A supposed "lucky coin" is to be tested to see if it is unfair, that is, the proportion of "heads" results is not 50%. It is
flipped 100 times and found to land on heads only 41 times. Test the claim that the coin is unfair.
Answer:
you need question right why you didnt ask
Step-by-step explanation:
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What is 40% of 160?
OA 20
OB. 40
OC. 32
OD. 64
OE 75
The correct answer would be D. 64
The 40 percentage of 160 is 64, the correct option is D.
How to find the percentage from the total value?
Suppose the value of which a thing is expressed in percentage is "a'
Suppose the percent that considered thing is of "a" is b%
Then since percent shows per 100 (since cent means 100), thus we will first divide the whole part in 100 parts and then we multiply it with b so that we collect b items per 100 items(that is exactly what b per cent means).
We need to Write the percent as a fraction in simplest form
16.24%
So, we can rewrite it as;
16.24 / 100
16 and 24/100 or 16 6/25
So the percent as a fraction is 16 6/25
We are given that;
Total value= 160
Percentage= 40%
Now,
To find 40% of 160,
=40%=0.4
We can multiply 0.4 by 160.
=0.4*160
=64
Therefore, by the given percentage the answer will be 64.
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Charlie kicked the football 71 yards. He kicked it 48 more yards than his brother.
How far did his brother kick the football?
Show your work in the box below.
Answer:
23 yards
71 - 48 = 23
this is the answer to your question
if this helpful to you give me a brainliest.....
Put these numbers in order from greatest to least
-2/8
34/40
9/12
4
Answer:
4, 34/40, 9/12, -2/8
Step-by-step explanation:
Hope this helps!
integrate the following by parts |x^2 e^2x dx
Answer:
The answer is shown in the picture. you basically have to do integration by parts 2 times to get final answer.
PLEASE HELP ILL GIVE FIVE STARS AND GIVE BRAINLIEST
Ray is x years old. His brother Ron is y years older than Ray.
How old will Ron be in 2 years?
Answer:
Ray is x years old.
Ron is x+y years old.
In 2 years, Ron will be two years older than now, so x+y+2 years old.
Step-by-step explanation:
Enjoy!
Answer:
Ray is x years old.
Ron is x + y years old.
In 2 years, Ron will be two years older than now, so
x + y + 2 years old.
Since their ages are variables, you should only have 1 clear digit which is 2. Due to the information given
A bookstore has 120 science fiction books. It has 30% fewer mysteries than science
fiction books. It has 25% more biographies than mysteries. How many biographies
are in the bookstore? Show your work.
Answer:
105
Step-by-step explanation:
Explanation is in photo
You buy apple chips and banana chips in the ratio of 2 : 7. How many ounces of banana chips do you buy when you buy n ounces of apple chips?
Answer:
7/2 n ounces of banana
Step-by-step explanation:
a / b = 2/7
re-arrange to
7/2 a = b
n ounces of apple would result in
7/2 n = banana chip ounces
find sine or cosine using identity
Answer:
sin(theta) = [tex]\frac{\sqrt{7}}{4}[/tex]
Step-by-step explanation:
cos(theta) = [tex]\frac{x}{r}[/tex]
cos(theta) = [tex]\frac{3}{4}[/tex]
so x = 3 , r = 4 , and y =?
Pythagorean Theorem: x^2 +y^2 = r^2 or a^2 +b^2 = c^2
x^2 +y^2 = r^2
(3)^2 +y^2 = (4)^2
9 + y^2 = 16
y^2 = 7
[tex]y=\sqrt{7},-\sqrt{7}[/tex]
In Quadrant 1, so its only [tex]y=\sqrt{7}[/tex].
sin(theta) = [tex]\frac{y}{r}[/tex]
sin(theta) = [tex]\frac{\sqrt{7}}{4}[/tex]
A right triangle has a hypotenuse with a length 12 and a leg with
length 5. How long is the triangle's other leg?
Answer:
13
Step-by-step explanation:
pythagorean theorum
a^2+b^2=c^2
12^2+5^2=c^2
144+25=c^2
c^2=169
c=13
The length of the triangle's other leg is approximately 10.908.
What is a triangle?A triangle is a 2-D figure with three sides and three angles.
The sum of the angles is 180 degrees.
We can have an obtuse triangle, an acute triangle, or a right triangle.
We have,
We can use the Pythagorean theorem to solve for the length of the other leg of the right triangle.
The Pythagorean theorem states that for any right triangle, the square of the length of the hypotenuse (the longest side) is equal to the sum of the squares of the lengths of the other two sides (the legs).
That is, for a right triangle with legs a and b and hypotenuse c:
c² = a² + b²
In this case,
We know that the hypotenuse has a length of 12 and one of the legs has a length of 5.
