Step-by-step explanation:
To randomly pick the 10 people needed in the sample, it can be done this way
1. Define the population: in this case, the total population is 280 and expressed as N and since we are interested in everyone in the neighborhood with no exclusion, our sampling frame is thus 280 people.
2. Choose your sample size: As given in the question, our sample size is to randomly pick 10 people expressed as n.
3. List your population and then assign numbers to each unit in the population: Getting the list of all 280 people in the population and then assigning numbers from 1 to N - in this case 1 - 280.
4. Then find random numbers using the random number table to help select your 10 people sample making them a representative of the population in residence.
Can someone help me?
Select the elements in A . A = { x : 1 < x < 50 } ξ = { x : x is a cube number } A 64 B 50 C 1 D 8 E 49 F 27 ?
Hey!!!!
The right answer is 27.
It is cube of 3.
Hope it will help you...
Good luck on your assignment...-Pragya```
Diagram 3 circles Help give u brainly
Answer:
20%
Step-by-step explanation:
2/10 cm are blue.
In the equation -2 - 6b = 32, the negative coefficient is ___________________.
Answer:-2
Step-by-step explanation:
It’s not -6b because that is showing that it’s getting subtracted
Hope I helped
Including Jose, there are eight people in his family.
If order matters, how many ways can he arrange his family members into a row of five seats if Jose must sit in the first seat?
O 35
O 840
O 1,680
0 2,620
Answer:
840
Step-by-step explanation:
Since the order matters, we use the permutations formula to solve this question.
Permutations formula:
The number of possible permutations of x elements from a set of n elements is given by the following formula:
[tex]P_{(n,x)} = \frac{n!}{(n-x)!}[/tex]
In this question:
The first seat is Jose's.
The remaining four are organized among the other 7 members. So
[tex]P_{(7,4)} = \frac{7!}{(7-4)!} = 840[/tex]
So the correct answer is:
840
Answer:
The answer is B on Edge 2020
Step-by-step explanation:
I did the Exam
Which equation has a constant of proportionality equal to 1
Answer:
Step-by-step explanation:
Is in
What is 4+5 devices by two
The equation can be written as:
4 + 5 / 2
Remember to follow PEMDAS.
4 + 5 / 2
4 + 2.5
6.5
Best of Luck!
Answer:
If you mean whats 4+5/2 the answer is 6.5 because PEMDAS says to Divide first . So 4+(5/2). 5/2 is 2.5. so 4+(2.5) which equals 6.5
How much does the granite top on the island weigh, in pounds?
1 lb= 454 grams
Based on the information marked in the diagram mnp and qrs must be congruent
Answer: True
Step-by-step explanation:
In triangles MNP and QRS:
NP=RS (hypotenuses);
∠P=∠S (acute angles).
Then, triangles MNP and PRS are congruent by HA theorem.
which makes the answer true
Answer:
True
Step-by-step explanation:
I just took the test, A-p-e-x
A cylinder is 20 inches long and has a diameter of 10 inches. What is the approximate volume of the cylinder?
Answer:
V=π(d/2)^2·h
=π·(10/2)^2 · 20
≈1570.79633in³
this is the correct answer!!!
The approximate volume of the cylinder is 1570.796 inches³.
What is Volume?Volume of a three dimensional shape is the space occupied by the shape.
A cylinder is a geometrical shape has two circular bases which are parallel and they are connected with a curved surface.
Given that,
Height of the cylinder = 20 inches
Diameter of the base = 10 inches
Radius = Diameter / 2 = 10/2 = 5 inches
Volume of the cylinder = π r² h, where r is the radius and h is the height.
Volume = π (5)² (20)
= 500π
= 1570.796 inches³
Hence the volume is approximately 1570.796 inches³.
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what’s the answer to this !!
The volume of a sphere is 904.32 cubic millimeters. What is its radius?
Hello!
Answer:[tex]\boxed{ \bf The~radius~of~the~sphere~is~6~mm.}[/tex]
Explanation:We know that:
V = [tex]\frac{4}{3}[/tex]πr³
904.32 = [tex]\frac{4}{3}[/tex]πr³
To figure out the radius, we have to undo the above. We can undo the fraction by multiplying by it's reciprocal:
[tex]\frac{3}{4}[/tex] × [tex]\frac{904.32}{1}[/tex] = [tex]\frac{4}{3}[/tex]πr³ × [tex]\frac{3}{4}[/tex]
678.24 = πr³
Next, we're going to divide both sides by pi:
[tex]\frac{678.24}{\pi } = \frac{\pi r^{2} }{\pi }[/tex]
215.90 = r³
To undo the, we must find the cube root of 215.90.
r = 6
Answer:
[tex]radius = 6mm[/tex]
Step-by-step explanation:
Volume of a sphere.
