Answer: Required 99% confidence interval : (48.30%, 61.7%)
Step-by-step explanation:
Confidence interval for PROPORTION: [tex]p\pm z^* \times S.E.[/tex], where p = sample proportion , z* = two-tailed critical z-value and S.E. = standard error.
As per given: p=55%
Critical z-value for 99% confidence = 2.576
S.E. = 2.6%
Then, required confidence interval :
[tex]55\% \pm (2.576)\times 2.6\%\\\\\approx55\% \pm6.70\%\\\\=(55\%-6.70\%,\ 55\%+6.70\%)\\\\=(48.30\%,\ 61.7\%)[/tex]
Required 99% confidence interval : (48.30%, 61.7%)
PLZZZ HELP THATS THE QUESTION I DONT GET IT
Answer:
C
Step-by-step explanation:
|15-26| = 11
|-8+19| = 11
11/3 + 11/2 = 22/6 + 33/6
22/6 + 33/6 = 55/6
I need help PLEASE i will mark brainliest
Answer:
its b
Step-by-step explanation:
How many degrees is the measurement of the missing angle? (Only numeric answer, no words or symbols at all)
Answer:
65°
Step-by-step explanation:
35° + 80° + x° = 180°
115° + x = 180°
x = 180° - 115°
x = 65°
What is 1 7/8 of 4 9/13?
Answer:
8 83/104.
Step-by-step explanation:
4 9/13 * 1 7/8
= 61/13 * 15/8
= 915/104
= 8 83/104.
in a triangle abc the lengths look the three sides are 7 cm 12 cs and 13 cs
Answer:
So what's the question ur trying to ask?
The owner of a bicycle shop models the shop’s profit in thousands of dollars each year by using the formula p = 0.015x3 – 0.2x2 + 0.95x + 39, where x is the number, in hundreds, of bicycles sold. Graph the function and describe its key features over the relevant domain.
Answer:
k k k k k k k
Step-by-step explanation:
k k okkkk k k high x crcyycs dgdvcsdvk kkhgj hfyjjdf c triol
if a sample of 25 students is taken from a population of 179 students the population variance o^2, is the variance of how many students' heights
Answer: 179
Step-by-step explanation:
The population variance cannot be determined solely from a sample, but the sample variance can provide an estimate of it based on the data collected from the sample.
The population variance ) represents the variance of the entire population. In this case, the population consists of 179 students. However, if we take a sample of 25 students from this population, the variance of this sample is called the sample variance
The sample variance ) is used to estimate the population variance ). It is calculated using the following formula:
The population variance cannot be determined solely from a sample, but the sample variance () can provide an estimate of it based on the data collected from the sample.
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Can someone pls help me?!?
Answer:
Step-by-step explanation:
If the sum of the two given angles is 5 + 10 = 15 then the third side cannot be larger than 15. If it is, the two given angles will fall flat on the third angle.
If the third angle is less than 5 then the sum will be less than 10 and the same thing will happen as described above.
So the correct answer is B
if a polygon is a triangle, then it has exactly three sides. is the converse of the conditional true?
Answer:
If a polygon is a triangle then it has exactly three sides
A polygon has 3 sides if and only if it is a triangle. Put it all together: Conditional: If a polygon is a triangle, then it has three sides. Converse: If a polygon has three sides, then it is a triangle.
Answer:
yes
Step-by-step explanation:
because the polygon it has tree sides it's called triangle hope it's helpWhen a car moves it has.what energy?
Answer:
mechnical energy
Step-by-step explanation:
Cassie has a small cube shaped box. Its volume is 64 cubic cm. What is the area of one face of tje box.
Answer: One face is 16 square centimeters.
Step-by-step explanation: To find the area of a face, you need to know the length of the side. All the sides of the cube are the same, so take the cube root of 64.
[tex]\sqrt[3]{64}=4[/tex] cm is the length of the side
The area of one face is the side length squared 4² = 16
4cm × 4cm = 16 square centimeters.
Answer:
surface area of one face of the cube will be 16 cm².
Step-by-step explanation:
Cassie has a small cube shaped box.
Volume of the box is 64 cm³
We have to find the area of one face of the box.
Let one side of the box is x
Then volume = x³ = 64
x³ = 4³
x = 4
Now area of one face of the cube = x²
then area = 4² = 16 cm²
Therefore, surface area of one face of the cube will be 16 cm².
0.00000001073 as a scientific notation
Answer:
3.456 × 1011
please choose me brainliest
Whats the slope on this graph?
Answer:
[tex]-\frac{1}{4}[/tex]
Step-by-step explanation:
help me please
and don't spam
[tex] \sqrt{ ({ - 1 - 7})^{2} + ({2 - a})^{2} } = \sqrt{ ({ - 1 - a})^{2} + ({2 - ( - 3)})^{2} } \\ [/tex]
Bring both sides of the equation to the power of 2
[tex]( { - 8})^{2} + ({2 - a})^{2} = ({ - 1 - a})^{2} + ({2 + 3})^{2} \\ [/tex]
[tex]64 + 4 - 4a + {a}^{2} = 1 + 2a + {a}^{2} + 25 \\ [/tex]
[tex] {a}^{2} - 4a + 68 = {a}^{2} + 2a + 26 [/tex]
Subtract sides -26
[tex] {a}^{2} - 4a + 68 - 26 = {a}^{2} + 2a + 26 - 26 \\ [/tex]
[tex] {a}^{2} - 4a + 42 = {a}^{2} + 2a [/tex]
Subtract sides -a²
[tex] {a }^{2} - {a}^{2} - 4a + 42 = {a}^{2} - {a}^{2} + 2a \\ [/tex]
[tex] - 4a + 42 = 2a[/tex]
Plus sides 4a
[tex]4a - 4a + 42 = 2a + 4a[/tex]
[tex]42 = 6a[/tex]
Divided sides by 6
[tex] \frac{42}{6} = \frac{6}{6}a \\ [/tex]
[tex]a = 7[/tex]
_________________________________
And we're done.....♥️♥️♥️♥️♥️
Solve the following system of equations using the elimination method.
7x + 20y = 14
2x – 10y = 4
Question 18 options:
A)
(3,1)
B)
(2,0)
C)
(4,–5)
D)
(–3,4)
Answer:
opt B (2,0)
Step-by-step explanation:
.
.
.
pls rate
Answer:
B
Step-by-step explanation:
f(x) = 3x + 2
What is f(5)?
Hello!
f(x) = 3x + 2
Since you are provided with f(5), we will replace every "x" in the equation with the number 5.
f(5) = 3(5) + 2
f(5) = 15 + 2
f(5) = 17
I hope this helps you! Have a great day!
- Mal
choose the ratio that is equivalent to this one 1/6 A. 3/8 B. 4/24 C. 2/6 D. 12/2
Find the volume of a right circular cone that has a height of 13 in and a base with a
circumference of 5.1 in. Round your answer to the nearest tenth of a cubic inch.
Answer:
Step-by-step explanation:
the formula for finding the volume of a cone would be V= 3.14 r sqaured * h/3
so plug that in and it would be 3.14(5.1) sqaured * 13/3
3.14 is the formula of pie which is in the formula for finding the volume of
5.1*5.1= 26.01
3.14* 26.01= 81.67
13/3= 4.34
81.67* 4.34= 354.45
The volume of a right circular cone that has a height of 13 in and a base with a circumference of 5.1 inches is 8.97824.
Calculation of the volume of right circular cone:
Since
We know that
Volume = [tex]\pi r^2 \frac{h}{3}[/tex]
Since the circumference is 5.1 inches
So here the radius be like
Circumference = [tex]2\pi r[/tex]
5.1 = 2(3.14) r
r = 0.8121
Now the volume should be
[tex]= 3.14 \times (0.8121)^2 \frac{13}{3}[/tex]
= 8.97824
Hence, The volume of a right circular cone that has a height of 13 in and a base with a circumference of 5.1 inches is 8.97824.
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Can someone explain this to me becasue ive been trying for the past 30 mins and i still dont understand it
S=$1800+$110*N
Use this equation to plot a graph.
Ingrid and Harish were trying to solve the equation:
22 - 3x = x + 1
Ingrid said, "First, I'll subtract x from both sides so I have a? - 4x = 1. Then I can solve by completing the
square. If I add 4 to each side, I can rewrite the equation as (x - 2)² = 5."
Harish said, “I'll isolate the xạ term by adding 3x to both sides of the equation. Then I'll solve by taking the
square root."
Whose solution strategy would work?
Answer:
Only Ingrid's equation is correct
Answer:
Only Ingrid’s solution works
simplify by using order of operations 10/2 + 3 + 6 + 3/3
Answer:
15
Step-by-step explanation:
Order of operations: Parentheses, Exponents, Multiplication, Division, Addition/Subtraction
We'll start with division first. 10/2 = 5, 3/3 = 1
Then, we'll add the terms left. 5 + 3 + 6 + 1 = 15
Which is a better deal?
An ice company charged $6.02 for 7 bags of ice. If a
convenience store sold 6 bags of ice for $5.52, which is a
better buy?
Explain/Justify your answer
Answer:
The $6.03 for 7 bags of ice is a better deal
Step-by-step explanation:
In order to find out which is a better deal we find the unit price.
To find the unit price we do the cost divided by how many bags of ice.
6.02 divided by 7 = 0.86, so the unit price is 0.86/1
5.52 divided by 6 = 0.92, so the unit price is 0.92/1
Finally, we can see which has a lower unit price which is the $6.03 for 7 bags of ice
2 1/2 X 3 1/3
Help!!!!
[tex]2\frac{1}{2}*3\frac{1}{3}\\\\\frac{2*2+1}{2}*3\frac{1}{3}\\\\\frac{4+1}{2}* 3\frac{1}{3}\\\\\frac{5}{2} *3\frac{1}{3}\\\\\frac{5}{2} *\frac{3*3+1}{3}\\\\\frac{5}{2}* \frac{10}{3} \\\\\frac{5*10}{2*3} =\frac{50}{6} \\\\\frac{25}{3} \\\\8\frac{1}{3}[/tex]
Hope this helps, have a blessed and wonderful day! ✝
- Cutiepatutie
A weight of meteorite A is 7 times the weight of meteorite B. If the sum of their weights is 152 tons find the weight of each
Answer:
no lo se perdon
Step-by-step explanation:
A store charges 6% GCT on all sales. What is the total cost of a shirt marked at $30? *
2 points
Your answer
Answer:
$12
Step-by-step explanation:
I hope this helps. Have a great day!
Answer:
$31.80
Step-by-step explanation:
first convert 6% into a decimal which is 0.06. then multiply 30 by 0.06 to get 6% of 30 which is 1.80. then add 1.80 to 30 to get your final cost of 31.80
[tex]30*0.06=1.80[/tex]
[tex]30+1.80=31.80[/tex]
final cost: $31.80
Hope this helps!
A florist sells a dozen roses for $35.40. She sells individual roses for the same unit cost. Write an equation to represent the relationship between the number of roses, x, and the total cost of the roses, y. How much would 18 roses cost?
Answer: The equation is
The cost of 18 roses is 53.10.
Step-by-step explanation:
Given:
A florist sells a dozen roses for 35.40. She sells individual roses for the same unit price.
Now, to find the cost of 18 roses and write an equation to represent the relationship between the number of roses, x, and the total cost of the roses, y.
1 dozen = 12.
Now, to get the cost of 18 roses we use unitary method:
If 12 roses cost = 35.40.
So, 1 roses cost = 2.95.
Thus, 18 roses cost = 53.10.
Therefore, the cost of 18 roses = 53.10.
Now, to write an equation the relationship between the number of roses and the total cost of the roses:
Cost of per rose = 2.95.
As, given in question:
Number of roses =
Total cost of the roses =
Total cost of the roses = Cost of per rose × Number of roses.
So, the equation is:
Therefore, the equation is And the cost of 18 roses is 53.10.
Jane is asked to buy some chickens, dogs and ducks for her farm. The total number of animals she needs to buy is 50. She has a budget of $1500 to spend on $20/chicken, $50/dog, and $30/duck. Additionally, the number of chickens should be equal to that of ducks. Create a system of 3 equations to model the situation. Assume the number of chickens is x, dogs is y and ducks is z.
Answer:
x = 20, the number of chickens as well as the number of ducks.
........
20 chickens, 20 ducks and 10 Dogs 50-20-20
And...checking
$400 + $600 + $500 = 1500
x the number of chickens as well as the number of ducks
20x + 30x + 50(50-2x) = $1500
-50x = -1000
Step-by-step explanation:
Hope this helps
The system of 3 equations to model the situation are;
x + y + z = 50
20x + 50y + 30z = 1500
x = z
How to write equation?number of chickens = xnumber of dogs = ynumber of ducks = zcost of each chicken = 20cost of each dog = 50cost of each duck = 30Total cost = 1500Total number of animals = 50The equation:
x + y + z = 50
20x + 50y + 30z = 1500
number of chicken = number of ducks
x = z
Therefore, the equations are;
x + y + z = 50
20x + 50y + 30z = 1500
x = z
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mckwjenownfedjoiwnvoibfl?
no because yes.
If mckwjenownfedjoiwnvoibfl is aughwanjkgadgajnk, then no.
You take a package to the local shipping company. They charge $0.72 per pound, and also has a fixed cost of $5
per package. If P represents the number of pounds of your package, and C is the total cost of shipping your
package, which of these is the correct relationship between P and C?
Answer:
yoy didnt put a picture of the answer choices, so I'm not sure which one this would be, but the answer would be C=5 + .72P
Step-by-step explanation:
C is the total cost, so that would be on the opposite side of the equal sign from P. the 5 would be the constant, since that is the starting price for all packages, and the .72 is the price per pound, so you would have to multiply .72 by P pounds in order to complete the equation.
Hope this helps!
Evaluate y5 for y =1.
Answer:
the answer is 5
Step-by-step explanation:
you replace y by 1 and distribute (1)5
