Answers
Answer:
Answer is A
Step-by-step explanation:
A) y = -1/2x represents a proportional relationship because the equation can be written in the form y = kx, where k is a constant. In this case, k = -1/2, which means that y is proportional to x with a constant of proportionality of -1/2.
B) y = 2x - 4 does not represent a proportional relationship because the equation cannot be written in the form y = kx. If we try to write it in this form, we get y/x = 2 - 4/x, which means that y/x is not constant. Therefore, y is not proportional to x with a constant of proportionality.
Related Questions
The point [ -√2/2, √2/2] is the point at which the terminal ray of angle 0 intersects the unit circle. What are the values for the cosine and cotangent functions for the angle 0
O cos0 = -√2/2, cot0=-1
O cos0=√2/2, cot0= 1
O cos0= √2/2, cot0= -1/2
O cos0= - √2/2, cot0= 1/2
PLEASE HURRY
Answers
The values for the cosine and cotangent functions for the angle x is
O cos0 = -√2/2, cot0 =-1
How to find the cosine and cotangent angleLet the angle be x
given that the point [ -√2/2, √2/2] is on the terminal ray of angle x
the x-coordinate of the point is -√2/2 and this is the cos hence
cos x = -√2/2.
To find the cotangent
the y coordinate is the sin therefore sin x = √2/2
tan x = sin x / cosx = (√2/2) / (-√2/2) = -1
and cotangent is the reciprocal of the tangent
cot x = 1 / tan x = -1/1 = -1.
cos x = -√2/2 and cot x = -1.
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An artist is stained glass window that is 3 and 1/2 ft x 2 and 3/4 ft. The artist designed to use squares of colored glass that measures 1/4 ft by 1/4 foot. How many colored squids did the artists use?
Answers
Answer:
The artist used 1680 colored squares of glass.
Tommy's Diner offers its clients a choice of regular and diet soda. Last night, the diner served 18 regular sodas and 82 diet sodas. What percentage of the sodas served were regular?
Answers
The percentage of the sodas that was served which were regular would be = 18%
How to calculate the percentage of sodas served?The quantity of regular sodas served = 18
The quantity of diet soda served = 82
The total number of soda served = 18+82 = 100
Therefore the percentage of soda that were regular would be;
= 18/100 × 100/1
= 18%
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if a1= 9 and =-3a n-1 then find the value of a5
Answers
If a₁ = 9 and sequence aₙ = -3aₙ₋₁ , then the value of a₅ is approximately equal to 729.
To find the value of a₅, we need to use the recursive formula provided, which relates each term in the sequence to the previous one. The formula given is a bit unusual, as it defines each term in terms of the negative three times the previous term. However, we can use this information to work out the value of a₅.
Starting with a₁ = 9, we can use the recursive formula to find the next few terms of the sequence:
a₂ = -3a₁ = -3(9) = -27
a₃ = -3a₂ = -3(-27) = 81
a₄ = -3a₃ = -3(81) = -243
a₅ = -3a₄ = -3(-243) = 729
Therefore, the value of a₅ is 729. We can check that this is correct by verifying that it satisfies the given recursive formula:
a₄ = -3a₃ = -3(81) = -243
a₅ = -3a₄ = -3(-243) = 729
This confirms that our solution is correct.
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I need help on 11-12 please i need this done asap! Can someone help me out
Answers
You would like to estimate the prevalence of a disease. You randomly sample 10 people from the population of interest and 4 of them have the condition. Using a Beta prior with αα and ββ both being 1010, what is the posterior mean prevalence closest to?
Answers
The required posterior mean prevalence is closest to 0.47.
We can use Bayes' theorem to find the posterior distribution of the prevalence parameter, given the data and the Beta prior:
posterior ∝ likelihood x prior
where the likelihood is given by the binomial distribution:
likelihood = P(observing 4 cases out of 10 | prevalence)
and the prior is a Beta distribution with parameters α = β = 10:
prior = Beta(α=10, β=10)
We can calculate the posterior distribution by multiplying the likelihood and prior, and then normalizing:
posterior = Beta(α=14, β=16)
where the posterior Beta distribution has parameters α=14 (10 + 4) and β=16 (10 + 10 - 4).