Let's denote the length of the other leg as "x".
So we can set up the equation:
12² = 5² + x²
Simplifying, we get:
144 = 25 + x^2
Subtracting 25 from both sides, we get:
119 = x²
Taking the square root of both sides, we get:
x ≈ 10.908
Therefore,
The length of the triangle's other leg is approximately 10.908.
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[tex]\begin{equation}\text { Question: If } \int_{\frac{-1}{\sqrt{2}}}^{\frac{1}{\sqrt{2}}}\left(\left(\frac{x-1}{x+1}\right)^{2}+\left(\frac{x+1}{x-1}\right)^{2}-2\right)^{\frac{1}{2}} d x\end{equation}[/tex]
Options:
(a) ln16
(b) 2ln16
(c) 3ln16
(d) 4ln16
We want to evaluate
[tex]\displaystyle \int_{-\frac1{\sqrt2}}^{\frac1{\sqrt2}} \sqrt{\left(\frac{x-1}{x+1}\right)^2 + \left(\frac{x+1}{x-1}\right)^2 - 2} \, dx[/tex]
First we note that the integrand is even (replacing x with -x doesn't fundamentally alter the function being integrated), so this is equal to
[tex]\displaystyle 2 \int_0^{\frac1{\sqrt2}} \sqrt{\left(\frac{x-1}{x+1}\right)^2 + \left(\frac{x+1}{x-1}\right)^2 - 2} \, dx[/tex]
The radicand reduces significantly to
[tex]\displaystyle \left(\frac{x-1}{x+1}\right)^2 + \left(\frac{x+1}{x-1}\right)^2 - 2 = \frac{16x^2}{(1-x^2)^2}[/tex]
so that taking the square root, we simplify the integral to
[tex]\displaystyle 8 \int_0^{\frac1{\sqrt2}} \frac x{1-x^2} \, dx[/tex]
which is trivially computed with a substitution of [tex]y = 1 - x^2[/tex] and [tex]dy=-2x\,dx[/tex]:
[tex]\displaystyle -4 \int_1^{\frac12} \frac{dy}y = 4 \int_{\frac12}^1 \frac{dy}y = -4 \ln\left(\frac12\right) = \ln(2^4) = \boxed{\ln(16)}[/tex]
I need help please I need help please
Answer:
1/8 of the class voted for the nature park
Step-by-step explanation:
there is only 1/4 votes left because 3/4 voted for the museum. 1/8 is half of 1/4. So the answer must be another 1/8 to equal 4/4 or 1.
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Write an equation of the line in slope-intercept form.
Answer:
Step-by-step explanation:
Y-intercept is -2.
Using slope formula, 2-(-2)/2-0 = 4/2 = 2 = slope.
Plugging into slope-intercept form:
y=mx+b => y=2x-2
In Finland UK the elevation from sea level is -4 m in San Diego US it is +40 feet the elevations are given in different units explain how to tell which location has a greater division
San Diego, US has a greater elevation
Step-by-step explanation:[tex]-4m < +40\%[/tex]
[tex]\&\ positive\ numbers\ are\ always\ greencer\ than[/tex]
[tex]negative\ numbers?[/tex]
[tex]So\ San\ Diego,\ US\ has\ a\ greater\ elevation[/tex]
I hope this helps you
:)
Determine the mean of the following data. Choose the correct option.
7, 8, 9, 2, 4, 5, 12, 9
Answer:
7
Step-by-step explanation:
mean means average
there are 8 numbers
add them all up
7+8+9+2+4+5+12+9=56
divide 56 by 8 = 7
in 1961 yuri gagarin became the first man to orbit the sun he traveled for 108 minutes at an average speed of 235 miles per minute how many miles did he travel
Answer:
25,380 miles
Step-by-step explanation:
108 minutes × 235 = 25,380
Based on the graphs of the equations y = 2x + 4 and y = x2 – x + 4, the solutions are located at points:
(3, 10) and (–2, 0)
(–2, 0) and (0.5, 3.75)
(3, 10) and (0, 4)
(0.5, 3.75) and (0, 4)
The solution of the equations y = 2x + 4 and y = x² – x + 4 will be (0, 4) and (3, 10). Then the correct option is C.
What is the solution of the equation?The solution of the equation means the value of the unknown or variable.
The system of the equations are given below.
y = 2x + 4 …1
y = x² – x + 4 …2
From equation 1 and 2, then the equation will be
x² – x + 4 = 2x + 4
x² – 3x = 0
x(x – 3) = 0
x = 0, 3
At x = 0, the value of the y will be
y = 2(0) + 4
y = 0+ 4
y = 4
At x = 3, the value of the y will be
y = 2(3) + 4
y = 6 + 4
y = 10
Thus, the solution of the equations will be (0, 4) and (3, 10).
Then the correct option is C.
The graph of the line and the parabola is given below.
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Is 4 4/9 + 8 7/9. 13 2/9 the mixed number
Answer:
Yes
Step-by-step explanation:
Correct
Plss answer it, it is supposed to be done-
Use the shape to complete Questions 8, 9, and 10.
8. Draw a triangle around a point
9. Draw a box around a line segment.
10. Circle an angle.
The answers to the question are all attached given that they are all drawings. The subject here is shapes, lines, and angles.
What is a Triangle around a Point?A triangle around a point is a triangle that is constructed such that a point is equidistant from all the angles and all the sides that triangle. This point is thus referred to as the circumcenter of the triangle.
The triangle in the attached image is drawn around point D.
What is a Line Segment?A Line segment is the part of a line with two endpoints. The box in the diagram is drawn between points A and B.
What does it mean to circle an angle?When you put a circle around an angle, you have circled that angle. This most case is used to highlight an angle.
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Please hurry Im timed!!
Divide.
3
2.
mo
-
23
5
9
02
10
11
1
15
ON
9
O3
10
3
014
45
Answer:
39/10
Step-by-step explanation:
.......................
Find two positive numbers whose product is 192 and their sum is a minimum.
Answer:
Since we want a positive number, x = 24. y = 192/x = 8
Step-by-step explanation:
Let x and y be the two positive numbers.
- Their product is 192: x*y = 192
- the sum of the first plus 3 times the second is a minimum: x + 3y
From the first equation, y = 192/x. Substitute that into the second equation:
x + 3y = x + 3(192/x) = x + 576/x
Now take the first derivative, set it to zero, and solve for x:
d(x + 576/x)/dx = 1 - 576/x2
0 = 1 - 576/x2
0 = x2 - 576 [Multiplied both sides by x2]
576 = x2
√576 = √x2
±24 = x
Since we want a positive number, x = 24. y = 192/x = 8
As a check, the factors of 192 are 192*1, 96*2, 48*4, 24*8, 16*12
192 + 3*1 = 195
96 + 3*2 = 102
48 + 3*4 = 60
24 + 3*8 = 48
16 + 3*12 = 52
24 + 3*8 is indeed the minimum
Eleanor is sewing a tablecloth for her circular kitchen table . The length from one edge of the table to the other 3ft. What is the minimum amount of fabric that Eleanor needs to purchase?
Answer:
[tex]7.07ft^{2}[/tex] or [tex]2.25\pi[/tex]
Step-by-step explanation:
To find the minimum amount of fabric, one needs to find the area of the table, the equation for the area of a circle is [tex]A=\pi r^{2}[/tex]
The question gives the length from one edge of the table to the other, this can also be defined as the diameter, the diameter is equal to double the raidus so dividing the diameter in half gives the radius. The radius of this table is calculated to be 1.5 ft.
Plugging in our radius to the area equation we get [tex]A=\pi 1.5^{2}= 7.07ft^{2}[/tex] or [tex]2.25\pi[/tex]
Statistics 1
You are buying uniforms for young male military recruits. You know the mean chest size and the standard deviation of the chest size. About what proportion of the chest sizes of the recruits would you expect to be within one standard deviation of the mean chest size? Choose the best answer below
A. 50%, if the mean chest size is Normally distributed
B. 2/3
C. 50%, if the chest sizes are Normally distributed
D. 68%, if the chest sizes are Normally distributed
E. 95%
HELPPP MEE PLEASEEEEEEEEEE
Answer:
How many computers does my family own?
Step-by-step explanation:
A statistical question is one that can be answered by collecting data and where there will be variability in that data - Tasks
Find the surface area of the Cylinder, will mark BRAINLIEST if correct
Answer:
About 1885 sq. ft
Step-by-step explanation:
[tex]v = \pi \: (10)^{2} (6) [/tex]
Since the radius is 10ft and the height of the cylinder is 6 ft you substitute that into the formula and you receive 1884.96.
What is the smallest positive integer n such that n! ends in at least 2019 zeros?
Answer:
I think there's 502
Step-by-step explanation:
if this is a olunomical question that should be it I believe, because you have to write in standered form then when it equals zero, then factor it
Solve for x in the diagram below.
Answer:
x=20Step-by-step explanation:
hope it will help you
Answer:
Step-by-step explanation:
x+ 2x + x +10 = 90
Combine like terms
4x + 10 = 90
To isolate 'x', first subtract 10 from both sides
4x = 90 - 10
4x = 80
Now, divide both sides by 4 to get the value of 'x'
x = 80/4
x = 20
Help Asap
One tube of paint covers 1,400 square inches of ramp. Based on this, how many tubes of paint will be needed to paint the ramp
My answer from the answer above is 3,672 sq in.
