the answer is supposed to be 132 at the most of a
for b it is 165
Answer:
a=132
b=165
Step-by-step explanation:
,
A study done by researchers at a university concluded that % of all student athletes in this country have been subjected to some form of hazing. The study is based on responses from athletes. What are the margin of error and 95% confidence interval for the study?
The missing digits is highlighted in bold form
A study done by researchers at a university concluded that 70% of all student-athletes in this country have been subjected to some form of hazing. The study is based on responses from 1800 athletes. What are the margin of error and 95% confidence interval for the study?
Answer:
Step-by-step explanation:
Given that:
The sample proportion [tex]\hat p = 0.70[/tex]
The sample size n = 1800
At 95% confidence interval level:
The level of significance = 1 - 0.95 = 0.05
Critical value: [tex]Z_{0.05/2} = Z_{0.025} = 1.96[/tex]
Thus, the Margin of Error E = [tex]Z_{\alpha/2} \times \sqrt{\dfrac{\hat p ( 1- \hat p)}{n}}[/tex]
[tex]= 1.96 \times \sqrt{\dfrac{ 0.70 ( 1-0.70)}{1800}}[/tex]
[tex]= 1.96 \times \sqrt{\dfrac{ 0.70 ( 0.30)}{1800}}[/tex]
[tex]= 1.96 \times \sqrt{\dfrac{0.21}{1800}}[/tex]
[tex]= 1.96 \times \sqrt{1.16666667\times 10^{-4}}[/tex]
the Margin of Error E = 0.021
At 95% C.I for the population proportion will be:
[tex]= \hat p \pm Z_{\alpha/2} \sqrt{\dfrac{\hat p(1- \hat p)}{n}}[/tex]
= 0.70 ± 0.021
= (0.70 - 0.021, 0.70 + 0.021)
= 0.679, 0.721)
What is the volume of the geometric solid produced by the triangle below
when it is rotated 360 degrees about the vertical axis YZ? *
Answer:
The volume of the geometric solid produced is 391 cubic cm ⇒ A
Step-by-step explanation:
When a right triangle is rotated about its vertical leg 360°, then it formed a cone its radius is the horizontal leg of the triangle and its height is the vertical lege of the triangle.
The rule of the volume of the cone is V = [tex]\frac{1}{3}[/tex] π r² h, where
r is the radius of its baseh is the length of its height∵ Triangle XYZ is rotated 360° about the vertical side YZ
∴ It formed a cone with a radius = XZ and a height = YZ
∵ [tex]\frac{YZ}{XZ}=tan(60)[/tex]
∵ YX = 6√3
∴ [tex]\frac{6\sqrt{3}}{XZ}=tan(60)[/tex]
∵ tan(60) = √3
∴ [tex]\frac{6\sqrt{3}}{XZ}[/tex] = √3
→ By using cross multiplication
∴ 6√3 = XZ(√3)
→ Divide both sides by √3
∴ 6 = XZ
∵ XZ = r and YZ = h
∴ r = 6 and h = 6√3
→ By using the rule of the cone above
∵ V = [tex]\frac{1}{3}[/tex] (π) (6)² (6√3)
∴ V ≅ 391 cm³
∴ The volume of the geometric solid produced is 391 cubic cm
hey there, can you plz help me with my math assignment, plzzzzz
Answer:
i dont see it-
Step-by-step explanation:
Step-by-step explanation:
ok but what's the question
The value of y varies directly with x. If x = 4, then y = 20.
What is the value of x when y = 60?
5
7
12
44
Answer: 12
Step-by-step explanation:
Since value of y varies directly with x, we introduce a constant, k which will give:
y = kx
If x = 4, then y = 20 we then calculate the value of k.
y = kx
20 = 4k
k = 20/4
k = 5
We then find the value of x when y = 60. This will be:
y = kx
60 = 5x
x = 60/5
x = 12
The value of x is 12 when y is 60
Simplify by making mathmatical expression
9 Subtracted from 3 times the sum of 5 and 6.
Answer:
81
Step-by-step explanation:
5 times 6 is 30 times 3 is 90 - 9 is 81
Answer: either 24 or -24
explain three situations under which the President of India can proclaim emergency
Answer:
The President can exercise his emergency powers in three types of emergencies: national emergency, state emergency, and financial emergency.
National Emergency is imposed by the President on request by the Prime Minister’s cabinet of ministers. Article 352 of the Indian Constitution states that an emergency can be called in the event of imminent danger to the national security due to armed rebellion, war or external aggression.
State Emergency is often referred to as President’s Rule. State emergency is declared under Article 356, in the event when the state government collapses and the constitutional machinery fails in a particular state. It can be imposed for a period of six months and can last only for three years with parliamentary consent required every six months. The Governor, the President’s representative in the state, governs the state under emergency in the name of the President.
Financial Emergency is imposed by the President if he reckons financial stability of the country is in danger. Article 360 empowers the President to declare this emergency on the condition that it would be approved by the Parliament within two months of its enforcement.
jarak kota a ke kota b adalah 130 km Amir berangkat dari a pukul 8.15 menuju b dengan kecepatan rata-rata 50 km per jam Amir tiba di kota b pada pukul
Answer:
10:51
Step-by-step explanation:
Given that :
Distance from A to B = 130km
Departure time = 8 : 15
Average speed = 50 km/hr
Recall :
Speed = distance / time
Time = distance / speed
Time = (130 km) ÷ (50km/hr)
Time = 130 / 50
Time = 2.6 hours = 2 hours + (0.6 * 60) = 2 hours 36 minutes
Arrival time = (8:15) + (2 hours 36 minutes) = 10:51
2.) True or False?
When working with a function, substituting a certain value of x into the formula gives only one value of y for that value of x.
Answer:
TRUE
Step-by-step explanation:
In a function, every domain value (x-value) must have exactly one corresponding range value (y-value). This means that in a function, an x-value or input value cannot have two different y-value or output value. Or else, it ceases to be a function.
So, when you substitute a certain value of x into the equation of a function, you can only have one exact value of y for that value of x.
list 5 examples and application where geometric sequences occur in everyday life.justify your answer are geometric sequences
find the midpoint of the line segment JK if j (4,6) and k(0,-4)
Answer:
[tex](2,1)[/tex]
General Formulas and Concepts:
Order of Operations: BPEMDAS
Midpoint Formula: [tex](\frac{x_1+x_2}{2},\frac{y_1+y_2}{2})[/tex]
Step-by-step explanation:
Step 1: Define points
J (4, 6)
K (0, -4)
Step 2: Find midpoint
Substitute: [tex](\frac{4+0}{2},\frac{6-4}{2})[/tex]Add/Subtract: [tex](\frac{4}{2},\frac{2}{2})[/tex]Divide: [tex](2,1)[/tex]Quadrilateral ABCD is graphed on a coordinate plane with the vertices A(-9,-6), B(-4,-6), C(-3,-2), and D(-8,-2). A. Quadrilateral ABCD is translated to the left 2 units and up 6 units. Write the translation in terms of x and y using ordered pair notation. B. Determine the coordinates of the vertices of the image. Be sure to name each of the vertices of the image with the correct notation.
Answer:
translated :
A'(-11,0)
B'(-6,0)
C'(-5,4)
D'(-10,4)
Step-by-step explanation:
What are the partial products for 52x27?
Answer:
(50*20) + (50*7)+(2*20)+(2*7)
Step-by-step explanation:
52 is 50 + 2
27 is 20 + 7
(50*20) + (50*7)+(2*20)+(2*7)
i just need the answers, u dont need to show ur work :)
Answer:
10 units
Step-by-step explanation:
Formula to find the distance between two points [tex](x_1,y_1)[/tex] and [tex](x_2,y_2)[/tex] is,
d = [tex]\sqrt{(y_2-y_1)^2+(x_2-x_1)^2}[/tex]
Distance between two points (0, -7) and (-6, 1) will be,
d = [tex]\sqrt{(0+6)^2+(-7-1)^2}[/tex]
= [tex]\sqrt{36+64}[/tex]
= [tex]\sqrt{100}[/tex]
= 10
Therefore, distance between the given points is 10 units.
What is the solution to this inequality?
14 + x < 26
O A. XS 40
O B. x2 40
O c. xs12
O D. x2 12
Answer:
C
Step-by-step explanation:
14 + x ≤ 26
~Subtract 14 to both sides
x ≤ 12
Best of Luck!
Writing the Equation of a Line in Slope-lh
Given Two Points
Try it
Write the equation of the line that passes through
the points (-1, 2) and (6, 3) in slope-intercept form,
Step 1: Choose (X1Y1).
Answer:
[tex]y=\frac{1}{7}x +\frac{15}{7}[/tex]
Step-by-step explanation:
4 pounds of sugar can make 8 batches of candy corn. How many pounds of sugar are needed if we want to make 12 batches of candy corn?
6
(4=8 so 8+4=12 which means, the answer is 2 because we can´t do 16, which is 8+8. But we can split the 4 in half since 4 is half of 8.)
Pls help me solve 55 x 77 x 247903
Answer:
1049869205
Step-by-step explanation:
55 * 77 = 4235
4235 * 247903 = 247903
Can someone help me with homework
Which diagram shows possible angle measures of a triangle?
Answer:
The 2nd one
Step-by-step explanation:
A triangle has to equal 180 and 115+32+33=180
Answer:
the second one
Step-by-step explanation:
the angles have to add up to 180 in total and that one does
Mary has been offered two jobs. Job A has a starting salary of $36,000 and a raise of $1500 every year. Job B has a starting salary of $29,000 and a raise of $2500 every year. In how many years would Mary's salary be the same at both companies. What would that salary be?
Answer:
6 years. Mary's salary would be 46,500.
Step-by-step explanation:
It's hard for me to explain how I got the answer. But I know the answer is right(I know cause I checked my work like five times).
A popular dance club allows 29 customers to enter per hour. The club has to keep their occupancy below 600 at any time during the day. Currently, the club has 339 customers. If none of the customers leave, how many more hours, x, can the club continue to accept new customers?
Select the number line that includes the largest number of hours the club can continue to accept new customers without exceeding their occupancy.
Answer:
The club can continue to accept customers for 9.66 hours, after which they'll have exceeded 600.
Step-by-step explanation:
339 + 29h = 600
29h = 261
h = 9.66
What is the value of n in the equation { (2n + 4) + 6 = -9 +4(2n+1)?
n =
N= 1
Answer:
n=1
Step-by-step explanation:
its stay same always.
The basketball team scored 89 points in just two- and three-point basket. The number of two-point baskets was 27 more than the number of three-point baskets. How man two-point and three-pointers did the team make?
Answer:
A=85
B=58
Step-by-step explanation:
NO. OF 2 point basket⇒ A
NO. OF 3 point basket⇒B
A+B=89⇒ EQN 1
A=27+B
A-B=27⇒EQN 2
EQN 1 - EQN 2
2B=116
B=58
THEREFORE
A=27+58
A=85
when divided by 8 i am 70 when divided by 7 i am 80
Answer:
your answer is 560 am I correct.
8×70=560 /560 =8
70
7×80=560. / 560 =7
80
Can you plz help me with this question ?
Answer:
AC=PR because a and c are the first and third letters of the first group so you would do the same with the second.
Step-by-step explanation:
Create an equation for each of the following sentences
1) The sum of a number and 12 is 16
helppp
Answer: x+12=16
Step-by-step explanation: hope this helps
are these all right?? PLS HELP IM SO DUMB AHAH.
Answ
yes
Step-by-step explanation:
Answer:??
Step-by-step explanation: How do I use this app??
Find the 66th term in the following arithmetic sequence: -92,-85,-78,-71,.......
9514 1404 393
Answer:
363
Step-by-step explanation:
The n-th term of an arithmetic sequence is given by ...
an = a1 +d(n -1)
Here, the first term (a1) is -92, and the common difference is (-85 -(-92)) = 7. The 66th term is ...
a66 = -92 +7(66 -1) = -92 +455
a66 = 363
Oy I hate this subject I swear just a few more but still giving out brainliest and points!
Answer:
C
Step-by-step explanation:
your y values which produce the range differ between 2 and 10 which means that will be your range. All of the values are real.
The tax rate as a percent, r, charged on an item can be determined using the formula StartFraction c Over p EndFraction minus 1 equals r. – 1 = r, where c is the final cost of the item and p is the price of the item before tax. Louise rewrites the equation to solve for the final cost of the item: c = p(1 + ). What is the final cost of a $40 item after an 8% tax is applied? $
Answer:
43.20
Step-by-step explanation:
Had to take one for the team
Answer:
The answer is 43.20.