Answer: 7.333
Step-by-step explanation:
first move the three over 47-3 = 6y
the divide by - 6 to get y by itself 44/-6 = y
Can y’all help me with it pls
Answer:
1. D
2. C
3. C, A F
Step-by-step explanation:
Similarly, converting between units can be very important, and it can be done by canceling units. For example, suppose that I want to convert 66 feet/second into miles per hour. If I know that there are 5280 feet in a mile, 60 seconds in a minute, and 60 minutes in an hour, then I can convert the quantity by multiplying it by those conversion factors in such a way that they cancel: ( 1 s
66ft )( 1 min60 s )( 1hr 60 min )( 5280ft1 mile )=45mile/hr I can do this because each conversion factor is equal to one, and multiplying by one does not change anything. Notice that if you cancel all the units that you can, you are left with the desired units. The numbers are evaluated with normal arithmetic. Cglints = 1 filn 4 ZCOS=1 strord Now you try, except I'm going to make up some fictional units for you to work with: There are 12 grees in a zool. There are 2 grees in 10 twibbs. There are 5 grees in a blob. There are 6 glints in a filn. There are 4 zools in a strord. 12 grees =1 ZOO 2 grees =10 twibs 5 grees =1 bic (a) Convert the quantity 7 glint/twibb (i.e., 7 glints-per-twibb) into filn/strord (i.e., filns-per-strord). As always, show your work. (b) Often we use prefixes for scientific units. For example, there are one-hundred centimeters in a meter. Similarly, the prefix kilo- means a factor of 10
3. For example, a kilometer is 10 3 meters or 1000 meters. If you need to review these prefixes, there is a handy chart on Wikipedia: ht tpa://en.wikipedia.org/wiki/Metric_prefix. Convert your answer from part (a) into megafiln/strord (i.e., megafilns-per-strord). (Hint: Check your answer for plausibility. Should the number of megafilns-per-strord be bigger or smaller than the number of filns-per-strord? If someone is going 1 foot-per-hour, are they going a larger number of feet-per-hour or a larger number of miles-per-hour?)
The number of megafilns-per-strord should be smaller than the number of filns-per-strord since a mega is a conversion factor of 10³ and is greater than 1, hence 1 megafiln is greater than 1 filn.
(a) The given units can be converted as follows: 6 glints = 1 filn...
(1)12 grees = 1 zool...
(2)2 grees = 10 twibbs...
(3)5 grees = 1 bic...
(4)Note that the grees are in both the numerator and denominator of the second unit conversion factor (3). Hence we can cancel out the grees by using it twice in the numerator and denominator. Now using the given conversion factors in equation (1), we get:
7 glint/twibb=7 glint/ (10 grees/2 grees)=14 glint/10 grees=14 glint/ (5 grees/12 grees)=16.8 filn/strord
(b) We need to convert the result of part (a) from filn/strord to megafiln/strord.
1 mega = 106
Thus 1 megafiln = 106 filn
16.8 filn/strord = (16.8 filn/strord) x (1 megafiln/106 filn) = 1.68 x 10-5 megafiln/strord
The number of megafilns-per-strord should be smaller than the number of filns-per-strord since a mega is a factor of 10³ and is greater than 1, hence 1 megafiln is greater than 1 filn. Similarly, going 1 foot-per-hour would mean going a smaller number of feet-per-hour than going 1 mile-per-hour since there are 5280 feet in a mile.
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-3 > 2/3p
Find/Solve the inequality ^^
Answer:
im learning the same thing
What is the equation of a line that is perpendicular perpendicular to y=-(3)/(4)x+9 and goes through the point (6,4)
The equation of a line that is perpendicular to y=-(3)/(4)x+9 and goes through the point (6,4) is y = 4x/3 - 14/3.
Given line is y = -(3)/(4)x+9
We know that if two lines are perpendicular to each other, the product of their slopes is equal to -1.Let the required equation of the line be y = mx+c.
Therefore, the slope of the line is m.To find the slope of the given line:y = -(3)/(4)x+9
Comparing it with the general equation of a line:y = mx+c
We can say that slope of the given line is -(3/4).
Therefore, slope of the line perpendicular to the given line is: -(1/(-(3/4))) = 4/3
Let the equation of the perpendicular line be y = 4/3x+c.