Answer:
3
Step-by-step explanation:
The number of tubes can be found from an inequality that relates the number of square inches that can be painted to the number of square inches that must be painted.
Let t represent the number of tubes.
1400t ≥ 3672 . . . . . the number of tubes that will paint at least 3672 in²
t > 2.623 . . . . . divide by 1400
If only whole numbers of tubes are available, then ...
3 tubes are needed to paint the ramp.
Answer:
Step-by-step explanation:
The number of tubes can be found from an inequality that relates the number of square inches that can be painted to the number of square inches that must be painted.
Let t represent the number of tubes.
1400t ≥ 3672 . . . . . the number of tubes that will paint at least 3672 in²
t > 2.623 . . . . . divide by 1400
If only whole numbers of tubes a
The graphs below have the same shape. Complete the equation of the blue
graph. Enter exponents using the caret (^); for example, enter x as X^2. DO
not include "G(x) =" in your answer.
The equation of the graph G(x) is (x - 4)^2 + 1.
We have given the graph below have the same shape.
We have to find the equation of the graph g(x).
We have to find the equation of g(x) by using the phase shifting.
What is the shifting of the graph?A shift is a rigid translation in that it does not change the shape or size of the graph of the function.
Here we can see that the vertex of the graph in f(x) is (0,0) and the
vertex of the graph is g(x) is (4,1)
Therefore [tex]x^2[/tex] is replaced by [tex](x-4)^2[/tex].
and is shifted upward one unit therefore we get
[tex]G(x)=(x-4)^2+1[/tex]
Therefore we get the graph of g(x)= (x - 4)^2 + 1.
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On August 31, 2021, Cullumber Company had a cash balance per its books of $26,420. The bank statement on that date showed a balance of $16,780. A comparison of the bank statement with the Cash account revealed the following.
1.The August 31 deposit of $17,220 was not included on the August bank statement.
2.The bank statement shows that Cullumber received EFT deposits from customers on account totalling $2,050 in August. Cullumber has not recorded any of these amounts.
3.Cheque #673 for $1,230 was outstanding on July 31. It did not clear the bank account in August. All of the cheques written in August have cleared the bank by August 31, except for cheque #710 for $2,330, and #712 for $2,220.
4.The bank statement showed on August 29 an NSF charge of $187 for a cheque issued by R. Dubai, a customer, in payment of their account. This amount included an $10 service charge by Cullumber’s bank. The company’s policy is to pass on all NSF service charges to the customer.
5.Bank service charges of $27 were included on the August statement.
6.The bank recorded cheque #705 for $137 as $173. The cheque had been issued to pay for freight out on a sale. Cullumber had correctly recorded the cheque.
Prepare a bank reconciliation at August 31
Prepare the necessary adjusting entries on August 31.
a) The preparation of the bank reconciliation statement on August 31 for Cullumber Company is as follows:
Bank Reconciliation StatementBalance as per bank statement $16,780
Add uncredited deposits of 17,220
Check #705 overstated 36
Less uncashed checks (5,780)
Adjusted bank statement balance of $28,256
b) The preparation of the necessary adjusting entries on August 31 is as follows:
Debit Cash $2,050
Credit Accounts Receivable (EFT deposits) $2,050
Debit Accounts Receivable (R. Dubai) $197
Credit NSF charges $187
Credit Service charges $10
Debit Bank service charges $27
Credit Cash $27
What is bank reconciliation?Bank reconciliation is the comparison of an entity's records with those of its bank, to uncover any differences between these two sets of records of bank transactions.
Bank reconciliation is carried out by the preparation of a bank reconciliation statement, which outlines the deposits, withdrawals, and other activities affecting a bank account for a specific period.
Data and Calculations:Cash balance per books on August 31, 2021 = $26,420
Bank statement balance = $16,780
Analysis of Discrepancies:1. Uncredited deposit = $17,220
2. EFT deposits = $2,050
3. Outstanding checks:
Check #673 = $1,230
Check #710 = $2,330
Check #712 = $2,220
Total outstanding checks = $5,780 ($1,230 + $2,330 + $2,220)
4. NSF charge = $187
Service charge = $10
5. Bank service charges = $27
6. Check #705 overstated = $36 ($173 - $137)
Adjusted Cash Account:Balance as per Cash Book $26,420
EFT deposits $2,050
Less:
NSF charge 187
Bank service charges 27 (214)
Adjusted cash book balance $28,256
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