The posterior mean of a Beta distribution with parameters α and β is:
posterior mean = α / (α + β)
Plugging in the values of α and β from the posterior distribution, we get:
posterior mean = 14 / (14 + 16) = 0.467
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26. Tyler has been saving his winning lottery tickets. He has 23 tickets that are worth a total of $175. If each ticket is worth either $5 or $10, how many of each does he have?
Answers
Jodi’s car used 12 gallons of gas to travel 456 miles. How many miles did her car travel per gallon of gas? Show work
Answers
Answer:
To find the number of miles Jodi's car traveled per gallon of gas, we need to divide the distance traveled by the amount of gas used:
miles per gallon = distance traveled / amount of gas used
distance traveled = 456 miles
amount of gas used = 12 gallons
miles per gallon = 456 miles / 12 gallons
miles per gallon = 38 miles/gallon
Therefore, Jodi's car traveled 38 miles per gallon of gas.
Answer:
38 miles
Step-by-step explanation:
Set up your division: 456 / 12
456 divided by 12 is 38
So, Jodi's car travels at 38 miles per gallon of gas.
Find the measure of each angle indicated.
Z
?
A
B
56°
98
O 82°
O 103°
O 121°
42°
C
Answers
Answer:
The correct answer is 98°.
Answer: 82
Step-by-step explanation: all the angles of the triangle have to add up to 180 you all up the other angles and you get 98. 98= angle A your trying to find the outside angle we know that a line equals 180 degrees therefore we subtract that angle from 180 and get 82 which is your answer
Huang buys 3 shirts that each cost the same amount, a pair of pants that cost $12, and he pays with a $100 bill. Which expression represents the amount of change Huang should receive? Select three options.
100 – (12(3x))
100 – (3x+12)
(100 – 12) – 3x
(100 – 12)(x+x+x)
100 – (x+x+x) – 12
Mark this and return
Answers
An expression that represents the amount of Huang's change include the following: A. 100 – (12(3x)).
How to write and determine an expression that represents the amount of Huang's change?In this scenario and exercise, you are required to write and determine an expression that represents the amount of change which Huang should receive from the seller.
This ultimately implies that, an expression that models or represents the amount of Huang's change would have the form;
Huang's change = Money presented - Total cost of 3 shirts
Huang's change = 100 - (12(3x))
By simplifying further, we have the following expressions;
Huang's change = 100 - 36x
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Which fraction has the same value as 0.28
Answers
Answer:
7/25
Step-by-step explanation:
0.28 = 28/100 = 7/25
solve for x x/3=? please help me image attached
Answers
The value of x is 5.48 units
Let us assume that the left right triangle be ABC and the right triangle on the right side be ABD.
So, the larger right triangle would be DAC.
Consider thr outer right triangle DAC.
The length of the hypotenuse DC would be,
DC = CB + BD
DC = 3 + 7
DC = 10 units
Also right triangle ABC and DAC are similar triangles.
We know that the sides of the smilar triangles are in proportion.
Using the definition of similar triangles for DAC and ABC,
DA/AB = AC/BC = DC/AC
Consider, AC/BC = DC/AC
x/3 = 10/x
this is the required proportion.
x² = 3 × 10
x² = 30
x = 5.48 units
Thus the value of x = 5.48 units
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pls helppp this is so confusinggg
Answers
Answer: .025
Step-by-step explanation: we first have to find the distance between each term we divide 12/5 by 6 you have to change it into multiplication so you invert is to 12/5 times 1/6 you then get 12/30 you reduce that to become 2/5 if you want to test this to make sure it is right then you can. you then use a formula but I can't remember it so then you can just multiply it several times to find the answer. you get the answer by round from the thousandths
Solve for AB in simplified, rationalized form:
20/√2 20√2/2 40/√2 10√2
Answers
Answer:
AB = (20/√2)(√2/√2) = 10√2
The first three terms of a sequence are given. Round to the nearest thousandth (if necessary).
