Answer:
33.51
Step-by-step explanation:
π× r.... 3.142 ×2 = 6.284
180/6.284 =28.644
7+2n=8n-5
n=?
whatsl does n equal
8n -2n=7+5
6n =12
n =2
this is the answer
please help!!! will mark brainlist!!
Answer true or false
Answer:
true
Step-by-step explanation:
please mark brainiest
PLEASE NO LINKS AND PLEASE HURRY
Answer: the answer is the last one, 2 and one thirds minus two and two thirds
Step-by-step explanation: free the equation from parentheses by multiplying 1/3 by 5x and 8. equals 5/3x - 8/3 + 2/3. Combine x's for 7/3 - 8/3. Convert into mixed numbers fo final equation
The claim is that weights (grams) of quarters made after 1964 have a mean equal to 5.670 g as required by mint specifications. The sample size is n = 39 and the test
statistic is t= -3.276. Use technology to find the P-value. Based on the result what is the final conclusion? Use a significance level of 0.01.
State the null and alternative hypotheses
Hop
H.
(Type integers or decimals. Do not round)
Testing the hypothesis, we have that:
The null hypothesis is [tex]H_0: \mu = 5.67[/tex]The alternative hypothesis is: [tex]H_1: \mu \neq 5.67[/tex]The p-value of the test is of 0.002252.The p-value is 0.002252 < 0.01, which means that the final conclusion is that the mean weight of quarts made after 1960 is different than 5.67g.At the null hypothesis, we test if the mean is of 5.670g, that is:
[tex]H_0: \mu = 5.67[/tex]
At the alternative hypothesis, we test if the mean is different of 5.670g, that is:
[tex]H_1: \mu \neq 5.67[/tex]
The test statistic is t = -3.276, with the number of degrees of freedom given by:
[tex]df = n - 1 = 39 - 1 = 38[/tex]
The p-value is found using a t-distribution calculator, using a two-tailed test(as the alternative hypothesis is that the mean is different from the value), with t = -3.276 and 38 df. This p-value is of 0.002252.
The p-value is 0.002252 < 0.01, which means that the final conclusion is that the mean weight of quarts made after 1960 is different than 5.67g.
A similar problem is given at https://brainly.com/question/24146681
Y=arccos(1/x)
Please help me do them all! I don’t know derivatives :(
Answer:
[tex]f(x) = {sec}^{ - 1} x \\ let \: y = {sec}^{ - 1} x \rightarrow \: x = sec \: y\\ \frac{dx}{dx} = \frac{d(sec \: y)}{dx} \\ 1 = \frac{d(sec \: y)}{dx} \times \frac{dy}{dy} \\ 1 = \frac{d(sec \: y)}{dy} \times \frac{dy}{dx} \\1 = tan \: y.sec \: y. \frac{dy}{dx} \\ \frac{dy}{dx} = \frac{1}{tan \: y.sec \: y} \\ \frac{dy}{dx} = \frac{1}{ \sqrt{( {sec}^{2} \: y - 1}) .sec \: y} \\ \frac{dy}{dx} = \frac{1}{ |x | \sqrt{ {x }^{2} - 1} } \\ \therefore \frac{d( {sec}^{ - 1}x) }{dx} = \frac{1}{ |x | \sqrt{ {x }^{2} - 1} } \\ \frac{d( {sec}^{ - 1}5x) }{dx} = \frac{1}{ |5x | \sqrt{25 {x }^{2} - 1} }\\\\y=arccos(\frac{1}{x})\Rightarrow cosy=\frac{1}{x}\\x=secy\Rightarrow y=arcsecx\\\therefore \frac{d( {sec}^{ - 1}x) }{dx} = \frac{1}{ |x | \sqrt{ {x }^{2} - 1} }[/tex]
find the perimeter of rectangle.
Answer:
it depends on how big the rectangle is though...
Step-by-step explanation:
Answer:
6x + 10
Step-by-step explanation:
Given,
Length ( l ) = 3x
Breadth ( b ) = 5
To find : Perimeter of the rectangle = ?
Formula : -
Perimeter of the rectangle = 2 ( l + b )
Perimeter of the rectangle
= 2 ( 3x + 5 )
= 2 ( 3x ) + 2 ( 5 )
= 6x + 10
I will mark brainliest for the right answer with a description that helps me on how to actually solve this please
Answer:
$126
Step-by-step explanation:
I divided the figure in 3 parts, 1 triangle and 2 rectangles
found the area of each figure and added all to find the total area
The area beneath the normal density curve is separated into three regions by the values
and
. Set the mean of the normal density curve to 6.4, the standard deviation to 0.7, and the -value
of
to 6.7. First, determine the value of the area to the right of .