Use this formula
[tex]v = \frac{4}{3} \pi {r}^{3} [/tex]
Now solve for r
[tex]r = (3 \frac{v}{4\pi} ) ^{ \frac{1}{3} } \\ = (3 \times \frac{904.32}{4 \times \pi} ) ^{ \frac{1}{3} } \\ ≈
5.99899mm
[/tex]
plz Help your fav. Marshmello i wasn' t,,,,, xx born yesterday.
Answer:
[tex] \boxed{D. \: x = 5} [/tex]
Step-by-step explanation:
[tex] = > 1 - 2x - 1 = - 10 \\ \\ = > 1 - 1 - 2x = - 10 \\ \\ = > 0 - 2x = - 10 \\ \\ = > \cancel{ - }2x = \cancel{ - }10 \\ \\ = > 2x = 10 \\ \\ = > x = \frac{10}{2} \\ \\ = > x = 5[/tex]
Answer:
the answer is attached to the picture
A circular swimming pool has a radius of 15ft. There is a path all the way around that pool that is three feet wide. What is the circumference of the outer edge of the path around the pool? Use 3.14 for pie
Answer:
94.2 ft.
Step-by-step explanation:
The equation to find circumference is 2 times pie times radius. We subsitute pie for 3.14. Now the equation is 2(3.14)r. The radius is 15. When we subsitute 15 for r the answer will be 2(3.14)15. Another way to write it is 2 times 3.14 times 15. The answer would be 94.2
Which of the following shows the division problem below in synthetic division form? 4x^2-13x+8 / x+5
Answer:
Dividing 4x^2 - 13x + 8 by x + 5 or x - (-5), in synthetic division form:
-5) 4 | -13 | 8
↓ 4 x (-5) (-5) x (-33)
4 -33 173
=> Quotient is 4x - 33 and remainder is 173
=> (4x^2 - 13x + 8)/(x + 5) = (4x - 33) + 173/(x + 5)
Hope this helps!
:)
Answer:
-5/4 -13 8
Step-by-step explanation:
Please answer this correctly without making mistakes I want helping hand people to answer this
Answer:
k = 6
Step-by-step explanation:
Since the figures are similar, we can use ratios to solve
4 28
----- = -------
k 42
Using cross products
4 * 42 = 28k
Divide each side by 28
4*42/28 = 28k/28
6 = k
Answer: k = 6mm
Step-by-step explanation:
The shapes are similar, which means that each side on the triangle is proportionally similar to its corresponding side on the other triangle.
We can use proportions to solve for k:
[tex]\frac{4}{28} = \frac{k}{42}[/tex]
4 and k are proportionally similar and 28 and 42 are proportionally similar.
You can then cross-multiply to get this:
28k = 168
k = 6
The missing side is 6 mm long.
QUICK!!
Convert r = 6cscθ to rectangular form.
Answer:
x2+y2−6y=0
Step-by-step explanation:
Isi makes sandwiches to sell at a football game.
The graph shows her costs and income from making and selling the sandwiches.
Select the three statements that are true, based on the graph.
Answer: 1)The more sandwiches you sell the more you income goes up. 2)If you sell 24 sandwiches the cost will be the same as your income. 3) If you sell 0 sandwiches you will get zero income.
Step-by-step explanation:
13)
A piece of pipe that is 8 feet long is cut into
ft pieces. How many pieces can be cut from the pipe?
Answer:
22
Step-by-step explanation:
did the test with that question
Answer:
22
Step-by-step explanation:
The circumference of a circle is 20 cm. What is the approximate radius of the circle?
Answer:
[tex]3.18cm[/tex]
hope this helps
brainliest appreciated
good luck! have a nice day!
( NEED HELP ASAP)
If parallelogram ABCD was reflected over the y-axis, reflected over the x-axis, and rotated 180°, where would point A' lie?
[Hint: Place your coordinates in the blank with no parentheses and a space after the comma in the form: x, y]
Parallelogram ABCD is shown.
A is at negative 4, 1.
B is at negative 3, 2.
C is at 0, 2.
D is at negative 1, 1.
Answer:
(Fill in the blank)
Answer:
A' is at (-4, 1)
Step-by-step explanation:
Reflection over both axes is equivalent to rotation by 180°. Then rotation by 180° returns the point to its original location. The original location of point A is (-4, 1), so the location of its image is A'(-4, 1).
What is the value of x in the equation x - y = 30, when y = 15?
Step-by-step explanation:
x-y=30
then y should be 15
x-15=30
x=30+15
x=45
Use algebraic methods to find as many intersection points of the following curves as possible. Use graphical methods to identify the remaining intersection points.
r = 5 sinθ and r = 5 cosθ
Answer:
Step-by-step explanation:
r =5sin i
r=5 cos i
divide
tan i=1=tan (π/4),tan(π+π/4)
or tan i=tan (π/4),tan(5π/4)
or tan i=tan (2n π+π/4),tan (2nπ+5π/4)
or tan i=tan ((8n+1)π/4),tan((8n+5)π/4)
i=(8n+1)π/4,(8n+5)π/4
where n is an integer.
so we get infinite points of intersection.
Select the correct answer.
If `u=(1+isqrt(3))' and `v=(1+2isqrt(3)) , what is uv?
A.
*7+3isqrt(3)
B.
-5+3isqrt(3)
C.
5+2isqrt(3)
D.
*7+2isqrt(3)
Answer:
B
Step-by-step explanation:
(1+isqrt(3))(1+2isqrt(3))=1+2i√3+i√3+i√3*2i√3=3i√3-5=-5+3i√3
Jessica has 4/8 of a bottle of Robitussin syrup on hand. The pharmacist instructs Jessica to reduce the syrup by 1/2 so he can prepare a patient’s prescription. How much Robitussin does the pharmacist need to prepare the prescription?
Answer:
2/4 i think but im not sure
An insurance policy charges a regular risk premium, , at Years 0,1,2,3,…,9 from today. The policy pays a claim of 2 (i.e. × ) in 15 Years from today. Calculate the value of (to 2 decimal places), assuming an interest rate of 2% per annum.
Answer:
x = 12.29
Step-by-step explanation:
present value of the claim = x² / (1 + 2%)¹⁵ = 0.743x²
present value of the 10 premiums:
x + x/1.02 + x/1.02² + x/1.02³ + x/1.02⁴ + x/1.02⁵ + x/1.02⁶ + x/1.02⁷ + x/1.02⁸ + x/1.02⁹ = x + 0.9504x + 0.9612x + 0.9423x + 0.9238x + 0.9057x + 0.888x + 0.8706x + 0.8535x + 0.8368x = 9.1323x
0.743x² = 9.1323x
x² / x = 9.1323 / 0.743
x = 12.29
Answer
x = 12.29
Step-by-step explanation:
Given that the policy claims x² in 15 years, at 2% = 0.02, the present value of the claim is given as:
x²/(1 + 0.02)^15
= x²(1/1.02)^15
= 0.743x²
The present value of the 10 premiums:
x + x/1.02 + x/1.02² + x/1.02^3 + x/1.02^4 + x/1.02^5 + x/1.02^6 + x/1.02^7 + x/1.02^8 + x/1.02^9
= x + 0.9504x + 0.9612x + 0.9423x + 0.9238x + 0.9057x + 0.888x + 0.8706x + 0.8535x + 0.8368x
= 9.1323x
Now,
0.743x² = 9.1323x
x²/x = 9.1323/0.743
x = 12.29
This is what we are looking for.
After finishing college, Daniel had interviews with SeaWorld and the Central Park Zoo. The probability of receiving an offer from SeaWorld is 35%. The probability of receiving an offer from the Central Park Zoo is 48%. The probability of Daniel getting an offer from both SeaWorld and the Central Park Zoo is 15%.
Determine the probability of receiving an offer from either SeaWord or Central Park Zoo but not both. ____________
Answer:
[tex]68\%[/tex]
Step-by-step explanation:
Let A be the event that Daniel receives call from SeaWorld.
Probability of event A, P(A) = [tex]35\%[/tex]
Let B be the event that Daniel receives call from Central Park Zoo.