3,6,12,...
Find the 9th term.
Answers
Answer:
We can see that the sequence is formed by multiplying each term by 2 to obtain the next term. Therefore, the fourth term is 12 x 2 = 24, the fifth term is 24 x 2 = 48, and so on.
To find the ninth term, we can multiply the third term by 2 six times:
3 x 2^6 = 3 x 64 = 192
Therefore, the ninth term of the sequence is 192.
1. If 2x + 3y = 14 and 3x + 2y = 12, then x + y = ?
A) 5
B) 6
C) 7
D) 8
Answers
Answer:
x + y = 5.2-----------------
Given system:
2x + 3y = 14 and3x + 2y = 12Add up the two equations to get same coefficient on both variables:
2x + 3x + 3y + 2y = 14 + 125x + 5y = 265(x + y) = 26x + y = 26/5x + y = 5.2As we see none of the choices match the answer. It means either question or answer choices are inaccurate.
Please help me I need help
Answers
The series of transformations that would map polygon ABCDE onto polygon A'B'C'D'E' is given as follows:
A rotation followed by a translation.
What are transformations on the graph of a function?Examples of transformations are given as follows:
Translation: Translation left/right or down/up.Reflections: Over one of the axes or over a line.Rotations: Over a degree measure.Dilation: Coordinates of the vertices of the original figure are multiplied by the scale factor.For this problem, we have that the inclination of the figure changed, and the figure moved from the second quadrant to the first/fourth, hence the figure underwent a rotation of 90º counterclockwise about the origin.
The figure also had the vertices changed from the rotation, hence a translation was also applied.
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CAN SOMEONE HELP WITH THIS QUESTION?
Answers
Part(A),
The estimated area under the graph of f(x) over the interval [3, 5] using four rectangles and right endpoints is approximately 0.231 square units.
Part(B),
The estimated area under the graph of f(x) over the interval [3, 5] using four rectangles and left endpoints is approximately 0.2405 square units.
To estimate the area under the graph of f(x) = 1/(x²+1) over the interval [3, 5] using four rectangles and right endpoints, we can use the following formula:
[tex]R_n = \dfrac{(b-a)}{n} \times [f(x_1) + f(x_2) + ... + f(x_n)],[/tex]
where a = 3, b = 5, n = 4, and xi = a + i(b-a)/n for i = 0, 1, 2, ..., n.
Using this formula with the right endpoints, we get:
[tex]R_4 = \dfrac{(5-3)}{4 }\times [f(3.5) + f(4) + f(4.5) + f(5)][/tex]
R₄ = (1/2) x [0.361 + 0.250 + 0.178 + 0.132]
R₄ = 0.231
Hence, the estimated area under the f(x) graph utilizing four rectangles and the right endpoints over the range [3, 5] is about 0.231 square units.
To repeat the approximation using left endpoints, we can use the following formula:
[tex]L_n = \dfrac{(b-a)}{n} \times [f(x_0) + f(x_1) + ... + f(x_{n-1)],[/tex]
where [tex]x_i = a + i\dfrac{(b-a)}{n}[/tex] for i = 0, 1, 2, ..., n-1.
Using this formula with left endpoints, we get:
[tex]L_4 = \dfrac{(5-3)}{4} \times [f(3) + f(3.5) + f(4) + f(4.5)][/tex]
L₄ = (1/2) x [0.250 + 0.361 + 0.250 + 0.178]
L₄ = 0.2405
Therefore, the estimated area under the graph of f(x) over the interval [3, 5] using four rectangles and left endpoints is approximately 0.2405 square units.
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If 34 x 27 = 918, which of the following is true?
918 ÷ (-34) = 27
-918 ÷ 34 = -27
-918 ÷ 27 = 34
918 ÷ 27 = -34
Answers
Let’s see how we can rearrange the terms in the equation by performing opposite operation when moving them to different sides of the equal sign. For ex., subtraction and addition, multiplication and division, squared and square root, etc.
One way:
34 x 27 = 918
34 = 918/27 (not listed as a choice)
Another way:
34 x 27 = 918
27 = 918/34 (also not listed as a choice)
Another way:
34 x 27 = 918
(34 x 27) - 918 = 0
-918 = -(34 x 27)
-918/-34 = 27 (not listed as a choice)
A different way:
-918/34 = -27 (yes this is listed as a choice)
The first answer is NOT TRUE. -27 ≠ 27.
**The second answer IS TRUE!! -27 = -27.
The third answer is NOT TRUE. -34 ≠ 34.
The fourth answer is NOT TRUE. 34 ≠ -34.
CAN SOMEONE HELP WITH THIS QUESTION?
Answers
The displacement of the particle at time t is 11t - t², and the total distance traveled by the particle in 2 seconds is 9 meters.
The displacement of a particle moving along a straight line can be calculated by finding the area under the velocity-time graph. In this case, the velocity function is v(t) = 11 - 2t for 0 ≤ t ≤ 2.
To find the displacement at time t, we need to find the area under the velocity-time from t = 0 to t = t. The formula for displacement is the integral of the velocity function with respect to time:
s(t) = ∫v(t) dt = ∫(11 - 2t) dt = 11t - t²
Therefore, the displacement of the particle at time t is given by s(t) = 11t - t².
To find the total distance traveled by the particle in 2 seconds, we need to consider both the forward and backward motion. Since the velocity is decreasing at a constant rate of 2 m/s², the particle will come to rest at t = 11/2 seconds.
The total distance traveled by the particle in 2 seconds is given by:
d(2) = ∫|v(t)| dt = [tex]\int\limits^{11/2}_0[/tex] v(t) dt + [tex]\int\limits^2_{11/2}[/tex]|v(t)| dt from 11/2 to 2
= [[tex]\int\limits^{11/2}_0[/tex](11t - t²) ] + [[tex]\int\limits^2_{11/2}[/tex](-11t + t²) ]
= (121/2 - 121/4) + (4 - 121/2) = 9 meters
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Help me ASAPP Please :
Answers
The simplification of the fractions given above through multiplication would be;
1.) 9 11/12
2.) 11 19/40
How to simplify a given fraction through multiplication?For question 1.)
2 5/6 × 3 2/4
Change the mixed fraction to single fraction;
= 17/6 × 14/4
= 17/6 × 7/2
= 119/12
= 9 11/12
For question 2.)
5 2/5 × 2 1/8
= 27/5 × 17/8
= 459/40
= 11 19/40
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7
Select the correct answer from the drop-down menu.
Which term best fits the sentence?
After you make a decision, the next step in the decision-making process is to
whether you made the right choice.
Reset
Next
This step will help you det
Answers
Answer:
Step-by-step explanation: bot
solve the diagram for x
Answers
Answer:
Step-by-step explanation:
b. the length of the adjacent side :11
c. you want to know the x which is hypotenuse
d. SOH CAH TOA, you know a and wants to know h, so should use cos function
Triangle Angles
Yes or No
Answers
The sum of 150, 20 , and 20 is more than 180 degrees, therefore, it is not possible to draw a triangle.
How to Determine if a Set of Angles will Form a Triangle?A triangle is simply a three sided polygon that has three sides and three interior angles. When all three interior angles are added together, the sum is equal to 180 degrees according to the triangle sum theorem.
If we have a set of angles with the measure of 150, 20, and 20 degrees, respectively, the sum of these is more than 180 degrees.
150 + 20 + 20 = 190 degrees.
Therefore, it is not possible to draw a triangle with those set of angles.
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Determine the number of triangular films that can be formed by using the measurements a = 17 cm,b = 23 cm, and m∠A = 40°. Solve each triangle. Round to the nearest tenth.
PLS HELP!!!!
Answers
The solution of the triangle have been shown below.
How do you solve the triangle?To solve a triangle means to find the values of all its angles and sides. The method for solving a triangle depends on the given information.
Given that;
a/Sin A = b/SinB
Sin B = bSin A/a
B = Sin-1(bSin A/a)
B = Sin-1 (23Sin 40/17)
B = 60.4 degrees
Then we have that
C = 180 - (40 + 60.4)
= 79.4 degrees
Then;
a/sinA = c/Sin C
c= aSin C/Sin A
c = 17 * Sin 79.4/Sin 40
c = 16.71/0.643
c = 25.9
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Jenny has recently begun keeping her spending under better control, but she
still can't fully pay off her credit card. She maintains an average monthly
balance of about $1100, and her card charges a 24% annual interest rate,
which it bills at a rate of 2% per month.
How much is she spending on credit card interest per year?
Answers
Jenny is paying $334.82 per year on credit card interest.
How much is she spending on credit card interest?We need to find his annual interest payment which is:
= $1100 * 2% * 12 month
= $264
So, we have an annual interest payment of $264
We must account for interest that accumulates on the interest itself. To calculate this, we can use the formula: A = P (1 + r/n)^(nt) when P is $264, r is 24%, n is 12 and t is 1.
A = $264 * (1 + 0.24/12)^(12*1)
A = $264 * 1.26824179456
A = $334.815833764
A = $334.82.
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Select the correct answer from each drop-down menu.
Veronica wants to cut a sheet of paper into squares with an area of 12 square inches. For the best approximation, the length of each side of the square pieces of paper must be approximately equal to
inches. If each side were exactly this length, the area of each square would be
square inches.
Answers
The area of each square would be 36 square inch.
We have,
Area of sheet = 12 square inches
So, the area of square to be cut
= 12in × 12in
= 144 square in
Now, number of squares=4
So, area of each square =144÷4
=36 square inches
Thus, the side of each square is
= 36/4
= 6 inch
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10. i’d the area of a circle is 201.06 cm^2, find its diameter and circumference.
11. if m < MPL =63 degrees, find each measure
Answers
The diameter of the circle is 16.04 cm.
The circumference is 50.39 cm
How to solve for the diameterA = πr²
where A is the area of the circle and r is its radius.
square both sides
r = √(A/π) = √(201.06/π) = 8.02 cm
The diameter of the circle is twice the radius, so we can find it by multiplying the radius by 2:
d = 2r = 2(8.02) = 16.04 cm
Therefore, the diameter of the circle is 16.04 cm.
To find the circumference of the circle, we can use the formula:
C = 2πr
where C is the circumference and r is the radius. We already know the value of the radius, so we can substitute it into the formula:
C = 2π(8.02) = 50.39 cm
Therefore, the circumference of the circle is 50.39 cm.
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Select all numbers that are irrational.
Answers
Answer:
The irrational numbers are:
368.5468432...
14.19274128...
√.156
The United States has minted one-dollar silver coins called the American Eagle Silver Bullion Coin since 1986 . Each coin has a diameter of 40.6 millimeters and is 2.98 millimeters thick. The density of silver is 10.5 grams per cubic centimeter. Find the mass of an American Eagle Silver Bullion Coin to the nearest gram.
The mass of an American Eagle Silver Bullion Coin is about ( )
grams.
Answers
Answer:
41 grams
Step-by-step explanation:
trust i jus took it
The mass of an American Eagle Silver Bullion Coin is about 41 grams.
What is Multiplication?To multiply means to add a number to itself a particular number of times. Multiplication can be viewed as a process of repeated addition.
We have to given that;
Each coin has a diameter of 40.6 millimeters and is 2.98 millimeters thick. The density of silver is 10.5 grams per cubic centimeter.
Hence, Volume is,
V = 3.14 x (40.6/2)² x 2.98
V = 3857.96 mm³
Since, 1000 mm³ = 1 cm³
Hence, The mass of an American Eagle Silver Bullion Coin is,
⇒ 33857.9 / 1000 x 10.5
⇒ 41 grams
Thus, The mass of an American Eagle Silver Bullion Coin is, 41 grams
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