Place
so that it equally divides the area to the left of
. What is the -value
of ?
The value of the area to the right of X > 6.7 calculated from the normal distribution principle is 0.334
Given the Parameters :
Mean, μ = 6.4Standard deviation, σ = 0.7X = 6.7Using the Zscore formula for a normal distribution :
Zscore = (X - mean) / standard deviationThe Zscore, when X = 6.7
Zscore = (6.7 - 6.4) / 0.7 = 0.4286The area to the right of the distribution :
P(Z > 0.4286) = 1 - P(Z < 0.4286)Using a normal distribution table or calculator :
P(Z > 0.4286) = 1 - 0.66589 = 0.334Therefore, the probability value of P(X < 6.7) is
P(Z > 0.4286) = 0.334Learn more :https://brainly.com/question/8165716
What is the value of x and y? Question 6 options: x = 40 , y = 40 x = 8, y = 20 x = 8 , y = 40 x = 40, y = 20
Answer:
the triangle is isosceles triangle. so, the two angles of the same side are equal.
(5x)°=40°
x = 40/5
x = 8
40° +40°+(2y+20)°=180°
80 + 2y +20 =180°
100° +2y =180°
180°-100°=2y
80° = 2y
80°/2= y
40 = y
a) 16 / (-4)
b) (-56) / 8
c) (-28) / (-2)
If jada can walk 2 miles in 1.5 hours, how long will it take jada to walk 6 miles?
Last year, the amount of 6th grade students currently enrolled in orchestra is twice the amount of 8th grade students. There are 10 more 7th grade students in orchestra than 8th grade students
Write expressions for the number of students in orchestra at each grade level if the number of students is represented by x students
Answer:
X=8th grade 2x=6th grade x +10=7th grade
solve for t: 2-16t=6(-3t+2)
Answer:
t = 5Step-by-step explanation:
Just let me know if you want an explanation and I will do it.
Hope this helped. A brainliest would be very much appreciated. (I need 3 brainliest so I can level up) :)
At LaGuardia Airport for a certain nightly flight, the probability that it will rain is 0.07 and the probability that the flight will be delayed is 0.12. The probability that it will not rain the flight will leave on time is 0.87. What is the probability that it is raining if the flight has been delayed? Round your answer .
Probability of not raining and the flight leaving on time is equals to 0.320 .
De Morgan's law
P( A'∩ B') = P (A∪B)'
P (A∪B)' = 1 - P (A∪B)
P(A∪B) = P(A) + P(B) - P(A∩B)
According to the question,
Let Probability of rain = P(A)
= 0.07
Probability of flight delay =P(B) = 0.12
Therefore ,
Probability of rain and flight delay = P (A∩B)
= 0.87
Probability of not raining and flight on time = P( A'∩ B')
Substitute the values in the formula
P( A'∩ B') = 1 - [ 0.07 + 0.12 -0.87]
= 1- 0.68
= 0.32
= 0.320 ( nearest thousandth)
Learn more about Probability here
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A sweet potato casserole recipe calls for cup of flour for 4 servings. To serve 16 people, how much flour is needed?
Answer:
4 Cups of Flour
Step-by-step explanation:
Write the equation of the line perpendicular to 2x+3y=7 that passes through the point (-4, 6). Write your answer in slope-intercept form.
Answer:
Ig This Would Be The Answer
Step-by-step explanation:
Reorder 73 7 3 and 2x3 2 x 3 . Rewrite in slope-intercept form. Using the slope-intercept form, the slope is 23 .
The price of a technology stock has risen to $9.66 today. Yesterday's price was $9.53. Find the percentage increase. Round your answer to the nearest tenth of a percent
Answer:
0.13
Step-by-step explanation:
10 ways to divide 96 equally
96 divided by 2 = 48
96 divided by 3 = 32
96 divided by 4 = 24
96 divided by 6 = 16
96 divided by 8 = 12
96 divided by 12 = 8
96 divided by 16 = 6
96 divided by 24 = 4
96 divided by 32 = 3
96 divided by 48 = 2
Need help on this question
Answer:
m < U = 65°
Step-by-step explanation:
Given that m < PTU° = 115°, and that it is a supplement to < UTV, then we can establish that m < UTV = 65° because their angles must add up to 180°.
From this point forward, we'll name < UTV as < T of △VUT.
