotate 540° clockwise about (5, 3) and reflect across the line x = 3
Eliminate
C) rotate 450° clockwise about (5, 3) and reflect across the line y = 3
D) rotate 450° clockwise about (5, 3) and reflect across the line x = 3
Answer: a
hope this helps
Answer:
The answer is A) rotate 540° clockwise about (5, 3) and reflect across the line y = 3 HOPE I HELP :)
Step-by-step explanation:
The elephant at the zoo weighs 7 tons 400 pounds. How many total pounds does the elephant weigh?
Answer:
the answer is 2,800
Step-by-step explanation:
Answer:
The elephant would weigh 14,400 pounds
explanation:
2,000 pounds equals 1 ton.
First you would multiply 2,000 by 7 and that would equal 14,000.
So 7 tons converted to pounds would be 14,000
Finally, you would add the 400 pounds to 14,000 and you would get 14,400
Hopes this helps :) - A.Hazle
PLEASE HELPP!!! I WILL MARK BRAINLIEST!!!!!! The question is in the picture!
Answer:
The correct distributions are attached.
Find the measure of arc AB ,
And find the measure of segment DC .
Check the picture below, notice the tickmarks.
for a chord perpendicular to the diameter chord, their intersection makes two equal segements and those twin segments make twin arcs.
[tex]\bf 2x+5=3x-2\implies 5=x-2\implies \boxed{7=x} \\\\\\ y+8=5y\implies 8=4y\implies \cfrac{8}{4}=y\implies \boxed{2=y} \\\\[-0.35em] ~\dotfill\\\\ \widehat{AB}=2(7)+5\implies \widehat{AB}=19~\hfill \overline{DC}=5(2)\implies \overline{DC}=10[/tex]
Answer for arc AB:
since we know FB is the perpendicular bisector of AC then we know AB is the same length as BC so: 2x + 5 = 3x - 2 put everything on the left side
2x + 5 + 2 = 3x -2 + 2 2x + 7 = 3x put the variables on one side
2x - 2x + 7 = 3x - 2x 7 = x plug it in
2(7) + 5 = 19
AB = 19
Answer for segment DC:
since we know FB is the perpendicular bisector of AC then we know AD is the same as DC.
y + 8 = 5y put the variable on one side
y - y + 8 = 5y - y 8 = 4y simplify
8/4 = 4y/4
2 = y plug it in
5(2) = 10
DC = 10
2. Suppose that 0.5% is an annual interest rate. In the formula y = a. b*, what
value would you use for b?
Answer:
b=1.005
Step-by-step explanation:
b=(1+0.5%)
=1+0.005
=1.005
Answer:
b=1.005
Step-by-step explanation:
b=(1+0.5%)
=1+0.005
=1.005
Step-by-step explanation:
A football is kicked at ground level with an initial velocity of 64 feet per second
Find the height after 3 second and use one of the three forms and say which one would be the best to use and why
y= -16t^2+64t
y= -16(t-2)^2 + 64
y= -16t(t-4)
Answer:
The height of the football is 48 feet after 3 seconds
The first equation y = -16t² + 64t is the best
Step-by-step explanation:
* Lets explain how to solve the problem
- The equation of motion of an object on air without any
external force is y = ut + 1/2 at², where y is the height of the
object from the ground, u is the initial velocity, a is the
acceleration of gravity and t is the time
* Lets solve the problem
- A football is kicked at ground level with an initial velocity of
64 feet per second
∴ u = 64 feet per seconds
∵ The football is kicked upward
∴ a = -32 feet per seconds²
∵ y = ut + 1/2 at²
∴ y = 64t + 1/2 (-32)t²
∴ y = 64t - 16t²
* We will use the first equation y = -16t² + 64t
∵ y = -16t² + 64t
- We need to find the height of the football after 3 seconds
∵ t = 3 seconds
∴ y = -16(3)² + 64(3)
∴ y = 48
∵ y represents the height of the football
∴ The height of the football is 48 feet after 3 seconds
Which of the following is the equivalent to f(x)?
Answer:
2(25)x
Step-by-step explanation:
F(X) = 2(5)^2x two times five equals 10. 10 to the power of two equals 100 because it's ten times ten. So F(X) = 100^x because that means it's just 100. Also F(x) = 4(25)^x because four times 25 equals 100.
A pole that is 2.8 m tall casts a shadow that is 1.21 m long. At the same time, a nearby tower casts a shadow that is 48.75 m long. How tall is the tower? Round
Answer:
112.81 m.
Step-by-step explanation:
The pole and the tower and their shadows form 2 similar triangles so their corresponding sides are in the smae ratio.
Therefore we have the relation:
1.21 / 48.75 = 2.8 / x where x is the height of the tower.
Cross multiplying:
x = 2.8 * 48.75 / 1.21
= 112.81 m
Final answer:
To find the height of the tower, we use the proportion 2.8 m / 1.21 m = H / 48.75 m. After cross-multiplication and division, the height of the tower is calculated to be approximately 112.81 meters.
Explanation:
The student's question involves using similar triangles to determine the height of a tower based on the shadow it casts. To solve this problem, we can set up a proportion because the pole and tower will cast shadows at the same angle due to the sun's position. The proportional relationship is formed by the height of the pole over its shadow length being equal to the height of the tower over its shadow length.
Let's designate the height of the tower as H. The proportion will then be:
2.8 m / 1.21 m = H / 48.75 m
Cross-multiplying to solve for H, we get:
2.8 m \\times 48.75 m = H \\times 1.21 m
136.5 m = 1.21 m \\times H
To find H, divide both sides by 1.21 m:
H = 136.5 m / 1.21 m
H = 112.8099 m
So, the height of the tower is approximately 112.81 meters after rounding to two decimal places.
A magician asks two volunteers to each draw a card from a standard deck of cards. What is the probability that the first card is a heart and the second card is a diamond
Answer:
6.37%
Step-by-step explanation:
A deck of cards have 52 cards. There are 4 suits of 13 card each, those suits are Hearts, Clubs, Diamond and Spades.
The probability that the first card is a heart is:
[tex]P(Hearts) = \frac{13}{52}[/tex]
Now, the probabily that the second card is a diamond is:
[tex] P(Diamond | First card is Heart) = \frac{13}{51}[/tex]
The Probability that the first card is a heart and the second one a diamond is given by:
[tex]P(Hearts)[/tex]×[tex]P(Diamond | First card is Heart)[/tex]
[tex]= \frac{13}{52}\frac{13}{51}[/tex]
[tex]= 6.37[/tex]%
Answer:
6.37 %
Step-by-step explanation:
First card is 13/52 , the second card is 13/51.
So the probability is (13/52 × 13/51) = 6.37 %
The graph shows the solution to which system of inequalities?
A) y > -3x + 3 and y > 2x
B) y ≤ -3x + 3 and y ≤ 2x
C) y ≤ -3x + 3 and y ≥ 2x
D) y ≥ -3x + 3 and y ≥ 2x
Answer:
The graph shows the solution to the system inequalities
y ≥ -3x + 3 and y ≥ 2x ⇒ answer D
Step-by-step explanation:
* Lets study the graph to solve the question
- There are two solid lines, that means the sign of the inequalities
are ≤ or ≥
- One of the two line passes through the origin and the other
intersect the y-axis
- The shaded region is over the two lines, then the signs of the
inequalities are ≥ (greater than or equal)
* Lets make the equations of the two lines
∵ The form of the equation is y = mx + c, where m is the slope of the
line and c is the y-intercept
- The rule of the slope of the line wich passes through points (x1 , y1)
and (x2 , y2) is m = (y2 - y1)/(x2 - x1)
- Y-intercept means the line intersect the y-axis at point (0 , c)
* Now lets find from the graph two points on each line to make the
equations of the lines
# The line which passes through the origin
∵ Points (0 , 0) and (5 , 10) are on the line
- Let (0 , 0) is (x1 , y1) and (5 , 10) is (x2 , y2)
∴ m = (10 - 0)/(5 - 0) = 10/5 = 2
∴ The equation of the line is y = 2x + c
∵ The line passes through the origin
∴ c = 0
∴ The equation of the line is y = 2x
- The shaded is over the line
∴ The inequality is y ≥ 2x
# The line which intersect the y-axis at point (0 , 3)
∵ Points (0 , 3) and (1 , 0) are on the line
- Let (0 , 3) is (x1 , y1) and (1 , 0) is (x2 , y2)
∴ m = (0 - 3)/(1 - 0) = -3/1 = -3
∴ The equation of the line is y = -3x + c
∵ The line passes through the point (0 , 3)
∴ c = 3
∴ The equation of the line is y = -3x + 3
- The shaded is over the line
∴ The inequality is y ≥ -3x + 3
∴ The graph shows the solution to the system inequalities :
y ≥ -3x + 3 and y ≥ 2x
The graph shows the solution to the system inequalities
y ≥ -3x + 3 and y ≥ 2x ⇒ answer D
Explanation:
* Lets study the graph to solve the question
- There are two solid lines, that means the sign of the inequalities
are ≤ or ≥
- One of the two line passes through the origin and the other
intersect the y-axis
- The shaded region is over the two lines, then the signs of the
inequalities are ≥ (greater than or equal)
* Lets make the equations of the two lines
∵ The form of the equation is y = mx + c, where m is the slope of the
line and c is the y-intercept
- The rule of the slope of the line wich passes through points (x1 , y1)
and (x2 , y2) is m = (y2 - y1)/(x2 - x1)
- Y-intercept means the line intersect the y-axis at point (0 , c)
* Now lets find from the graph two points on each line to make the
equations of the lines
# The line which passes through the origin
∵ Points (0 , 0) and (5 , 10) are on the line
- Let (0 , 0) is (x1 , y1) and (5 , 10) is (x2 , y2)
∴ m = (10 - 0)/(5 - 0) = 10/5 = 2
∴ The equation of the line is y = 2x + c
∵ The line passes through the origin
∴ c = 0
∴ The equation of the line is y = 2x
- The shaded is over the line
∴ The inequality is y ≥ 2x
# The line which intersect the y-axis at point (0 , 3)
∵ Points (0 , 3) and (1 , 0) are on the line
- Let (0 , 3) is (x1 , y1) and (1 , 0) is (x2 , y2)
∴ m = (0 - 3)/(1 - 0) = -3/1 = -3
∴ The equation of the line is y = -3x + c
∵ The line passes through the point (0 , 3)
∴ c = 3
∴ The equation of the line is y = -3x + 3
- The shaded is over the line
∴ The inequality is y ≥ -3x + 3
∴ The graph shows the solution to the system inequalities :
y ≥ -3x + 3 and y ≥ 2x
Learn more about graph here:
https://brainly.com/question/19040584
#SPJ3
nathan solved this problem anya cut a ribbon into 5 equal pieces that measured 6.9in how long was the orignal length of the ribbon nathan thought the anwser was 350in
Answer:
34.5 inches
Step-by-step explanation:
To find the length of the original piece of ribbon, multiply 6.9 inches by 5, obtaining 34.5 inches.
By the way, it appears that your problem statement is not complete. Nathan thought ... what? Please be sure to share the entire problem next time.
Help me please please please
Answer:7
Step-by-step explanation:
3 tons of bark cost $15,540.00. What is the price per pound ?
Answer:
$2.59 per pound of bark.
Step-by-step explanation:
Convert 3 tons to pound
1 ton = 2,000 pounds.
3 x 2,000 = 6,000
Now divide the $ and the pounds to find the $ per pound rate
6,000 ÷ 15,540 = 2.59
$2.59
There are 11 basketball teams in a league. Of the teams, 4 will end up in the semifinals of the tournament. How many different combinations of teams could end up in the semifinals?
1,663,200
330
7,920
44
Answer:I’m thinking 330 but I’m not sure
Step-by-step explanation:
Answer:
Step-by-step explanation:
Answer: 330
Solution:
= (11x10x9x8 / 4x3x2x1)
= 7920 / 24
= 330
Ben has 100.00 in his savings account. He wants to save more money. He is looking at two investment plans. Under Plan A, he will increase his account balance by 20.00 per year. Under Plan B, he will increase his account balance by 15% per year. How much more will he save under Plan B in 10 years?
Answer:
The correct answer is 104.55
Step-by-step explanation:
From the given information we can write,
Principle amount = 100
To find the amount after 10 years in plan A
Now total = 100
Under plan A increase his account balance by 20.00 per year
Amount increased = 10 *20 = 200
Total = 100 + 200 = 300
To find the amount after 10 years in plan B
Total = 100
Amount after 10 yeras = 100[1 + 15/100]¹⁰
= 100 * 1.15¹⁰ = 100 * 4.04 = 404.55
To find the difference
Difference = 404.55 - 300
= 104.55
The correct answer is 104.55
50 points!!! please have serious answers
Use the data in the following table to answer the 3 questions below. Please show all calculations needed.
