Answer:
if you multiply pi by 64^2 times 6 then it comes out to 77207.78
Step-by-step explanation:
64^2 = 4096
4096 (6) = 24576
24576 (π) ≈ 77207.78
The results of a series of surveys revealed a population with a mean of 4.73 and a standard deviation of 0.865. If each survey has a sample size of 200, which value falls within the interval where 95% of the sample means occur? A. 4.88 B. 4.63 C. 4.91 D. 4.55
Answer:
4.63
Please give me brainliest, I really need it.
The value of 4.63 falls within the interval (4.66, 4.791) where 95% of the sample means occur option (B) is correct.
What is a confidence interval for population standard deviation?It is defined as the sampling distribution following an approximately normal distribution for known standard deviation.
The formula for finding the confidence interval for population standard deviation as follows:
[tex]\rm s\sqrt{\dfrac{n-1}{\chi^2_{\alpha/2, \ n-1}}} < \sigma < s\sqrt{\dfrac{n-1}{\chi^2_{1-\alpha/2, \ n-1}}}[/tex]
Where s is the standard deviation.
n is the sample size.
[tex]\chi^2_{\alpha/2, \ n-1} and \chi^2_{1-\alpha/2, \ n-1}[/tex] are the constant based on the Chi-Square distribution table.
α is the significance level.
σ is the confidence interval for population standard deviation.
Calculating the confidence interval for population standard deviation:
We know significance level = 1 - confidence level
It is given that:
Mean of the population x = 4.73
Standard deviation s = 0.865
Sample size n = 200
The interval where 95% of the sample means occur:
Lower limit = 4.73 - 0.865/√200
Lower limit = 4.66
Upper limit = 4.73 + 0.865/√200
Upper limit = 4.791
The interval = (4.66, 4.791)
Thus, the value of 4.63 falls within the interval (4.66, 4.791) where 95% of the sample means occur option (B) is correct.
Learn more about the confidence interval here:
brainly.com/question/6654139
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4/5x+5=9 solve for x please i have 8 questions left!!!!!!!!!!!
Answer:
x= 5
Step-by-step explanation:
You need to get rid of the fraction first and to do that you muliply the whole equation by 5 so that your new equation reads 4x+25=45. Then you subtract 25 from both sides so you have 4x=20. Divide both sides by 4 so x=5.
Helllohello help please if you want -
Answer:
True
Step-by-step explanation:
Let's take a problem such as 3x-2=6
To isolate the variable, you must get rid of everything on one side and essentially do the inverse to the other side. We see -2, so you have to add 2 to each side.
Now you have 3x=8
Next, we device each side by 3. Right now, x is being multiplied by 3 so we have to do the inverse.
Answer is x = 8/3 or 2.666666666666667
Answer:
true
Step-by-step explanation:
One leg of a right triangle is 3 cm and the hypotenuse is 5 cm. Joni found the length of the other leg by evaluating √32 + 52. What error did she make? How would you help her correct her error so she is less likely to make the same error in the future?
Answer: See explanation
Step-by-step explanation:
We should note that the hypothenuse is the longest side in a triangle. Therefore, the length of the other side will be represented by x. This is then solved below:
x² + 3² = 5²
x² + 9 = 25
x² = 25 - 9
x² = 16
x = ✓16
x = 4cm
The other leg is 4cm
Joni shouldn't have added the hypothenuse to the other leg but rather subtracted the square of the other leg from the square of the hypothenuse and then find the square root.
Give the quotient in simplest form:
Answer:
Answer should be 5/2 I thinkkkkk
Answer:
2.5 or can be 5/2
Step-by-step explanation:
WILL MRAK BRAINLIESTTTT IF GOTTEN RIGHT DONT ANSWER IF U DONT KNOW!
Answer:
BC=4
Step-by-step explanation:
didn't i do this already lol
Find the Equation of the lines.
6. What is the perimeter of Figure ABCD with vertices at A(2, 3), B(5,3),
C(5, -3), and D(2,-3)? What is the area?
Oel visits a department store to pick a pack of salted mixed nuts. A pack of 15 oz. Is priced at $7.50 and the offer on a pack containing 25 oz. Is $11.75. Which pack is the better buy
What number is obtained by increasing by 36 50%
Answer:
54
Step-by-step explanation:
The given number to be increased = 36
The percentage by which the number is increased = 50%
In increasing a number by a percentage, we find the value of the percentage increase of the number and add to the number as follows;
50% of 36 + 36 = 50/100 × 36 + 36 = 54
Second method
The find the number obtained by increasing a number by a given percentage 'x', we add 100 to the give percentage and multiply the result by the number and hen divide the final result by 100 as follows;
36 increased by 50% = (100 + 50) × 36/100 = 54
8. Jackie is selling cookies as a
fundraiser. Each box of cookies she
sells costs $4. Write an expression
that can be used to show how
much she will earn.
от е
What is the measure of an angle that is the complement of angle A?
A. 135
B. 5
C. 45
D. None of the above
E. 55
A checking account has a balance of $350 a customer makes Cu with drawls 150 more than the other then he makes a deposit of 75 what is the answer
Answer:
275
Step-by-step explanation:
Lauryn wants to analyze the weights of
the dogs for people that own that animal
in her class. She records the following
weights in a class survey:
28, 61, 17, 42, 37, 37, 22, 40, 13, 14, 33,
41, 25
What is the median of the data?
Answer: 33
If you put all the numbers In order from least to greatest and find the middle number you'll get the answer
A box of fruit contained twice as many apples as pears. Chris and Lily divided them up so that Chris had
twice as many pieces of fruit as Lily. Which one of the following statements is always true?
Chris took at least one pear.
Chris took twice as many apples as pears
Chris took twice as many apples as Lily.
Chris took as many apples as Lily took pears.
Chris took as many pears as Lily took apples.
Answer:
what did you get?
Step-by-step explanation:
Answer:
Step-by-step explanation:
Christy took as many pears as Lily got apples.
alex works for his father assembling clock motors he is paid a piecework rate of $8.50 per motor. this week he assembled 21 motors
Answer: $178.50
Step-by-step explanation:
If Alex is paid a piecework rate of $8.50 per motor, then;
Price per motor assembly = $8.50
By assembling 21 motors Alex gets,
1 motor = $8.50
21 motors = (21 * $8.50) / 1
= $178.50 / 1
= $178.50
By assembling 21 motors,
Alex gets $178.50
Please help me with this, it's urgent and due tonight (Ylasterdev125 do not try to answer this with your petty virus file)
Answer:
domain is (-1 , 2) and the range is (0 , 4)
SOMEONE ANSWER FASTT!!
*create an equation for this situation. Use the equation to solve the problem. (Algebra)
Some Girl Guides are raising money for their jamboree. Their goal is to raise $1000, They already have $232 from the bake sales. To raise the remainder, they are planning a walk-a-thon. if each person walking raises $24, how many walkers will the Girl Guides need to reach their goal?
please explain how to do this
Answer:
Step-by-step explanation:
GiVing
brains!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
Which expression has a value of 13?
(20 ÷ 4) − 4 + 3 x 2
(18 ÷ 2) + 6 ÷ 6 + 3
(16 ÷ 4) + 3 x 4 − 1
(10 ÷ 2) − 3 + 4 x 2
(18/2)+6/6+3
Step-by-step explanation:
(18/2)=9
6/6=1
9+1=10
10+3=13
Use PEMDAS
The number of dimes is 3 more than twice the number if nickels.The total value of the coins is $7.05.How many of each type of coin did she find?
Answer:wait can you umm rewrite this i dont get it
Step-by-step explanation:
someone answer this!!!! Please:)
3+(5+4)(8-6)
3+(9)(2)
3+18
21
An oblique candle with a volume of 270 cubic centimeters is 18 centimeters tall. The width of the triangular candle base is 5 centimeters, and the width of the slanted candle is 7 centimeters. An oblique triangular prism has a volume of 270 cubic centimeters. The vertical height is 18 centimeters. The width of the triangular bases is 6 centimeters, and the width of the slanted prism is 7 centimeters. What dimensions of the box are required to fit the candle? 5 cm by 6 cm by 18 cm 7 cm by 6 cm by 18 cm 5 cm by 3 cm by 18 cm 7 cm by 3 cm by 18 cm
Answer:
7 cm by 6 cm by 18 cm
Step-by-step explanation:
Given :
Volume of candle = 270cm³
Height = 18cm
Triangular base = 5cm
Width of candle = 7cm
Volume = Area of base * height
270cm³ = Area of base * 18
Area of base = 270cm³ / 18cm
Area of base = 15 cm²
Using this to find the height of triangular prism :
Area = 1/2 * base * height
15cm² = 1/2 * 5 * height
15cm² = 2.5 *. Height
Height = 6 cm
Hence, the dimension of triangular prism is : 7cm by 6cm by 18cm
Answer:
7 cm by 6 cm by 18 cm
Step-by-step explanation:
its D
Write an equation of a line in slope intercept form that passes through (6,5) 1 poi
and is parallel to y =-X+4 *
Answer:
y = -x + 11
Step-by-step explanation:
The slope of the line y = -x + 4 is -1.
So the slope of our line is also -1 ( because they are parallel).
First use the point-slope form of the equation of a line:
y - y1 = m(x - x1) where m is the slope and (x1, y1) is a point on the line.
Here m = -1 and (x1, y1) = (6, 5).
So we have:
y - 5 = -1(x - 6)
y - 5 = -x + 6
y = -x + 11 <------ Slope intercept form.
What would x equal( rounded to the nearest tenth)
Solve the equation 2/3(9+x)=−5(4−x).
Answer:
the answer is x=6
Step-by-step explanation:
hoped I helped
The 2000 population of a city was 705,000 and was increasing at the rate of 1.51% each year. At that rate, when will the population be 1 million
Answer:
The population would be 1 million in 2024.
Step-by-step explanation:
In order to find the answer you can use the population growth formula:
A= P*e^rt
A=Population after time=1,000,000
P= Starting population=705,000
e= Euler number that is equal to 2.718
r= rate of growth=0.0151
t= time
Now, you can replace the values on the formula and solve for t:
1,000,000 = 705,000*e^0.0151t
1,000,000/705,000 = e^0.0151t
ln(1,000/705) = ln(e^0.0151t)
ln(1000/705) = 0.0151t
t = [ln(1000/705)]/0.0151
t = 23.14 years
According to this, the answer is that the population would be 1 million in 2024.
choose equation that will be used to solve this problem
Hugo sold blank tattoos
Answer:
It looks like the equataion is 2x(hugo)-10+y=137
Step-by-step explanation:
Hugo sold twice as many as italia but fewer 10.
Determine how many terms the geometric series has, and then find the sum of the series
0.3 + 0.03 +0.003 +.+ 0.000003
Answer:
0.333003
Step-by-step explanation:
0.3
+ 0.03
+ 0.003
+ 0
+ 0.000003
------------------------
0.333003
HeLP ME Plewse I’m having trouble
Answer:
1. 324 cm
Step-by-step explanation:
2. 150 cm