The line passes through (6, 4).Therefore, we have:4 = 4/3 * 6 + c4
= 8 + cC
= 4 - 8
= -4
Therefore, the equation of the required line is:y = 4x/3 - 14/3.
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I NEED HELP ASAP IT'S DUE IN 40 MINUTES!!! I'LL GIVE BRAINLIEST!!!
Answer:
Transversal
Step-by-step explanation:
What is the area of a square with vertices: G(1, 0), O(5, 2), A(3, 6) and T(-1, 4)? Show your work!
By finding the side length of the square, we will see that the area is 20 square units.
How to get the area of a square?
For a square of side length S, the area is:
A = S^2
In this case, the side length of the square will be the distance between two consecutive vertices, so we can say that S is the distance between points G and O.
Remember that the distance between two points (x₁, y₁) and (x₂. y₂) is:
\(d = \sqrt{(x_2 - x_1)^2 + (y_2 - y_1)^2}\)
So the distance between the points G(1, 0) and O(5, 2) is:
\(S = \sqrt{(5 - 1)^2 + (2 - 0)^2} = \sqrt{20}\)
Then the area of this square is:
\(A = S^2 = (\sqrt{20})^2 = 20\)
The area is 20 square units.
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Consider the function represented by the equation . Which answer shows the equation written in function notation with x as the independent variable?
Answer:
B
Step-by-step explanation:
To make it easy
Three lions and three tigers are walking in a row to get ice cream. The lions are fighting so they are not walking next to each other. in how many different ways can the three lions and three tigers walk if no two lions are the same and no two tigers are the same?
In 612 different ways can the three lions and three tigers walk if no two lions are the same and no two tigers are the same.
What is Combination?An arrangement of objects where the order in which the objects are selected does not matter.
When no two lions are the same and no two tigers are the same, there are a total of 6! = 720 possible ways to arrange the lions and tigers in a row.
Subtract the number of arrangements where the three lions are walking next to each other.
Three ways to arrange the lions together, and then there are 3! = 6 ways to arrange the three lions within that group.
The remaining three animals (the tigers) can be arranged in 3! = 6 ways. Therefore, there are 3 x 6 x 6 = 108 arrangements where the lions are walking next to each other.
Total number of arrangements where no two lions are the same and no two tigers are the same, and where the lions are not walking next to each other.
720 - 108 = 612
Hence, In 612 different ways can the three lions and three tigers walk if no two lions are the same and no two tigers are the same.
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i need help plss its a spring break thing and i need help
Answer:
It's B, because thats where the two points cross
Step-by-step explanation:
Mavis wants to move each counter to an adjacent square (horizontally or vertically, but not diagonally), so that as originally, each square contains exactly one counter. In how many ways can she do this
Thus, there are over 2 trillion ways for Mavis to move each counter to an adjacent square without having any of them end up in the same square.
There are several ways Mavis can move each counter to an adjacent square, but the question is how many ways can she do this without having two counters end up in the same square.
First, let's consider the top row of the board. There are 7 counters, and each counter has two adjacent squares that it can move to.
However, the counter on each end only has one adjacent square to move to. So, the total number of ways to move the counters in the top row without any of them ending up in the same square is:
2 x 2 x 2 x 2 x 2 x 2 x 1 = 64
Now, let's consider the second row. There are also 7 counters in this row, but the two end counters now have two adjacent squares to move to.
However, there is a new constraint: each counter in the second row must move to a square that is not occupied by a counter in the top row.
This means that the first and last counters in the second row each have three possible squares to move to, while the other five counters each have two possible squares to move to.
So, the total number of ways to move the counters in the second row without any of them ending up in the same square is:
3 x 2 x 2 x 2 x 2 x 2 x 3 = 288
We can continue this process for each row, taking into account the constraints of not having any counters end up in the same square and not moving to squares already occupied in the previous row.
In the end, the total number of ways Mavis can move the counters to adjacent squares is the product of the number of ways for each row:
64 x 288 x 288 x 288 x 288 x 288 x 64 = 2,051,717,760,000
So, there are over 2 trillion ways for Mavis to move each counter to an adjacent square without having any of them end up in the same square.
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Michael's checking account balance was $375.00. Michael withdrew $160.00 three times. What would his new balance be now?