Now that we have the measure of < T, we can find out the value of the missing angle, < VUT, through the following equation:
180° = m < V° + m < T° + m < U°
180° = m < 50° + m < 65° + x
180° = m < 115° + x
Subtract m < 115 from both sides to isolate x:
180° - m < 115° = m < 115° - m < 115° + x
65° = x
To verify that we have the correct answer, we'll add up all the measures of the three angles of the triangle to see if it sums up to 180°:
180° = m < V° + m < T° + m < U°
180° = m < 50° + m < 65° + m < 65°
180° = m < 50° + m < 65° + m < 65°
180° = 180° (True statement).
Therefore, the measure of the missing angle, < U = 65°
Translate each graph as specified below.
(a) The graph of y=f(x) is shown. Translate it to get the graph of y=f(x) - 4.
(b) The graph of y=g(x) is shown. Translate it to get the graph of y=g(x - 2).
Answer:
1
Step-by-step explanation:
1
The answers are :
a) The graph is translated downwards by 4 units.
b) The graph is translated downwards by 2 units.
What do you mean by translation of a graph ?
The modification of an existing graph or graphed equation to create a different version of the following graph is known as translation.
a)
The graph of y = f(x) is shown.
The other function is y = f(x) - 4.
As it can be observed that the graph is translated from its parent function which is y = f(x) to function y = f(x) - 4.
The graph is shifted down by 4 units or translated downwards by 4 units.
b)
Here , the graph of y = g(x) is shown.
The other function is y = g(x -2)
As we can observe that the graph is translated from its parent function which is y = g(x) to function y = g(x - 2).
The graph is shifted downwards by 2 units or translated downwards by 2 units.
Therefore , the answers are :
a) The graph is translated downwards by 4 units.
b) The graph is translated downwards by 2 units.
Learn more about translation here :
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Goodbye everyone, it was good knowing all of you, it was
Answer:
so x would be 3x+24
Step-by-step explanation:
see ya
Hi, I really need help on this, please help me, no scam links.
Answer:
560 cm^3
Step-by-step explanation:
To find volume you will have to multiply all three, length, width and height of an object to determine the answer.
In this problem, 7 cm * 20 cm * 4cm = 560 cm^3
Is this graph portional
9514 1404 393
Answer:
no
Step-by-step explanation:
The graph of a proportional relation is a straight line through the origin. The origin of this graph is at lower left. The line is nowhere near that, so does not represent a proportional relation.
Pa help po pleass po
Answer:
Refer to the attachment
Answer:
Hey there,
[tex]1) 80 *\frac{3}{15} \\\frac{80*3}{15} \\\frac{240}{15} \\=16[/tex]
[tex]2)44*\frac{9}{11} \\\frac{44*9}{11} \\\frac{396}{11} \\=36[/tex]
[tex]3)62 * \frac{11}{18} \\\frac{62*11}{18} \\\frac{682}{18} \\=37.88[/tex]
Hope this helps you
Let me know if you have any other questions :-)
A giant thresher shark weighing 1250 pounds, believed to be the heaviest ever caught, was landed by fisherman Roger Nowell off the Cornish coast in November 2007. The fish was sold by auction at Newlyn Fish Market for £255. Roughly, what was the cost per pound?
Use the Distributive Property to simplify the expression. (8⋅7)+(8⋅5)
Answer:
56 + 40
Step-by-step explanation:
multiply what is in the parenthesis, don't solve all the way because the instructions say to simplify.
Genevieve spent $56.25 to fill her 15-gallon tank. How much did she pay per gallon?
A. $3.25
B. $3.50
C. $3.75
D. $4.00
I WILL GIVE YOU 100 POINTS AND THE BRAINLEST ANSWER
What percent is 29 dollars out of 122.50 and what percent of 122.50 is it?
What percent is 28.50 dollars out of 122.50 and what percent of 122.50 is it?
What percent is 33 dollars out of 122.50 and what percent of 122.50 is it?
What percent is 32 dollars out of 122.50 and what percent of 122.50 is it?
Answer:
See belowStep-by-step explanation:
What percent is 29 dollars out of 122.50 and what percent of 122.50 is it?
29/122.50*100% = 23.67%What percent is 28.50 dollars out of 122.50 and what percent of 122.50 is it?
28.50/122.50*100% = 23.27%What percent is 33 dollars out of 122.50 and what percent of 122.50 is it?
33/122.50*100% = 26.94%What percent is 32 dollars out of 122.50 and what percent of 122.50 is it?
32/122.50*100% = 26.12%Note: all results are rounded to the nearest hundredths
When x is a nonzero integer, the sum of −10 + x is sometimes negative and sometimes positive. negaive or positive, explain your answer.
Answer: if the x is negative the answer will be positive but if -10 is the only negative it would be negative. The way I remember is if their is a even amount of negatives is will be positive if theirs a odd amount it would be negative . Hope this helps :)
Step-by-step explanation: