Answer:
A and C
Step-by-step explanation:
the guy above me is right : )
A simulation for the given scenario using a standard deck of playing cards would be,
Draw a card from a deck of standard playing cards three times, with face cards representing those who prefer a comedy and the other cards representing those who prefer an action movie.
What is probability of random selection?It is defined as a sampling technique in which the researcher chooses samples from a larger population using a method based on the theory of probability.For a participant to be considered as a probability sample, he/she must be selected using a random selection.According to the question,
A cable channel survey showed
on Saturday night subscribers preferred watching a comedy = 50%
subscribers preferred watching a Action = 50%
We need to design the scenario using a standard deck of playing cards
In a playing cards sets,
50% of playing cards set = subscribers preferred watching a comedy
& rest 50% of playing cards set = subscribers preferred watching Action
But we want to estimate the probability that exactly two of three randomly picked subscribers prefer watching action movie on a Saturday night,
Here, the face cards are 12 in number out of 52.
So, there are 40 number cards.
So, the probability of a number card occurring is more.
So, as it is to be estimated that 2 out of 3 people prefer to watch action movie
This means, Draw a card from a deck of standard playing cards three times, with face cards representing those who prefer a comedy and the other cards representing those who prefer an action movie.
Hence a simulation for the given scenario using a standard deck of playing cards would be,
Draw a card from a deck of standard playing cards three times, with face cards representing those who prefer a comedy and the other cards representing those who prefer an action movie.
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7. Write the following expression in simplest form: -10 + 7a- 8a - 11 + 2a? + 6a
15 points and sorry
Answer:
2a+6a+7+8+10+11
Step-by-step explanation:
The Value of y in the equation 2y-2=16 is?
Answer:
9
Step-by-step explanation:
To answer this question, you must isolate the variable y.
Step 1.
add 2 to each side to isolate 2y
2y-2+2=16+2
the twos on the left cancel out and you are left with: 2y=18
Step 2.
divide each side by 2 to isolate y completely
2y/2=18/2
y=9
Morning Donuts has 92 donuts for sale, including 8 jelly-filled donuts. What is the probability that a randomly selected donut will be a jelly-filled donut? Write your answer as a fraction or whole number.
Answer:
Probability [selected donuts a jelly-filled donut] = 2 / 23
Step-by-step explanation:
Given:
Total number of donuts = 92
Number of jelly-filled donuts = 8
Find:
Probability [selected donuts a jelly-filled donut]
Computation:
Probability [selected donuts a jelly-filled donut] = Number of jelly-filled donuts / Total number of donuts
Probability [selected donuts a jelly-filled donut] = 8 / 92
Probability [selected donuts a jelly-filled donut] = 2 / 23
The campus bookstore at a local university is interested in finding out whether the textbook preference and the class level (freshman, sophomore, junior, senior) of the student are associated. A random sample of 100 students is obtained, and each student in the sample is asked which textbook he or she prefers: new books, used books, or digital books. The students are also asked whether their class level is freshman, sophomore, junior, or senior.Which of the following is the appropriate test for the investigation?A. A one-sample tt-test for a population meanB. A two-sample tt-test for a difference between meansC. A chi-square goodness-of-fit testD. A chi-square test of homogeneityE. A chi-square test of independence
Answer:
The appropriate test for the investigation is;
E. A chi-square test of independence
Step-by-step explanation:
The chi-square test for independence is for the analysis of two categories from within a population to evaluate the existence of association among the different categories within the two variables
The chi-square test for independence is used for the analysis of contingency (frequency) table
Therefore, the appropriate test for the investigation in finding out (1) the textbook preference and (2) the class level of the associated student is the chi-square test of independence
what is five times the sum of m and n
Answer:
0
Step-by-step explanation:
Answer:
(m+n)5
Step-by-step explanation:
(m+n)+(m+n)+(m+n)+(m+n)+(m+n) = (m+n)5
find the annual premium for fire insurance on a $60,000 home at a rate of $.83 per $100
Answer:
A premium for fire insurance could be lower than someone else's if: Building is close to a ... Using the tables in the handbook, the total annual premium is: $1,554 ... On a fire that causes $60,000 of damage.
Step-by-step explanation:
A store pays $20 for leggings they mark up the price 35% what is the selling price
Answer:
View Picture
Step-by-step explanation:
HELPPPPPP PLEASEEEEEEE WILL GIVE B !!!!
Tickets for the CTA train cost $0.75 for students and $3.25 for
chaperones. If a school trip has a total of 50 people, how many students
and chaperones are on the trip? *
help i need this asap
HINT: Try graphing your equations or multiplying the cost equation by 4.
A ramp 23ft long rises to a platform. The bottom of the platform is 11ft from the foot of the ramp. Find x, the angle of elevation of the ramp. Round your answer to the nearest tenth of a degree.
Answer:
61.4°
Step-by-step explanation
Given
Length of the ramp = 23ft = hypotenuse
Base of the ramp = 11ft = Adjacent
Required
Angle of elevation x
Using the SOH CAH TOA identity
Cos theta =adj/hyp
Cos x = 11/23
Cos x = 0.4782
x = arccos0.4782
x = 61.42°
Hence the angle of elevation is 61.4°
Find the value of x!I’ll mark the BRAINIEST
Answer:
106
Step-by-step explanation:
Interior angles add up to 360 degrees.
