The calculated value of the missing side length of the triangle is 13.96 units
Calculating the missing side length of the triangleFrom the question, we have the following parameters that can be used in our computation:
The triangle
The missing side length of the triangle can be calculated using the law of sines
The law of sines states that
a/sin(A) = b/sin(B) = c/sin(C)
Using the above as a guide, we have the following equation
x/sin(61) = 15/sin(70)
Cross multiply
x = sin(61) * 15/sin(70)
Evaluate
x = 13.96 units
Hence, the missing side length of the triangle is 13.96 units
Read more about law of sines at
https://brainly.com/question/4372174
#SPJ1
the blank is measure of a countrys total ecenomic output
Answer:
The blank is "Gross Domestic Product (GDP)."
Bro needed money to buy lawn equipment he borrowed $500 for 7 months and paid $53.96 in interest what was the annual interest rate
The interest rate required to pay a simple interest of $53.96
from a principal of $500.00 is 18.50%.
How to calculate the rate of interest per year?Simple interest is expressed as:
[tex]\sf I = \dfrac{P\times r \times t}{100}[/tex]
Where I is interest, P is principal, r is interest rate and t is time.
Given that:
Principal P = $500Interest I = $53.96Elapsed time t = 7 months = 7/12 = 7/12 yearInterest rate r = ?Plug the given values into the above formula and solve for interest rate.
[tex]\sf I = \dfrac{P\times r \times t}{100}[/tex]
[tex]\sf r = \dfrac{I}{P\times t}[/tex]
[tex]\sf r = \dfrac{\$53.96}{( \$500 \times \frac{7}{12} )}[/tex]
[tex]\sf r = 0.18501[/tex]
[tex]\sf r = 0.18501\times100\%[/tex]
[tex]\sf r = 18.50\%[/tex]
Therefore, the interest rate is 18.50%.
Learn more about simple interest here: brainly.com/question/25845758
Kevin has money in two savings accounts. One rate is 11% and the other is 14%. If he has $450 more in the 14% and the total interest is $255, how much is invested in each savings account?
$6,500 is invested in 11% account.
$6,950 is invested in 14% account.
How much is invested in each account?Let us use x to represent amount invested in the 11% account
Let us use y be represent amount invested in the 14% account.
We can set up system of two equations:
[tex]x + y =[/tex] Total amount invested
0.11x + 0.14y + 450 = Interest earned
Substituting y (Invested - x) into 2nd equation, we get:
0.11x + 0.14(Amount invested - x) + 450 = 255
We solve for x
0.03x + 450 = 255
0.03x = 195
x = 195 / 0.03
x = $6500
As $6,500 is invested in the 11% account. The amount invested in 14% interest account is:
= $6,500 + $450
= $6,950.
Read more about equation
brainly.com/question/2972832
#SPJ1
5. A cyclist travelling at 24 km/h takes 15 minutes longer to complete a certain distance than his competitor travelling at 32 km/h. Calculate the distance covered
The calculated value of the distance covered is 2 km
Calculating the distance covered From the question, we have the following parameters that can be used in our computation:
Speeds = 24 km/h and 32 km/h
The time difference is given as
Time = 15 minutes
The distance covered is calculated as
Distance = (Change in speed) * Time
Substitute the known values in the above equation, so, we have the following representation
Distance = (32km/h - 24km/h) * 15 minutes
Evaluate
Distance = 2 km
This means that the distance covered is 2 km
Read more about distance at
https://brainly.com/question/7243416
#SPJ1
Which of the following is equivalent to 7x +5 < -2(4x-3)?
• x > 11
• -x < 1
• 15x < -11
• 15x < 1
To solve this inequality for x, we need to isolate x on one side of the inequality sign. Let's begin by distributing the -2 on the right-hand side:
7x + 5 < -2(4x - 3)
7x + 5 < -8x + 6
Adding 8x to both sides, we get:
15x + 5 < 6
Subtracting 5 from both sides, we get:
15x < 1
So the equivalent inequality to 7x + 5 < -2(4x-3) is 15x < 1.
Therefore, the answer is: 15x < 1.
Which of the following algebraic steps will solve the equation 3x/4=7/3 what is the solution
9x=28. x=28÷9
Find the area of the circle. Use pie = 3.14.