Answer:
$-105.00
Step-by-step explanation:
375.00 - 160.00 = 215.00
215.00 - 160.00 = 55.00
55.00 - 160.00 = -105.00
Answer:
160×3=480 and
375-480= -105
a woman buys a pair of shoes at a sale.she pays $60,saving $15 on the regular price.The percentage discount on the shoe is
A large group of friends needs to call a taxi service to get home. The taxi cab company charges $2 per mile
Answer:
36 dollars per person and they all will pay 2 dollars each the large group will hit a wall
Fifty students were eating lunch in the school cafeteria. The ratio of boys to girls was 25:25. Mrs. White asked Kym to explain what that ratio meant. Kym said it meant that 25% of the students in the cafeteria were boys.
Explain why Kym is incorrect.
Answer:
Kym is wrong because instead of 25% it would be 50 percent
Step-by-step explanation:
Answer:
Sample Response: The ratio of boys to total students was 25:50. Written as a fraction, this is 25/50. Rewrite the fraction with a denominator of 100 to 50/100. So 50% of the students were boys.
You might wanna change up some words so the teacher doesn't know your cheating lol
Please Help ASAP!!! Last question!
Initially, the ratio of Alex's toy cars to Pete's toy cars was 7:3. After Alex gave 20 toy cars to Pete, they each had an equal number of cars. how many toy cars did they have altogether?
Answer:
100 cars
Step-by-step explanation:
Alex: Pete
7: 3
Multiply by x to get the number of cars
Alex has 7x cars
Pete has 3x cars
Now Alex gives pete 20
Alex has 7x-20
Pete has 3x+20
They have the same number of cars so set the expressions equal
7x-20 = 3x+20
Subtract 3x from each side
7x-20-3x = 3x+20-3x
4x-20 = 20
Add 20 to each side
4x-20+20 = 20+20
4x= 40
Divide by 4
4x/4 = 40/4
x = 10
Alex had 7x = 7*10 = 70 to start
Pete had 3x = 3*10 = 30 to start
Together 70+30 = 100 cars
Answer:
100 cars
Step-by-step explanation:
Alex: Pete
7: 3
Multiply by x to get the number of cars
Alex has 7x cars
Pete has 3x cars
Now Alex gives pete 20
Alex has 7x-20
Pete has 3x+20
They have the same number of cars so set the expressions equal
7x-20 = 3x+20
Subtract 3x from each side
7x-20-3x = 3x+20-3x
4x-20 = 20
Add 20 to each side
4x-20+20 = 20+20
4x= 40
Divide by 4
4x/4 = 40/4
x = 10
Alex had 7x = 7*10 = 70 to start
Pete had 3x = 3*10 = 30 to start
Together 70+30 = 100 cars
Barney averages 88% through four tests. What does he need on the fifth test to raise his average to 90%
a ship leaves port at noon and has a bearing of the ship sails at 20 knots. how many nautical miles south and how many nautical miles west will the ship have traveled by 6:00 p.m.?
On solving the provided question we can say that the equation gives us 101.77 mi S; 63.59 mi W and S 39.4° W; 131.7 nautical miles
What is equation?An equation is a mathematical formula that connects two assertions using the equal sign (=) to denote equivalence.
The ship will have traveled 120 nautical miles in the six hours between noon and six o'clock using the formula distance = speed time distance (20 nm/h) (6 h).
The location of the ship will be in (S, W) coordinates.
\(120(cos(32), sin(32)) ≈ 120(0.848048, 0.529919) ≈ (101.77, 63.59)\)
The ship will have traveled 101.77 miles south and 63.59 miles west.
83.59). The distance from port will be ...
\(d = √(101.77^2 +83.59^2) = 131.7\\ arctan(83.59/101.77) ≈ 39.4\)
The bearing and distance are ...
S 39.4° W
131.7 nautical miles
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The school production of 'Our Town' was a big success. For opening night, 391 tickets were sold. Students paid $4.00 each, while non-students paid $6.00 each. If a total of $1786 was collected, how many students and how many non-students attended?
Answer:
280 students
111 non students
Step-by-step explanation:
number of students (S)
number of non students (N)
S+N=391 S=391-N
4S+6N=1786
substitute S
4(391-N)+6N=1786
1564-4N+6N=1786
subtract 1564 from each side
2N=222
N=111
S=391-111=280
The graph of a quadratic function with vertex (1, -3) is shown in the figure below.
Find the domain and the range.
Write your answers as inequalities, using x or y as appropriate.
Or, you may instead click on "Empty set" or "All reals" as the answer.
Check the picture below.