360-74-74(angles across are the same)=212
212/2=106 degrees
Answer:
x = 106°
Step-by-step explanation:
adjacent angles in this parallelogram are supplementary (add to 180°)
Please help I will mark you as the brainiest, I sincerely am grateful if you answer~
Answer:
The amount of money they will spend at the restaurant is $35.16
Step-by-step explanation:
From the information given in the question, we have;
The amount Jessica, Genesis, and Violet received as bill at the restaurant, X = $29.30
The amount they wished to leave as tip, T = 20% (of the bill)
Therefore, the amount of money they will spend at the restaurant, 'A', is given as follows;
A = X + T
T = 20% of X = 20/100 × X = 0.2·X
∴ A = X + 0.2·X = 1.2·X
X = $29.30
A = 1.2·X = 1.2 × $29.30 = $35.16
The amount of money they will spend at the restaurant, A = $35.16
Train A leaves the station traveling east at 50 mph while train B leaves the station 30 minutes later traveling west at 65 mph. Choose the equation below that represents the distance in miles between the two trains, D, as a function of T, the time in hours after train B has departed.
Answer:
Change 45 min to .75 hrs
Distance = speed * time
Train A's distance = 55(t+.75)
Train B's distance = 70t
The equation
D(t) = 70t + 55(t+.75)
If tan A = (7/2), then which of the following is closest to the measure of
Answer:
The option which is the closest to the measure of ∠A is 74°
Step-by-step explanation:
The question is answered using the options provided by a similar question from an online source
When tan A = (7/2), we have;
The trigonometric ratio for the tangent of an angle is given as follows;
[tex]tan\angle A = \dfrac{Opposite \ leg \ length}{Adjacent \ Leg \ length} = \dfrac{sin \angle X}{cos\angle X}[/tex]
tan A = (7/2) = 3.5
sin(30°) = 1/2, cos(30°) = (√3/2)
sin(60°) = (√3/2), cos(60°) = (1/2)
sin(45°) = cos(45°) = (√2/2)
tan(30°) = (1/2)/(√3/2) = (√3)/3
tan(45°) = 1
tan(60°) = (√3/2)/(1/2) = √3
The tangent of an angle is increasing as we move from 0° to 90°
Therefore, given that tan A = 7/2 > tan 60° = √3, we have;
∠A > 60°
The option (the options obtained from an online source are; 15°, 39°, 58°, and 74°) which is the closest to the measure of ∠A is 74°.
Answer:
give the guy or girl above me brainliest
Step-by-step explanation:
What is the least common multiple of 8 and 12?
96
24
48
Answer:
B. 24 :)
Step-by-step explanation:
I hope this helps!
I'm so sorry be can you guys help me out here?
what is the value of 6n - 2 when n=3?
a.16
b.12
c. 6
d.7
Answer:
Step-by-step explanation:
value of 6n-2 when n=3 is 6(3)-2 = 18-2 = 16
1. Which of the following is true about the expression shown below? *
Capitols Image
A. The expression is a degree three binomial.
B. The expression is a degree two trinomial.
C. The expression is not a polynomial.
D. The expression is a polynomial written in standard form.
Select all the correct measurement conversions.
A. 8 pints = 16 fluid ounces
B. 5 feet = 60 inches
C. 2 tons = 4,000 pounds
D. 5 meters = 5,000 centimeters
E. 2 days = 2,880 minutes
1.08 CREATE TRIGONOMETRIC MODELS
A cosine function has a period of 4, a maximum value of 20, and a minimum value of 0. The function is not a reflection of its parent function over the x-axis.
Which function could be the function described?
Answer:
○ [tex]\displaystyle f(x) = 10cos\:\frac{\pi}{2}x + 10[/tex]
Step-by-step explanation:
[tex]\displaystyle \boxed{f(x) = 10sin\:(\frac{\pi}{2}x + \frac{\pi}{2}) + 10} \\ \\ y = Asin(Bx - C) + D \\ \\ Vertical\:Shift \hookrightarrow D \\ Horisontal\:[Phase]\:Shift \hookrightarrow \frac{C}{B} \\ Wavelength\:[Period] \hookrightarrow \frac{2}{B}\pi \\ Amplitude \hookrightarrow |A| \\ \\ Vertical\:Shift \hookrightarrow 10 \\ Horisontal\:[Phase]\:Shift \hookrightarrow \frac{C}{B} \hookrightarrow \boxed{-1} \hookrightarrow \frac{-\frac{\pi}{2}}{\frac{\pi}{2}} \\ Wavelength\:[Period] \hookrightarrow \frac{2}{B}\pi \hookrightarrow \boxed{4} \hookrightarrow \frac{2}{\frac{\pi}{2}}\pi \\ Amplitude \hookrightarrow 10[/tex]
OR
[tex]\displaystyle y = Acos(Bx - C) + D \\ \\ Vertical\:Shift \hookrightarrow D \\ Horisontal\:[Phase]\:Shift \hookrightarrow \frac{C}{B} \\ Wavelength\:[Period] \hookrightarrow \frac{2}{B}\pi \\ Amplitude \hookrightarrow |A| \\ \\ Vertical\:Shift \hookrightarrow 10 \\ Horisontal\:[Phase]\:Shift \hookrightarrow 0 \\ Wavelength\:[Period] \hookrightarrow \frac{2}{B}\pi \hookrightarrow \boxed{4} \hookrightarrow \frac{2}{\frac{\pi}{2}}\pi \\ Amplitude \hookrightarrow 10[/tex]
The cosine graph in the photograph on the right is the OPPOCITE of the cosine graph in the photograph on the left, and the reason for this is because of the negative inserted in front of the amplitude value. Whenever you insert a negative in front of the amplitude value of any trigonometric equation, the whole graph reflects over the midline. Keep this in mind moving forward. Now, with all that being said, no matter how far the graph shifts vertically, the midline will ALWAYS follow.
**Moreover, both graphs have the same maximum and minimum value, but we are looking for the equation that will not reflect over the midline of [tex]\displaystyle y = 10,[/tex]which means we do NOT want a negative in front of the amplitude value, therefore we have this equation:
[tex]\displaystyle f(x) = 10cos\:\frac{\pi}{2}x + 10[/tex]
If you are having trouble figuring out which graph is which, just remember that the parent function of [tex]\displaystyle y = cos\:x[/tex]never touches the origin unless it shifts one unit south or gets reflected from somewhere. In this case, the photograph on the left touches the origin because of a reflection [negative symbol], therefore the photograph on the right matches the equation selected.
I am delighted to assist you at any time.
The correct function is,
⇒ y = 10 cos (π/2x) + 10
What is Function?A relation between a set of inputs having one output each is called a function.
Given that;
A cosine function has a period of 4.
Since, The period is 4.
Hence, The relationship between period and b (the coefficient of the independent variable of the cosine function) is, (period) =(2π/b).
Hence, We get;
⇒ 4b = 2π
⇒ b = 2π/4
⇒ b = π/2
So, Now our equation y = a cos (bx) + c becomes as;
⇒ y = 10 cos (π/2x) + 10
Thus, The horizontal center line of this cosine curve is y = 10. The maximum value of the curve is 20, which is 10 + 10, and the minimum value is 0, which is 10 - 10.
Learn more about the function visit:
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On a number line, A is at -8 and B is at 2. What is the coordinate of C, which is 3/5 of the way from A to B?
Answer:
C is at -2
Step-by-step explanation:
distance from A to B is 10
10 × 3/5 = 6
add 6 to -8 to get -2
Naomi used a rectangle, a square, and a right triangle to form the following figure.
What is the area of the shaded region of the figure in
eters?
A-120 cm2
B-102 cm2
C-18 cm2
D-9 cm2
Answer:
102 cm2
Step-by-step explanation:
First you want to find the area of the entire rectangle by multiplying the 2 sides.
20cm x 6cm = 120
Then you want to find the area of the other two shapes (in this case the square and triangle). Also use the other sides to find the lengths of the triangle.
Square = 3 x 3 = 9
triangle = 6 x 3 = 18 / 2 = 9
So then all you have to do is subtract the squares and triangles area from the total rectangle.
120 - (9 + 9)
120 - 18
102 cm2
Hope this helps! Feel free to message me for anymore help!
find the value of x.
Answer:
x=110°
Step-by-step explanation:
Sum of angles in a quadrilateral = 360°
360° - 128° - 40° - 82° = 110°
Answer:
x = 110
Step-by-step explanation
The sum of the interior angles of a quadrilateral = 360°
Sum the given angles and equate to 360
82 + 40 + 128 + x = 360
250 + x = 360 ( subtract 250 from both sides )
x = 110
What is the area of the figure below? (A= 1/2.(b1+b2)) explain how u find the asnwer please ❤️
Answer:
Area of a trapezoid:
A=h(a+b)/2
A=2xy(4x^2y+7x^2y)/2
A=2xy(11x^2y)/2
A=22x^3y^2/2
A=11x^3y^2
So, the correct answer is the third option: A=11x^3y^2
Let me know if this helps!
What is the equivalent fraction for 2
4
If a polynomial is divided by a binomial and the remainder is zero, what does that tell you about the relationship between the binomial and the polynomial?
Answer:
Step-by-step explanation:
Binomial is a factor of the polynomial.
this is really important, if ur not positive dont answer plz...
Answer:
what does this mean
Step-by-step explanation:
Help ME WILL GIVE BRAINLIEST TO FIRST ANSWER
find the slope given the points (2,-7)and(-1,6)
Answer:
13/-3
Step-by-step explanation:
Can someone answer this
2/3 of 21=? who wants to answer
Answer:
14
Step-by-step explanation:
Convert 21 to a fraction: 21/1
2x21= 42
3x1= 3
42/3= 14
3/3= 1
14/1 --> simplify to 14