Answer: 314 mi
Step-by-step explanation:
Area of a circle = (pi) * (radius)^2
Radius is 1/2 the diameter
Radius = 10
10^2 = 100
100*3.14 = 314
4
ہے
In a school, 30% of the students have brown eyes. Find
the experimental probability that in a group of 4 students,
at least one of them has brown eyes.
The problem has been simulated by generating random
numbers. The digits 0-9 were used. Let numbers "2",
"4" and "8" represent the 30% of students with brown
eyes. A sample of 20 random numbers is shown.
Hint: First, count all of the random numbers that contain a 2, 4, or 8.
7918 7910 2546 1390 6075
1230 2386 0793 7359 3048
2816 6147 5978
5621
9732
9436 3806 5971
6173
1430
Number of samples with 2, 4, and 8 = [?]
Enter
The experimental probability that in a group of 4 students, at least one of them has brown eyes, based on the given sample, is 0.898 or 89.8%.
We know that "2", "4", and "8" represent the 30% of students with brown eyes.
Any occurrence of these numbers in the sample would indicate a student with brown eyes, while other numbers would represent students without brown eyes.
Let's examine the sample of 20 random numbers:
3, 7, 1, 6, 4, 2, 0, 9, 8, 5, 2, 7, 6, 8, 4, 3, 1, 2, 0, 4
Out of these 20 numbers, the following represent students with brown eyes: 4, 2, 8, 2, 8, 4, 2, 4.
Total possible combinations of 4 students from the sample = C(20, 4) = 4845 (using the combination formula)
Number of combinations without any student having brown eyes = C(12, 4) = 495 (choosing 4 students from the remaining 12 who don't have brown eyes)
The number of combinations where at least one student has brown eyes = 4845 - 495 = 4350
Experimental probability of at least one student having brown eyes
= 4350 / 4845
= 0.898
To learn more on probability click:
https://brainly.com/question/11234923
#SPJ1
In 2020, there were about 286 million (use the number as is, do not change into
millions) gas powered cars on the road. This number is expected to decrease at a rate
of 1.9% per year. In 10 years, if this information is correct then what is the best
prediction of the number of people driving gas powered cars? Round answer to a
whole number. Do not include units.
Using the concept of exponential decay, the predicted number of people is 233,176,000
What is the best prediction of the number of people driving gas powered cars?To predict the number of gas-powered cars on the road in 10 years, we'll apply the given annual decrease rate of 1.9% to the initial count of 286 million.
First, let's calculate the decrease rate per year:
Decrease rate = 1.9% = 1.9/100 = 0.019
Next, we'll calculate the predicted count after 10 years using the formula for exponential decay:
Predicted count = Initial count * (1 - Decrease rate)^Number of years
Substituting the values:
Predicted count = 286 million * (1 - 0.019)^10
Calculating the value:
Predicted count ≈ 286 million * (0.981)^10
Rounding the answer to the nearest whole number:
Predicted count ≈ 286 million * 0.816
Predicted count ≈ 233,176,000
Therefore, the best prediction for the number of people driving gas-powered cars in 10 years, based on the given information, is approximately 233,176,000.
Learn more on exponential decay here;
https://brainly.com/question/2456547
#SPJ1
Describe how r(x) - 3f(x+1) transforms the graph of the parent function f(x)=x^2 .
The function r(x) - 3f(x+1) transforms the parent function f(x)=x^2 by shifting it left by 1 unit, vertically stretching it by a factor of 3, and translating it downward by 3 units. The resulting graph is a parabola with vertex at (-1,-3) and a steeper shape.
The function r(x) - 3f(x+1) is a transformation of the parent function f(x)=x^2. Let's consider each transformation step by step.
First, the function f(x+1) represents a horizontal shift of the parent function f(x)=x^2 to the left by 1 unit. This means that the vertex of the parabola is shifted to the point (-1,0).
Next, the function 3f(x+1) vertically stretches the parabola by a factor of 3. This means that the distance between the vertex and the x-intercepts of the parabola is tripled, while the shape of the parabola remains the same.
Finally, the function r(x) subtracts a constant value from the transformed function. This translates the entire graph downward by 3 units.
For such more questions on Parent function:
https://brainly.com/question/19043302
#SPJ11
If p =(-4,6), find the image of p under the following rotation. 90 counterclockwise about the origin
The image of point P under a 90-degree counter Clockwise rotation about the origin is (-6, -4).
To find the image of point P = (-4, 6) after a 90-degree counterclockwise rotation about the origin, we can use the following formula:
(x', y') = (xcosθ - ysinθ, xsinθ + ycosθ)
where (x, y) are the coordinates of the original point, θ is the angle of rotation, and (x', y') are the coordinates of the rotated point.
In this case, θ = 90 degrees, so we have:
(x', y') = (-4cos90 - 6sin90, -4sin90 + 6cos90)
= (-6, -4)
Therefore, the image of point P under a 90-degree counterclockwise rotation about the origin is (-6, -4).
To know more about Clockwise rotation.
https://brainly.com/question/31903896
#SPJ11
Which of the following is not a way to represent the solution of the inequality 8x − (5x + 4) greater than or equal to −31? (1 point) x greater than or equal to −9 −9 less than or equal to x A number line with a closed circle on −9 and shading to the left A number line with a closed circle on −9 and shading to the right
A number line with a closed circle on -9 and shading to the left. This is the option that does not represent the solution of the inequality correctly.
1. Simplify the inequality: 8x - (5x + 4) ≥ -31
2. Distribute the negative sign: 8x - 5x - 4 ≥ -31
3. Combine like terms: 3x - 4 ≥ -31
4. Add 4 to both sides: 3x ≥ -27
5. Divide by 3: x ≥ -9
Now, let's examine the given options:
a) x greater than or equal to −9: This is a correct representation of the solution.
b) −9 less than or equal to x: This is also a correct representation of the solution, just written differently.
c) A number line with a closed circle on −9 and shading to the left: This is incorrect, as it shows x ≤ -9.
d) A number line with a closed circle on −9 and shading to the right: This is a correct representation of the solution, as it shows x ≥ -9.
Therefore, the answer is A number line with a closed circle on -9 and shading to the left. This is the option that does not represent the solution of the inequality correctly.
For more such questions on circle , Visit:
https://brainly.com/question/24375372
#SPJ11
Describe the transformation
Parent function: f(x) = x^4
Transformed function: g(x) = 5 - x^4
Answer: Reflection on the x-axis and moved 5 units upwards.
Step-by-step explanation:
First, we will transform the transformed function into an equation form we may be more familiar with.
g(x) = 5 - x⁴ ➜ g(x) = -x⁴ + 5
We see that this function is reflected on the x-axis (as given by the "-") and is moved 5 units upwards (as given by the "+ 5").
We can also graph this, see attached.
Which lists the possible types of roots for
f
(
x
)
=
3
x
4
+
7
x
3
+
2
x
2
+
x
+
9
?
Answer:
Please provide more details!
To determine the specific type of roots for the given quartic equation, we need to solve it or analyze its discriminant. However, without further calculations, we cannot determine the exact types of roots for f(x) = 3x^4 + 7x^3 + 2x^2 + x + 9.
Answer: ±1, ±3, ±9, ±[tex]\frac{1}{3}[/tex]
Step-by-step explanation:
f(x)=3x⁴+7x³+2x²+9
To find all possible roots, you take the last number and all its factors and put it over the first number and all its factors.
Factors of last and first:
9: 1, 3, 9
3: 1, 3
Put all of the factors of 9 divided by all factors of 3 and also make them + and - versions. Also eliminate any repeats like ± [tex]\frac{1}{1}[/tex] and ± [tex]\frac{3}{3}[/tex]
±1, ±3, ±9, ±[tex]\frac{1}{3}[/tex]
A pharmaceutical company receives large shipments of ibuprofen tablets and uses an acceptance sampling plan. This plan randomly selects and tests 26 tablets, then accepts the whole batch if there is at most one that doesn't meet the required specifications. What is the probability that this whole shipment will be accepted if a particular shipment of thousands of ibuprofen tablets actually has a 15% rate of defects?
(Report answer as a decimal value accurate to four decimal places.)
P(accept shipment) =
Answer:
0.8475
Step-by-step explanation:
We can model the number of defective tablets in the shipment as a binomial distribution with parameters $n=26$ (the sample size) and $p=0.15$ (the probability of a defective tablet).
To calculate the probability that the whole shipment will be accepted, we need to find the probability that the number of defective tablets in the sample is at most 1, which means that the shipment meets the required specifications.
An Italian trader bought merchandise in China and now wants to return home with it. However, he doesn’t want to return via the Silk Road. Choose all the spots on the route he can take to reach Italy.
After purchasing goods from China, the Italian trader has a number of non-Silk Road destinations to choose from, including:
Location in India
The Indian Ocean's Spot
the region rising from the Red Sea
the region above Italy
The Silk Road was what?The network of commercial routes known as the "Silk Road" was used for more than 1,500 years, from the Han dynasty of China's opening of trade in 130 BCE to the Ottoman Empire's suspension of trade with the West in 1453 CE.
Over a distance of over 6,437 kilometers (4,000 miles), the Silk Road passed through some of the most challenging landscapes in the world, including the Pamir Mountains and the Gobi Desert. Because no single administration was in charge of maintenance, the roads were usually in poor condition.
Learn more about Silk Road: brainly.com/question/24869354
#SPJ1
I don’t understand this question
If f(x)=3x²-2x+5 and g(x) = x³+4x²-1 then the function obtained by multiplying two functions is 3x⁵+10x⁴-3x³+17x²+2x-5
The two functions are f(x)=3x²-2x+5 and g(x) = x³+4x²-1
We have to find (f×g)(x)
(f×g)(x)= f(x)g(x)
=(3x²-2x+5)( x³+4x²-1)
=3x⁵+12x⁴-3x²-2x⁴-8x³+2x+5x³+20x²-5
Combine the like terms
=3x⁵+10x⁴-3x³+17x²+2x-5
Hence, the function obtained by (f×g)(x) is 3x⁵+10x⁴-3x³+17x²+2x-5
To learn more on Functions click:
https://brainly.com/question/30721594
#SPJ1
PLEASE HELP WILL GIVE ALOT OF PTS !! :) perform the indicated operations.
Answer:
The answer is down below
Step-by-step explanation:
1 -6 0 3 6
9 7 + 1 4 7
5 3 2 5 8
= 1+0 -6+3 0+6
9+1 7+4 0+7
5+2 3+5 0+8
= 1 -3 6
10 11 7
7 8 8
please help me with my geometry i cant fail this class or i’ll have to move out of my parents house :(
Answer:
lj= 18 feet
mgm=52°
Step-by-step explanation:
lj=GJ/2=36/2=18feet
mGM=mHJ=52°
Please help me with this thank youuuuu
"g" is the subject of the equation in terms of "a" and "h."
To make "g" the subject of the equation "a = (g + h)/2," we can rearrange the equation to isolate "g."
Let's follow the steps:
Multiply both sides of the equation by 2 to eliminate the fraction:
2a = g + h
Subtract "h" from both sides to isolate "g":
2a - h = g
By performing these operations, we have successfully isolated "g" on one side of the equation.
The resulting equation is "g = 2a - h."
This equation shows that "g" is equal to two times "a" minus "h."
By substituting the given values of "a" and "h" into the equation, you can calculate the corresponding value of "g."
If we have "a = 5" and "h = 3," we can substitute these values into the equation to find the value of "g":
g = 2(5) - 3
g = 10 - 3
g = 7
"a" is 5 and "h" is 3, the value of "g" is 7 according to the equation "g = 2a - h."
The equation "g = 2a - h" allows you to express "g" in terms of "a" and "h" by subtracting "h" from twice the value of "a."
For similar questions on subject
https://brainly.com/question/30613029
#SPJ8
The Graph Of F′, The Derivative Of A Function F, Consists Of Two Line Segments And A Semicircle, As Shown In The Figure Above. If F(2)=1, Then F(−5)=
https://apcentral.collegeboard.org/media/pdf/ap-calculus-bc-practice-exam-2012.pdf?course=ap-calculus-bc question 18
The graph of the derivative, F', shows that the slope is positive until x = 2 (the right end of the semicircle) and then becomes zero.
Since the graph of F' consists of two line segments and a semicircle, we can determine the values of F using the information provided.
Let's break down the problem into different intervals based on the graph:
Interval (-∞, -5):
Since we don't have specific information about this interval, we cannot determine the exact value of F(-5).
Interval (-5, 0):
In this interval, we have a line segment. Let's assume the equation of the line segment is y = mx + b. We can find the equation of this line segment by using the slope-intercept form of a line and the given point (2, 1).
The slope of the line can be calculated using the difference in y-coordinates divided by the difference in x-coordinates:
m = (1 - F(2)) / (2 - (-5)) = (1 - 1) / 7 = 0/7 = 0
Since the slope is 0, the equation of the line becomes y = b. Plugging in the point (2, 1) into the equation, we get:
1 = b
Therefore, the equation of the line segment for the interval (-5, 0) is y = 1.
Interval (0, ∞):
In this interval, we have a semicircle. The graph of the derivative, F', shows that the slope is positive until x = 2 (the right end of the semicircle) and then becomes zero. This indicates that the original function F is increasing until x = 2 and remains constant afterward.
Since F(2) = 1, we can conclude that F(x) = 1 for x ≥ 2. Therefore, F(-5) cannot be determined based on the given information.
For more such questions on slope , Visit:
https://brainly.com/question/3493733
#SPJ11
Given: f(x) = 4.1 42 4x-10 x-2 Determine the x- and y-intercepts of f. 4.3 a x=2² Write f(x) in the form: f(x)=- + q. Draw the graph of f, clearly show the intercepts with the axes and the asymptotes.: 15. 44 Give the equations of the asymptotes of f(x) + 3.
f(x) = 4.1/(42.4x-10(x-2)), x-intercept = -4.878, y-intercept = (0,-2.05), asymptotes: vertical at x=2, horizontal at y=0, and slant at y=4.1/8x.
Given: f(x) = 4.1/(42.4x-10(x-2))
To find the x-intercept, we set f(x) to zero and solve for x:
0 = 4.1/(42.4x-10(x-2))
0 = 4.1/(32.4x+20)
0 = 4.1/4.08(x+4.878)
So, the x-intercept is x = -4.878.
To find the y-intercept, we set x to zero and solve for f(x):
f(0) = 4.1/(42.4(0)-10(0-2))
f(0) = -2.05
So, the y-intercept is (0,-2.05).
To write f(x) in the form f(x) = -1/(ax + b) + q, we can simplify the expression as follows:
f(x) = 4.1/(42.4x-10(x-2))
f(x) = 4.1/(32.4x+20)
f(x) = 4.1/4.08(8x+5)
So, a = 8, b = 5, and q = 4.1/4.08.
To draw the graph of f, we plot the x- and y-intercepts and the vertical asymptote x = 2.
We can find the horizontal asymptote by noting that as x becomes very large or very small, the term 10(x-2) dominates the expression, so f(x) approaches 4.1/-10x. Thus, the horizontal asymptote is y = 0.
To find the equations of the slant asymptotes, we divide the numerator by the denominator using long division:
4.1
8x + 5 | 4.1
- 4.1
0
So, the slant asymptote is y = 4.1/8x.
Therefore, the intercepts of f are x = -4.878 and (0,-2.05), and the equation of f(x) in the form f(x) = -1/(ax + b) + q is f(x) = -1/(8x + 5) + 1.0039.
The graph of f has intercepts with the x-axis at x = -4.878 and the y-axis at (0,-2.05), a vertical asymptote at x = 2, a horizontal asymptote at y = 0, and a slant asymptote at y = 4.1/8x.
To learn more about intercept visit :
https://brainly.com/question/1884491
#SPJ1
al Thinking and Logic: Practice
Question 4 of 5
Select the correct answer from each drop-down menu.
Complete the contrapositive of the following statement.
If x is a multiple of 10, it is an even number.
If x is
then it is
Submit
The contrapositive of the statement "If x is a multiple of [tex]10[/tex], it is an even number" is "If [tex]x[/tex] is not a multiple of [tex]10[/tex], then it is not an even number."
To complete the contrapositive of the statement "If [tex]x[/tex] is a multiple of [tex]10[/tex], it is an even number," we need to negate and reverse the original statement.
The original statement can be represented as:
[tex]\[P: \text{If } x \text{ is a multiple of 10, then } x \text{ is an even number.}\][/tex]
The negation of this statement is:
[tex]\[\neg P: \text{If } x \text{ is not an even number, then } x \text{ is not a multiple of 10.}\][/tex]
To form the contrapositive, we reverse the implications:
[tex]\[\text{Contrapositive: If } x \text{ is not a multiple of 10, then } x \text{ is not an even number.}\][/tex]
In symbolic notation, the contrapositive would be:
[tex]\[\text{Contrapositive: } \neg P: \text{If } \neg(x \text{ is a multiple of 10}), \text{ then } \neg(x \text{ is an even number}).\][/tex]
Therefore, the contrapositive of the statement "If x is a multiple of [tex]10[/tex], it is an even number" is "If [tex]x[/tex] is not a multiple of [tex]10[/tex], then it is not an even number."
For more such questions on contrapositive: https://brainly.com/question/30045217
#SPJ11
Similar or not similar
SSS or AAA or SAS
Answer:
These triangles are not similar because the ratios of corresponding sides are not equal.
Which terms can be used to classify the
triangle by angle measures and side
lengths?
The terms that can be used to classify the triangle by angle measures and side lengths include the following: D. acute and isosceles.
What is an isosceles triangle?In Mathematics and Geometry, an isosceles triangle simply refers to a type of triangle with two (2) sides that are equal in length (side lengths) and two (2) equal angles.
This ultimately implies that, an isosceles triangle comprises two (2) side lengths that are equal and two (2) angles with the same magnitude.
In conclusion, the angle measures of each of the angles represented by this triangle is equal to 90 degrees and as such, they are acute angles.
Read more on isosceles triangle here: brainly.com/question/19238666
#SPJ1
Missing information:
The question is incomplete and the complete question is shown in the attached picture.
(Will give brainlist)
Find the indicated measure for circle P.
(26) The length FE in the intersecting chords is 6.
(27) The length of arc AE = 64⁰.
We know that,
The length FE is computed using the intersecting chord theorem, as shown below;
The power of a point theorem, commonly known as the intersecting chord theorem, says that:
If two chords of a circle cross inside the circle, the product of the lengths of one chord's segments equals the product of the lengths of the other chord's segments.
FE ≅ AB = 6
The length of the arc AE is computed as follows:
⇒ arc of AE + arc of AB + arc of ED = 180
Since sum of angles of a semi circle
⇒ arc of AE + 58 + 58 = 180
⇒ arc of AE + 116 = 180
⇒ arc of AE = 64
Learn more about chord angles here:
brainly.com/question/30920640
#SPJ1
MN is tangent to OK. What is mZK?
N
M
43°
m2K =
K
The size of angle K (m∠K) as shown in the circle is 50°.
What is a tangent to a circle?Tangent to a circle is the line that touches the circle at only one point.
To calculate the size of angle K (m∠K), we use the formula below
Formula:
m∠K+m∠N+m∠M = 180 ( Sum of the angle of a triangle)....................... Equation 1From the diagram,
Given:
m∠N = 40°m∠M = 90° (The angle formed a tangent and the radius of a circle is 90°)Substitute these values into equation 1
m∠K+40+90 = 180m∠K+130 = 180m∠K = 180-130m∠K = 50°Learn more about tangent to a circle here: https://brainly.com/question/30385886
#SPJ1
7. When you eat an ice cream scoop with a volume of 179.59 cubic inches, find the radius.
Then find the surface area of that scoop. (Normal thoughts of a geometry
ice cream.) *****hint - go backwards****
student eating
Answer:
radius: 3.50 inarea: 153.9 in²Step-by-step explanation:
You want the radius and area of a spherical ice cream scoop with a volume of 179.59 cubic inches.
VolumeThe volume of a sphere is given by the formula ...
V = (4/3)πr³
RadiusThen the radius will be ...
r = ∛(3V/(4π))
r = ∛(3·179.59/(4π)) ≈ 3.49997 . . . . in
The radius is about 3.50 inches.
AreaThe area of a sphere is given by ...
A = 4πr^2
A ≈ 4π·(3.49997 in)² ≈ 153.9355 . . . . in²
The area of that scoop is about 153.9 square inches.
__
Additional comment
A scoop 7 inches in diameter would likely be served in a bowl.
#95141404393
Select the correct answer. Solve the following equation for x. x2 - 36 = 0
Answer:
x=18 or x=6
Step-by-step explanation:
2x=36
x=18
if it was x^2 then
x^2=36
x=6
A fair number cube with faces numbered 1 through 6 was rolled 12 times. The cube landed with the number 2 face up 6 times. What is the difference between the experimental probability and the theoretical probability of the number 2 landing face up?
Select one:
a. 1/6
b. 1/3
c. 1/2
d. 2/3