Find the surface area ASAP and plz show your work
Answer:60 3/4
Step-by-step explanation: 4 1/2 times 2 1/4 = 10 1/8
4 1/2 times 3 = 13 1/2
3 times 2 1/4 6 3/4
Round to the Nearest hundred
The equation of the line of best fit of the data is y = ________
The correlation coefficient is r = ______
Answer:
54353456452
Step-by-step explanation:
364564
whats the value of 1¹²
Step-by-step explanation:
Answer is 1, because, your multiplying 1 12 times, so it is
1*1*1*1*1*1*1*1*1*1*1*1=1
even if it was 1 to the power of 100, it's still going to be 1, if the base number is 1, then exponent can be any number and still getting 1.
If A and B are mutually exclusive, then P(A\capB) = 0.
A and B are independent if and only if P(A\capB) = P(A)P(B)
If A and B are two events with P(A) = 0.4, P(B) = 0.2, and P(A B) = 0.5. Find the following:
(a) P(A\capB) (b) P(A?\capB) (c) P(A?\cupB?) (d) P(A|B)
If A and B are independent events with P(A) = 0.4 and P(B) = 0.2. Find the following:
Roll a die once. The event of getting a "2" and the event of getting a "5" are (a) independent;
(b) mutually exclusive;
(c) Neither
Roll a die twice. The event of getting a "2" on the first roll and the event of getting a "5" on the second roll are
(a) independent;
(b) mutually exclusive;
(c) Neither
The probability of both events occurring is P(A ∩ B) = P(A)P(B) = 0.16^2 = 0.0256.
The event of getting a "2" and the event of getting a "5" on the first roll of a die are mutually exclusive events because they cannot both occur in the same trial. The probability of either of these events occurring is P(A) = 0.16, and the probability of both events occurring at the same time is P(A ∩ B) = 0.00.
The event of getting a "2" on the first roll and the event of getting a "5" on the second roll of a die are independent events. This can be confirmed using the formula P(A ∩ B) = P(A)P(B). The probability of getting a "2" on the first roll is P(A) = 0.16 and the probability of getting a "5" on the second roll is P(B) = 0.16. Thus, the probability of both events occurring is P(A ∩ B) = P(A)P(B) = 0.16^2 = 0.0256.
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rawing a causal diagram. (a) Draw a causal diagram for the research question ?do long shift hours make doctors give lower-quality care?? that incorporates the following features (and only the following features): i. Long shift hours ( "Long Shift") affect how tired doctors are ("Tiredness") affects the quality of care ("Quality of Care"). ii. How long shifts are is often decided by the characteristics of the hospital the doctor works at ("Hospital Characteristics"). There are plenty of things about a given hospital that also affect the quality of care, like its funding level, how crowded it is, and so on. iii. A new policy that reduces shift times may be implemented at a hospital (assumed to be determined by some unobservable change in policy preferences) but this policy does not affect the quality of care ("Policy"). b) Suppose we have a cross-sectional data set across different hospitals. This data set contains the hospital-level observations about (1) the quality of care ("Quality of Care"), (2) the average shift hours of doctors ("Shift hours"), (3) the survey result on how tired doctors are on average at the hospital, (4) various hospital characteristics ("Hospital Characteristics"), (5) Measurement of a policy that regulates shift-times, which is assumed to be randomly determined ("Policy"). We assume that the causal relationship between shift hours to the quality of care can be described with a linear regression model (In reality, they may be non-linear). 1. Suppose we regress "Quality of Care" on constant and "Shift Hours." Can we estimate the causal effect of changing shift hours on the quality of care? Why or why not? 2. Suppose we regress "Quality of Care" on constant, "Shift Hours," and "Hospital Characteristics." Can we estimate the causal effect of changing shift hours on the quality of care? Why or why not? 3. Suppose we regress "Quality of Care" on constant, "Shift Hours," "Tiredness," and "Hospital Characteristics." Can we estimate the causal effect of changing shift hours on the quality of care? Explain what the estimated coefficients on "Shift Hours" and "Tiredness" represent. 4. Suppose we regress "Quality of Care" on constant and "Policy." Can we estimate the causal effect of changing a shift-hours policy on the quality of care? Why or why not? 5. Suppose we do not observe "Hospital Characteristics" in the data set. Discuss how we can estimate the causal effect of changing the shift hours on the quality of care. [Hint: can we use the instrumental variable estimation?]