Daily Earnings $25 $26.50 $20 $23.50 $20
Find:
1: Median
2: Mean
3: Mode
PLEASE SHOW ALL STEPS
Median: Put the list in order from least to greatest.
$20, $20, $23.50, $25, $26.50
$20, $23.50, $25
$23.50 is the median. I took one from each side until I had one left.
Mean: Get the sum of them all and then divide by the number of earnings ( in this case )
$25 + $26.50 = $51.50 $51.50 + $20 = $71.50 $71.50 + $23.50 = $95
$95 + $20 = $115 $115/5 = $23
$23 is the mean.
Mode: Is the one that finds the frequency or in lamen terms it is the number which appears most often.
There's no steps for finding the expect counting how many times that number appeared.
$20 is the mode.
Answer:
He's correct
Step-by-step explanation:
Please help I'm very confused
Answer:
C and D
Step-by-step explanation:
You have to use the distributive property.
C. 9 times y is 9y and 9 times 7 is 63
D. 3 times 3y is 9y and 3 times 21 is 63
You are dealt one card from a 52-card deck. Find the probability that you are dealt a three or a red card.
Answer:
7/13
Step-by-step explanation:
26 cards are red. 2 are black threes. So the probability that a card is a three or red is 28/52, which reduces to 7/13.
a large storage container in the shape of a rectangular prism has the dimensions of the following: length 16.5m width 18.2m height 12m .how many 1 cubic m boxes can fit in the storage container?
Answer:
3603 boxes.
Step-by-step explanation:
Rectangular Prism is actually a cuboid.
Volume of cuboid = length * width * height.
It is given that length = 16.5 m, width = 18.2 m, and height = 12 m. Therefore:
Volume = 16.5 * 18.2 * 12 = 3603.6 cubic meters.
Volume is actually the capacity of the shape. If the box has the volume of 1 cubic meters, then the number of boxes that can fit in the rectangular prism will be:
Number of boxes to be fit = Volume of Large container/Volume of Small Container.
Number of boxes = 3603.6/1 = 3603 boxes.
Therefore, 3603 boxes will fit the rectangular prism and 0.6 cubic meters will be the spare space!!!
URGENT PLEASE HELP
How many 4-letter passords can be made using the letters A thought Z if...
a) Repetition of letters is allowed?
b) Repetition of letters is not allowed?
a) The answer will be 456976 because you multiply 26 and 4.
b) The answer will be 358800 bacause you multiply 26*25*24*23
URGENT
Which of the following is the graph of y=0.5sec (x+pi/3)-2?
Answer:
See attachment.
Step-by-step explanation:
The given function is
[tex]y=0.5\sec(x+\frac{\pi}{3})-2[/tex]
This is the graph of [tex]y=\sec(x)[/tex] that is shifted down 2 units and shifted to the left [tex]\frac{\pi}{3}[/tex] units.
When x=0, [tex]y=0.5\sec(0+\frac{\pi}{3})-2[/tex]
[tex]y=0.5\sec(\frac{\pi}{3})-2[/tex]
[tex]y=1-2=-1[/tex]
The y-intercept is -1.
The correct choice is shown in the attachment
Answer:
The attached graph is the answer
Step-by-step explanation:
* Lets revise the trigonometry translation
- If the equation is y = A sec(B(x + C)) + D
# Amplitude is A
- The Amplitude is the height from the center line to the peak .
Or we can measure the height from highest to lowest points and
divide that by 2
# period is 2π/B
- The Period goes from one peak to the next
# phase shift is C (positive is to the left)
- The Phase Shift is how far the function is shifted horizontally
from the usual position.
# vertical shift is D
- The Vertical Shift is how far the function is shifted vertically from
the usual position.
- If y = sec(x)
∴ A = 1 , B = 1 , C = 0 , D = 0
- That means the amplitude is 1, the period is 2π, no phase shift
or vertical shift
* Now lets solve the problem
∵ y = 0.5 sex(x + π/3) - 2
∴ A = 0.5
- The 0.5 tells us it will be half times taller than usual,
so Amplitude = 0.5
∴ B = 1
- The period is 2π
∴ C = π/3
- The π/3 means it will be shifted to the left by π/3
∴ D = -2
- The -2 tells us the vertical Shift = -2
* Lets calculate the y-intercept
- To find the y-intercept put x = 0
∴ y = 0.5 sec(0 + π/3) - 2
∵ sec(π/3) = 2
∴ y = 0.5(2) - 2 = 1 - 2 = -1
* Now lets look to the graphs to find the correct answer
- Only one graph has y-intercept is -1
- Look to the attached graph
- There is a vertical shift down 2 units
- There is a horizontal shift to the left by π/3 units
- The amplitude is 1/2 ⇒ (-1.5 - -2.5)/2 = 1/2, where -1.5 and -2.5
are the peak points
- The y-intercept is -1
* The attached graph is the answer
- For more understand look to the attached color graph
- The blue graph is y = sec(x)
- The red graph is y = 0.5 sec(x + π/3) - 2
Look at this table.
Hours of
Training
10
20
30
40
50
Monthly
Pay
1220
1420
1620
1820
2020
2220
2420
60
70
According to the table, how many hours of training would you need to have a
monthly pay of $2620?
Answer:
you need 8 hours of training
The length of segment AB is 9 mm.
Which statements regarding triangle ABC are correct? Check all that apply.
AB is the shortest segment in △ABC.
BC = 18mm
AC = 2AB
AC = BC is the longest segment in △ABC
Answer:
1 and 3
AB is the shortest segment in △ABC.
AC = 2AB
Step-by-step explanation:
Enjoy!!
Answer:
1. AB is the shortest segment in △ABC.
3. AC = 2AB
Step-by-step explanation:
edge24
The dot plot shows the time trials of an experiment. Each number on the dot plot represents the amount of time, in seconds, it took to complete a trial.
How many time trials were recorded during the experiment?
Enter the answer in the box.
Answer:
There were 18 trials recorded
Step-by-step explanation:
Each dot is a trial, the numbers under them is how long each that trial took.
Hope this helps.
The number of times trials were recorded during the experiment are:
18
Step-by-step explanation:We know that the dot plot is nothing but the representation of outcomes of a experiment where the dots represent the value of each outcome.
and the total number of dots represent the total number of items which are studied or recorded.
Here, the total number of trials that are recorded is equal to the total number of dots in the dot plot i.e. the total frequency of the set.
The data frequency table is as follows:
Value Frequency
15 2
17 3
19 2
20 2
21 1
23 4
24 1
25 3
Total frequency= 2+3+2+2+1+4+1+3=18
Hence, the answer is: 18
30 POINTS!
If an alien at THIS moment would be looking at Earth through a telescope from 100,000 light years away, what would it see?
In theory, yes. Light that left the earth 65 million years ago is now 65 million light years away, and an alien with a big enough telescope pointed directly at the earth might be able to see dinosaurs. Practically, such a telescope would be impossibly huge.
Answer:
Hmm, rather unusual question. I think that if an alien were looking at Earth 100,000 light years away, I don't think it would be able to see Earth! But if it could, it would see a planet filled with life, buildings, water and land.
Step-by-step explanation:
How do I use the distributive prop with the question 3(58-8)
Answer:
150
Step-by-step explanation:
3x58=174
3x8=24
174-24=150
PLZZ ANSWER ASAP!!!
The owner of the Golden Crust is ordering napkins for their restaurant. They purchase packs of napkins for the cost shown on the table. What is the best value?
A) 4 packs for $11.16
B) 6 packs for $17.94
C) 8 packs for $24.96
D) 15 packs for $39.75
Answer:
D
Step-by-step explanation:
To find out the price lets divide
11.16/ 4 = 2.79 per pack
17.94/6= 2.99 per pack
24.96/8= 3.12 per pack
39.75/15= 2.65 per pack
2.65 is the cheapest out of all of the choices
Answer:
The best choice is D. 15 packs for $39.75, because ti gives the best offer per pack.Step-by-step explanation:
The given table is
Packs Cost ($)
4 11.16
6 17.94
8 24.96
15 39.75
So, the best value here refers to the cheapest napkins. To find their price per unit , we need to divide the cost of the pack by the number of packs
[tex]\frac{11.16}{4}= \$2.79\\\frac{17.94}{6}=\$ 2.99\\\frac{24.96}{8} =\$3.12\\\frac{39.75}{15}=\$2.65[/tex]
You can observe that the cheapest price is $2.65.
Therefore, the best choice is D. 15 packs for $39.75, because ti gives the best offer per pack.