Answer: b. Simon should chose option a. The mathematical expectation of this option is 6.25 and is the greater mathematical expectation of the two options.
Statement B. Simon should choose Option A. The mathematical expectation of this option is 6.25 and is the greater mathematical expectation of the two options is correct.
What is probability?It is defined as the ratio of the number of favourable outcomes to the total number of outcomes, in other words, the probability is the number that shows the happening of the event.
The probability that the sum of the rolls is a prime number:
P(sum is prime) = 15/36 =0.416
Expected number of points = 0.416×15 =6.25
Probability that f the sum of the rolls is a multiple of 3,
P(sum of rolls is multiple of 3) = 12/36 = 0.33
Expected number of points = 0.33×12 = 3.96
Thus, statement B. Simon should choose Option A. The mathematical expectation of this option is 6.25 and is the greater mathematical expectation of the two options is correct.
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19.3.5 Quiz: Frequency Tables
Question 2 of 5
Nurse Jackson examines immunization records for this past winter at the
school where she works.
Got flu Didn't get flu Total
Vaccinated
25
150
175
Not vaccinated 60
65
125
Total
85
215
300
How many students were not vaccinated and did not get the flu?
A. 150
B. 60
C. 65
D. 125
Answer:
The answer is C. 65
Step-by-step explanation:
You can really just do this visually ngl
The ratio of dogs to cats in the neighborhood was 3 to 7. If a total of 210 dogs and cats were in the neighborhood, how many cats were there? Complete the statement by providing the correct response in number form.
Answer:
147 cats
Step-by-step explanation
There are 3 dogs/ 7 cats
3x + 7x = 210
10x = 210
210 ÷ 10 = 21
Therefore,
x = 21.
dogs would be 3x (3 x 21) = 63
cats would be 7x (7 x 21) = 147
Please hurry I need this soon and no links
Solve by grouping 8x^3+3+6x^2+4x
Answer:
Step-by-step explanation:
Answer:
it cant be simplified but this is what i got
Step-by-step explanation:
sorry if its incorrect :')))))))
a) how many 15-year old students took part in the survey?
By observing the frequency polygon,
the number of 15 year old students who took part in the survey are 300.
What is frequency polygon?A frequency polygon is almost identical to a histogram, which is used to compare sets of data or to display a cumulative frequency distribution. It uses a line graph to represent quantitative data.
To calculate the number of students, we add all frequency points corresponding to the time intervals.
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Brainliest and 15 points if you get this problem right! NO LINKS= No BRAINLIEST
Answer:
1. Movie B
2. Movie C
3. 40 years old
Step-by-step explanation:
Answer:
Part 1 = Movie B.
Step-by-step explanation:
Part 2. Movie C
Part 3. 40
To solve for n, I should do what to both sides of the equation? n - 8 = 13
A. Add 8 to both sides of the equation.
B. Subtract 8 from both sides of the equation.
C. Subtract 13 from both sides of the equation.
D. Add 13 to both sides of the equation.
Mary bought a purse which was marked at 25% off. The original price of the purse was
$45.00. If the sales tax is 8% and applied after the discount, how much did Mary pay for the purse?
Answer: $36.45
Step-by-step explanation:
45(.25)=11.25
45-11.25=33.75
33.75(.08)=2.70
33.75+2.70=36.45
help plsssss need help will give brainliest
Answer:
[tex]\boxed {\boxed {\sf 22a-14b}}[/tex]
Step-by-step explanation:
We are given this expression:
[tex]17a-10b+5a-4b[/tex]
We are asked to simplify. For this expression, we will need to combine like terms. Like terms are terms with the same variable. In this expression, there are 2 variables: a and b. Use the commutative property of addition to move the like terms together.
[tex](17a+5a)+(-10b+ -4b)[/tex]
Add inside the parentheses.
[tex]22a+ (-10b+-4b)[/tex]
A positive next to a negative, like +- becomes a negative.
[tex]22a+ (-10b-4b)[/tex]
[tex]22a+ -14b \\22a-14b[/tex]
The expression 17a-10b+5a-4b is equal to 22a-14b.
23% more than the number last week. This week, there were 7134 new cases. How many new cases were there last week?
Answer:
Number of cases sold last week= 31,017 cases
Step-by-step explanation:
Giving the following information:
Increase in sales= 23%
This week, there were 7,134 new cases.
If 7,134 cases represent the 23%, then we need to use the rule of three:
Number of cases sold last week= (7,134*100)/23
Number of cases sold last week= 31,017 cases
Need help ASAP please anyone
Answer:
Step-by-step explanation:
$78 is what % of $120?
Answer:
Step-by-step explanation:
PLEASE HELP THIS IS URGENT>>>>NO LINKS!!
Answer:
i believe that the answer is c
Need help with math!!!!!!
Answer:
3
Step-by-step explanation:
the third option
3-108. Write an equation and find the answer for each of the following problems. Give answers in decimal form. Homework Help a. What is the product of three tenths and four hundredths?
PLEASE HELP ME!! I NEED HELP FAST!
Question 3 (10 points) (08.03/08.05 MC) A pair of equations is shown below:
y = 7x - 8
y = 5x – 2
Part A: Explain how you will solve the pair of equations by substitution or elimination. Show all the steps and write the solution. (5 points)
Part B: If the two equations are graphed, at what point will the lines representing the two equations intersect? Explain your answer. (5 points)
Answer:
part A) rearrange the equations to form simultaneous equations:
y-7x=8
y-5x=-2
now eliminate the y values by minusing the two equations:
(y-7x=8)-(y-5x=-2)
to get:
-2x=-6
x=3
now substitute x into one of the equations to get y:
y=5x-2
y=15-2
y=13
[tex]x = 3 \\ y = 13[/tex]
part B) the lines will intercept at (3, 13)
Step-by-step explanation:
hope this helps!
For any number n>1, is
|(5 – 3i)^n|
A. greater than 1?
B. less than 1?
C. equal to 1?
Answer:
A.greater than 1
Step-by-step explanation:
1. take away all the symbols
2. 5-3
3.5-3=2
4. is 2 greater than 1
5. yes
6. answer is A.
Consider right triangle △ABC below.
Which expressions are equivalent to sin(∠B)?
Choose two answers:
A: tan(∠A)
B: length of side adjacent to ∠A/length of hypotenuse
C: sin(∠A)
D: AC/AB
Answer:
Khan academy
Step-by-step explanation:
The expressions that are equivalent to sin(∠B) are option (B) length of side adjacent to ∠A/length of hypotenuse and option (D) AC/AB are the correct answers.
What is trigonometry?Trigonometry is mainly concerned with specific functions of angles and their application to calculations. Trigonometry deals with the study of the relationship between the sides of a right-angled triangle and its angles.
For the given situation,
From the diagram,
The right angle is at ∠C, so opposite to that side is hypotenuse.
If we consider angle at ∠B, then the side opposite to that side is opposite side and the other side is adjacent side.
Thus, Sin∠B = [tex]\frac{oppposite}{Hypotenuse}[/tex]
⇒ Sin∠B = [tex]\frac{AC}{AB}[/tex]
From the options, now check which options is equivalent to Sin∠B,
Option (A): tan(∠A)
Now, consider the angle at ∠A,
so, [tex]tan(\angle A)=\frac{oppposite }{adjacent}[/tex]
⇒ [tex]tan(\angle A) =\frac{CB}{AC}[/tex]
Option A is not equivalent to sin(∠B).
Option (B): length of side adjacent to ∠A/length of hypotenuse
⇒ [tex]\frac{AC}{AB}[/tex]
Option B is equivalent to sin(∠B).
Option C: sin(∠A)
[tex]Sin(\angle A)=\frac{CB}{AB}[/tex]
Option C is not equivalent to sin(∠B).
Option D: AC/AB
Option D is equivalent to sin(∠B).
Hence we can conclude that the expressions that are equivalent to sin(∠B) are option (B) length of side adjacent to ∠A/length of hypotenuse and option (D) AC/AB are the correct answers.
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Drag the correct number of pieces to show how to find the area of the shaded figure in two different ways. Pieces can be rotated to fit.
Answer:
Step-by-step explanation:
As you can see from the attached picture below, the only figure that is equal to 5 whole units would be the final triangle. That is because it has 2 whole units in the middle, two half units in the top which equal 1 whole unit. And 2 units in each side corner which when combined would equal 2 whole units making it a total of 5. The rest of the shapes either hold more than 5 or less than 5 units. In the picture below, the top 3 shapes hold more than 5 units while the bottom two triangles hold less than 5.
hi guys this one is one whole question it just couldent fit please help
Answer:
Pentagon and rhombus
Step-by-step explanation:
Figure 1 is dilated to get Figure 2.
What is the scale factor?
Answer:
2/3
Step-by-step explanation:
6/9 in simplest form is 2/3. That's the scale factor :)
Help!! Il give thanks
Answer:80
Step-by-step explanation:
All angles in a triangle add up to 180.
70+30= 100
180-100= 80
There you have it
10x 3 + 5y 2 + 2xy – 4y 2 + 4xy – x 3
simplify
Answer:
6 x y + 27 x + 2 y
Step-by-step explanation:
Answer:
9x^3 + y^2 + 6xy
Step-by-step explanation:
10x^3 + 5y^2 + 2xy - 4y^2 + 4xy - x^3
9x^3 + y^2 + 6xy
A scale diagram of an Amoeba (a single celled organism) is 5cm wide, representing the real-life Amoeba's width of 0.1mm. Determine the scale factor of the scale diagram and select the best answer choice below. (note: there are 10 millimeters in 1 cm)
A dice is a perfect cube. The length of the side of the dice is 1 cm. The density of a dice is 2 g/cm.
What is the volume of the dice?
Answer: I handdbbdhddhdndnndnddnndjdjdjdjdjdjdjdjdjdjdjdjdjdjdjd
Step-by-step explanation:
Which measurement is closest to the area of the circle in square feet?
Answer:
314
Step-by-step explanation:
search "what is the area of a circle if the radius is 10"
If x - y=5, x + y = 59, and x > y, what is the value of xy?
Answer:
864
Step-by-step explanation:
∵X-Y=5 and.
∵X+Y=59 add the two equations
∴2X=64
∴X=32 (substitute in any equation)
∴32 - Y=5
∴Y = 27
∴ So . X×Y=32 × 27=864
Answer:
x=32, y=27
Step-by-step explanation:
32-27=5
32+27=59
32>27
32x27=864
Is this a function?
A) No
B) yes
Answer:a
Step-by-step explanation:
no
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Can someone help me ASAP
How many different 2-digit numbers can be formed from the digits 4, 6, and 8?
Answer:
6 answers
Step-by-step explanation:
46,48,68,64,86,84