Probability of event B, P(B) = [tex]48\%[/tex]
Probability that Daniel receives calls from both SeaWorld and Central Park Zoo:
[tex]P(A \cap B) = 15\%[/tex]
We know that formula:
Probability that Daniel receives call from either SeaWorld or Central Park Zoo but not both:
[tex]P(A \cup B) = P(A) + P(B) - P(A \cap B)\\\Rightarrow P(A \cup B) = 35\% + 48\% - 15\%\\\Rightarrow P(A \cup B) = 68\%[/tex]
Hence, required probability is [tex]68\%[/tex].
Answer:
Step-by-step explanation:
The diameter of this beach ball is 12 inches.
A beach ball.
Apply the formula for the volume of a sphere to determine how much air it can hold. Use the calculator to multiply by π. Round to the nearest hundredth.
Sphere V = 4
3
πr3
How much air can the beach ball hold?
Answer:
288π or 904.78
Step-by-step explanation:
We know that the diameter of this beach ball is 12 inches and we want to determine how much air it can hold using the formula for the volume of a sphere which is [tex]\frac{4}{3}[/tex] × π × r³ where 'r' is the radius. In the question we are given the diameter not the radius but we can half the diameter to find the radius so 12 ÷ 2 = 6. The radius of the beach ball is 6 inches so let's work out how much air it can hold.
Volume = [tex]\frac{4}{3}[/tex] × π × r³
→ Let's substitute in the values
Volume = [tex]\frac{4}{3}[/tex] × π × 6³
→ Simplify
Volume = [tex]\frac{4}{3}[/tex] × π × 216
→ Simplify further
Volume = 288π or 904.78
The amount of air can the sphere shape beach ball hold is 208π or 904.78 inches.
What is sphere?
The "set of all points in 3 dimensional space is lying the same distance from the given points or center" is called sphere.
According to the question,
Diameter of sphere shape beach ball is 12inches
Radius of sphere shape beach ball is 12/2 = 6inches
Volume of sphere = [tex]\frac{4}{3}[/tex] × π × r³
= [tex]\frac{4}{3}[/tex] × [tex]\frac{22}{7}[/tex] × (6)³
= 904.78inches
Hence, the amount of air can the sphere shape beach ball hold is 208π or 904.78 inches.
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When playing roulette at the Venetian casino in Las Vegas, a gambler is trying to decide whether to bet $5 on the number 27 or to bet $5 that the outcome is any one of these five possibilities: 0, 00, 1, 2, 3. From Example 6, we know that the expected value of the $5 bet for a single number is -26. For the $5 bet that the outcome is 0, 00, 1, 2, or 3, there is a probability of 5>38 of making a net profit of $30 and a 33>38 probability of losing $5.
a. Find the expected value for the $5 bet that the outcome is 00, 0, or 1.
b. Which bet is better: a $5 bet on the number 25 or a $5 bet hat the outcome is any one of the numbers 00, 0, or 1? Why?
Answer:
Step-by-step explanation:
Given that:
To bet $5 that the outcome is any one of these five possibilities: 0, 00, 1, 2, 3.
Let Y represent the Amount of net profit
Then, Y= {-5, 30}
The probability distribution of Y is:
Y -5 30
P(Y=y) [tex]\dfrac{33}{38}[/tex] [tex]\dfrac{5}{38}[/tex]
a) The expected value of X is given by:
[tex]E[Y] =\sum y P(Y=y)= 30*\dfrac{5}{38}-5*\dfrac{33}{38}[/tex]
[tex]=-0.39[/tex]
[tex]= -39 \ cents[/tex]
b)
On a bet of $5 on the number 25 we are expected to loose 24 cents.
While on a $5 bet that the outcome is any one of the numbers 0,00, or 1 we are expected to loose 39 cents.
Hence, $5 bet on the number 27 is better. Because the expected loss is less in this bet
my entry test is coming soon i prepard my exams maths english
Answer:
good luck !!
Step-by-step explanation:
Answer:
Good luck
Step-by-step explanation:
Solve for m.
774 = m − 15
Answer:
[tex]m = 789[/tex]
Step-by-step explanation:
[tex]774 = m - 15 \\ 774 + 15 = m \\ 789 = m[/tex]
hope this helps
brainliest appreciated
good luck! have a nice day!
So the right answer is 789
look at the attached picture
Hope it will help you
Good luck on your assignment