The effect estimation requires more than simple regressions of "Quality of Care" on "Shift Hours" (Part 1) or with "Hospital Characteristics" (Part 2). Including "Tiredness" (Part 3) or using variable (Part 5) is necessary.
To estimate the causal effect of changing shift hours on quality of care, several factors must be considered. Regression analysis with just a constant and "Shift Hours" (Part 1) fails to account for confounding variables, leading to biased estimates. Including "Hospital Characteristics" (Part 2) still overlooks omitted variable bias and endogeneity issues.
However, by adding "Tiredness" to the regression (Part 3), the direct and indirect effects of shift hours on quality of care can be estimated. The coefficient of "Shift Hours" represents the direct causal effect, while the coefficient of "Tiredness" captures the mediating effect. Regressing "Quality of Care" solely on "Policy" (Part 4) neglects confounders.
When "Hospital Characteristics" are unobserved, instrumental variable estimation (Part 5) can address endogeneity by identifying an instrumental variable unrelated to quality of care but affecting shift hours.
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find an ordered pair that is a solution to the equation 6x-y=5
Pleaseee Helpp. If the radius is 21 m and area of sector of the circle are 27.72 m2, calculate the angle at the centre of the circle.
Given:
Radius of a circle = 21 m
Area of a sector of the circle = 27.72 m²
To find:
The angle at the center of the circle.
Solution:
The area of a second is:
\(A=\pi r^2\times \dfrac{\theta}{360^\circ}\)
Where, r is the radius of the circle and \(\theta\) is the central angle.
Putting \(\pi=\dfrac{22}{7},\ r=21,\ A=27.72\) in the above formula, we get
\(27.72=\dfrac{22}{7}\times (21)^2\times \dfrac{\theta}{360^\circ}\)
\(27.72=1386\times \dfrac{\theta}{360^\circ}\)
\(27.72=3.85^\circ \times \theta\)
\(\dfrac{27.72}{3.85^\circ }=\theta\)
\(7.2^\circ=\theta\)
Therefore, the central angle of the sector is \(7.2^\circ\).
For a standard normal distribution, find:P(z < 0.18)Express the probability as a decimal rounded to 4 decimal places.Normal Table
In a standard normal distribution, the mean is 0 and the standard deviation is 1.
Then, according to the normal table, the probability of gettin z < 0.18 is given by the area on the left of z = 0.18 in the graph related to the distribution. Then we have: P (z < 0.18) = 0.5714
La necesito por favor
Answer:
4(h+3) = 20
Step-by-step explanation:
Para empesar, disculpa si mi español no es perfecto, pero igual me encataria a ayudarte.
Pues, se sabe que estas temporadas de practica vienen en groupitos de horas a la ves. Dijo que cada dia, ella practica por alguans horas, las cuales suman a 20 en total. Como la problema nos dice que ella practica 4 veces a la semana, tienemos 4 de estos groupitos de horas. Por eso, la respuesa es 4(h+3) = 20, porque ella va por estas 4 temporadas de practicar 3 horas en la manana y quien sabe cuantos en la tarde. Addicionalmente, este"quien sabe" numero de horas se representa con h.
3x - 2y= 5, 4x + 3y= 1
Answer:
x=17 and y=23 DONT SUE ME IF I GET THIS WRONG PLZZ ;-;
Step-by-step explanation:
Answer:
(1, - 1 )
Step-by-step explanation:
Given the 2 equations
3x - 2y = 5 → (1)
4x + 3y = 1 → (2)
Multiplying (1) by 3 and (2) by 2 and adding the result will eliminate y- term
9x - 6y = 15 → (3)
8x + 6y = 2 → (4)
Add (3) and (4) term by term to eliminate y
17x + 0 = 17
17x = 17 ( divide both sides by 17 )
x = 1
Substitute x = 1 into either of the 2 equations and solve for y
Substituting into (2)
4(1) + 3y = 1
4 + 3y = 1 ( subtract 4 from both sides )
3y = - 3 ( divide both sides by 3 )
y = - 1
solution is (1, - 1 )
ABCD is a rectangle. Diagonals AC and BD
intersect at O. Prove that ∆ABC and ∆BAD
are congruent. Plssss help mee
Step-by-step explanation:
Given:ABCD is a rectangle, AC and BD intersect at OTo prove: ∆ABC and ∆BAD are congruent.Proof: