Answer:
Area= 50.24
Step-by-step explanation:
Radius is half of the Diameter. 8/2= 4
r=4
3.14*4^2
3.14*16=50.24
What is the measure of x?
Please help me.
Step-by-step explanation:
111°+122°+103°+90°+x=540°(sum of angle of pentagon)
426+x=540°
x=540-426
x=114°
hope it helps.
Multiply -4x^-2y(2yx^3+6xy^3-3y^3x4)
Answer:
below here hopes it helps!
Step-by-step explanation:
For each of the questions below, a histogram is described. Indicate in each case whether, in view of the Central Limit Theorem, you can be confident that the histogram would look like approximately a bell-shaped (normal) curve, and give a brief explanation why (one sentence is probably sufficient). There are no data for these questions, so you will not need to use the computer to answer these questions.
a. A police department records the number of 911 calls made each day of the year, and the 365 values are plotted in a histogram.
b. The day before an election, fifty different polling organizations each sample 500 people and record the percentage who say they will vote for the Democratic candidate. The 50 values are plotted in a histogram. The fifty polling organizations also record the average age of the 500 people in their sample, and the 50 averages are plotted in a histogram.
c. One hundred batteries are tested, and the lifetimes of the batteries are plotted in a histogram.
d. Two hundred students in a statistics class each flip a coin 50 times and record the number of heads. The numbers of heads are plotted in a histogram. Two hundred students in a statistics each roll a die 40 times and record the sum of the numbers they got on the 40 rolls. They make a histogram of the 200 sums.
e. One thousand randomly chosen people report their annual salaries, and these salaries are plotted in a histogram.
Solution :
a). This histogram is not a bell shaped.
Here we cannot use the theorem of the central limit as the histogram is being plotted by using 365 samples data values of the one sample.
b). This histogram may be bell shaped approximately since the sample size is large.
Here there are 50 sample each having a size of 500 and there is 50 sample proportions. The histogram shows sampling distribution of the sample proportion. Thus the central limit theorem can be used.
The histogram is approximately bell shaped as there is 50 samples of each having 500 size and an average of 50. Thus the central limit theorem can be used.
c). The histogram is not a bell shaped.
In this case central limit theorem cannot be used as the histogram is plotted by using 100 sample data values of one sample.
d). The histogram is a bell shaped since the sample size is large.
In this case 200 samples of each having a size of 50 and a data values of 50. The histogram here shows a sampling distribution of the sample proportion. Thus the central limit theorem can be used.
In the second also the histogram is of bell shaped as the sample size is large.
There are 200 samples of each sample having a size of 40 and they have 40 data values , i.e. sum of rolls.
e). It is not a bell shaped.
The histogram here is plotted using 100 sample data values having one sample. Therefore we cannot use the central limit theorem.
the product of seven and m
answer:
7m
step-by-step explanation:
in case of a variable being multiplied to a number, we just put the number and the variable without putting any operation between themFind the pattern. What numbers come next?
61, 54, 47, 40,
Answer:
33
Step-by-step explanation:
It's decreasing by 7
The relation is the descending the series by 7 and the next term is 33.
We have to determine, find the pattern and what numbers come next
We have given that, 61, 54, 47, 40.
What is the series?
A series is, roughly speaking, a description of the operation of adding infinitely many quantities, one after the other.
61-54=7
54-47=7
47-40=7
So the next term is
40-7=33
Therefore the relation is the descending the series by 7 and the next term is 33.
To learn more about the series visit:
https://brainly.com/question/25870256
Question is down below
⬇️
This is urgent what is the answer to this hint: pemdas(45-5)÷5+6²
Answer:
[tex] (45 - 5) \div 5 + {6}^{2} \\ 40 \div 5 + {6}^{2} \\ 8 + {6}^{2} \\ 8 + 36 \\ 44 \: answer [/tex]
i’ll mark brainlist !! pls help
Answer:
so hard oh my god
Step-by-step explanation:
I don't know sorry I'm not good in math I'm bobo in math
help me pliss
which one is supposed to be correct?
Put –4/5 1/2 and –0.45 in order from least to greatest.
Answer:
-0.45, -4/5, 1/2
Step-by-step explanation:
Yur welcome boo!
I need help please i really need it (14 points)
Answer:
point b
Step-by-step explanation
piont b can go to piont e
Answer:
B
Step-by-step explanation:
Go through each point and see which ones works:
A local electronics store, CDs were on sale. Some were priced at $14.00 and some at $12.00. Sabrina bought 9 CDs and spent a Total of $114.00 how many $12.00 CDs did she purchase
Answer:
Sabrina purchased 6 $ 12 CDs.
Step-by-step explanation:
A bag of flour weighs 2.5 kilograms. Of 1 bag makes 5 loaves of bread, how many grams of flour are needed for each loaf
Answer:
500 grams
Step-by-step explanation:
2.5 kg = 5 loaves
1 loaf = 2.5/5 = 0.5 kg
0.5 kg = 500 grams
What decimal is less than 1/5
0.25
0.50
0.21
0.15
0.15 is less than 1/5
24 = 2w - 10 Solve for w, simplify your answer as much as possible
Answer:
the answer is 17
Step-by-step explanation:
2w-10=24
10+24=34
34/2=17
so w=17
Answer:
w=17
Step-by-step explanation:
A plane was cruising at a height of 31,000 feet. Then it descended at a rate of 550 feet per minute. What height will the plane be at after 10 minutes?
Pls help
Answer:
25,500
Step-by-step explanation:
550 * 10 = 5500
31,000 - 5500 = 25,500
verify the identity (sin 0 - cos 0)2 = 1 - sin 20 Begin by working with the left side Square
Answer:
Step-by-step explanation:
Will mark brainliest!
What is the end behavior of this radical function?
f(x)= -23Vx+7
A. As x approaches positive infinity, F(x) approaches negative infinity.
B. As x approaches positive infinity, f(x) approaches positive infinity.
C. As x approaches negative infinity, f(x) approaches 0.
D. As x approaches negative infinity, fx) approaches negative infinity.
Answer:
A. As x approaches positive infinity, F(x) approaches negative infinity.
Step-by-step explanation:
Put the equation in a graphing calculater, as x value increased, the function became increasingly negative, hence A.
Factor the following: 7a+ 3
Answer:
It's not factorable.
Step-by-step explanation:
PLEASE HELP IN ONE MINUTE WILL MARK BRAINLIST
Answer:
D
Step-by-step explanation:
Write a formula for rrr in terms of \thetaθtheta for the following figure.
Answer: r = 4cm/θ
Step-by-step explanation:
For a circle of radius R, the perimeter is:
P = 2*pi*R
Now, if we have an arc with an angle θ, the cord of this arc is:
C = (θ/2*pi)*2*pi*R
Where you can see that if θ = 2*pi (this is the full circle) we have the perimeter of the circle.
In this case, we can see that the cord for an angle θ is 4cm, then:
C = 4cm = (θ/2*pi)*2*pi*r = θ*r
Now we can solve this for r:
r = 4cm/θ
Answer:
4/Ф
Step-by-step explanation:
Michael has 12% of his paycheck
automatically deposited to his savings
account. His last paycheck was $2165.00
How much money was deposited to
Michael's savings account?
If Michael Saves this amount for
24 consecutive pay periods, how much
will he have saved total?
Answer:
259.80 dollars was deposited from his last pay check and he will have saved 6235.20 dollars in total
Step-by-step explanation:
PLEASE HELP WILL MARK BRAINLIEST Determine the value of h. Round your answer to the nearest hundredth if necessary.
answers
14.44
0.14
6.92
9
Answer:
Answer :-Here,
At first we know that parallel line cut transversal lines. They make them in a proportion.
h/10 = 9/13
h = 10 × 9/13
h = 90/13
h = 6.92
[tex] \\ [/tex]
Answer:
6.92
Step-by-step explanation:
QT/QU = TR/US
13/10 = 9/h
Cross multiply to find the answer.
The point (8,1) is on the line. (Remember the line continues in both directions forever.)
True
O False
the answear us true im preety sure
Hellpppppppppppppppppppp
Answer:
6
Step-by-step explanation:
I just learned about this yesterday. The line inside of the box is the median. The left side of the box, on the number 2, is the lower quartile. The dot on the line to the left, outside of the box, is above the smallest value. The right side of the box is the upper quartile. The line outside of the box on the right is the highest value. Hope this helps!
Please help due tomorrow and i have to go to bed
Answer:
B & D
Step-by-step explanation:
-3 (0.15 - 0.2 + 0.25p) = - 3 * 0.15 - (-3) * 0.2 + (-3) * 0.25p
-0.45 + 0.6 - 0.75p = 0.15 - 0.75p = -3 (-0.05 + 0.25p}
Consider the angle shown below with an initial ray pointing in the 3-o'clock direction that measures θ radians (where 0≤θ<2π). The terminal point is (1.33,−2).
What is the angle's measure (in radians)?
θ=
Answer:
5.3 or (4217pi/2500)
Step-by-step explanation:
Create a right triangle with the coordinates provided.
We can ignore the negative sign and create the equation
[tex]tan(x) = \frac{1.33}{2} [/tex]
x = 33.624
We then add 270 and x together because the coordinates are in the 4th quadrant.
angle = 303.624
To convert to radians, we multiply this number by pi/180
5.3 radians
The measure of the angle is approximately [tex]1.687\pi[/tex] radians.
By trigonometry we can determine the direction of the terminal ray ([tex]\theta[/tex]), in radians, by the following inverse trigonometric function:
[tex]\theta = \tan^{-1}\frac{y}{x}[/tex] (1)
Since [tex]x > 0[/tex], [tex]y <0[/tex] and angle is in standard position, the angle must have a direction greater than [tex]\frac{3\pi}{2}[/tex] radians and less than [tex]2\pi[/tex] radians. Hence, we conclude that direction of the angle is:
[tex]\theta = \tan^{-1} \left(\frac{-2}{1.33} \right)[/tex]
[tex]\theta \approx 1.687\pi\, rad[/tex]
The measure of the angle is approximately [tex]1.687\pi[/tex] radians.
We kindly invite to check this question on angles: https://brainly.com/question/18060525
Solve: x/x+2 + 5/x-3 = 25/x2-x-6
Answer:
x1=3 x2=-5
BUT x1=3 is not an answer because it doesnt respects the range on the original ecuation, so x2=-5 is the solution
Step-by-step explanation:
Solve the equation for x by combining like terms first.
3x-10+5x=2x-13
Step-by-step explanation:
[tex] \tt{3x - 10 + 5x = 2x - 13}[/tex]
Combine like terms on left hand side. Like terms are those which have the same base. Only coefficients of like terms can be added or subtracted.
⟼ [tex] \tt{3x + 5x - 10 = 2x - 13}[/tex]
⟼ [tex] \tt{8x - 10 = 2x - 13}[/tex]
Transpose 2x to left hand side and change it's sign.
Similarly , Transpose 10 to right hand side and change it's sign.
⟼ [tex] \tt{8x - 2x = - 13 + 10}[/tex]
⟼ [tex] \tt{6x = - 3}[/tex]
Divide both sides by 6
⟼ [tex] \tt{ \frac{6x}{6} = - \frac{3}{6}} [/tex]
⟼ [tex] \tt{x = - \frac{1}{2}} [/tex]
[tex] \red{ \boxed{ \boxed{ \tt{Our \: final \: answer : \boxed{ \underline{ \tt {x = - \frac{1}{2}}}}}}} }[/tex]
Hope I helped ! ♡
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A migrating bird flies 390 miles in 15 hours. How many miles does it fly in 4 hours?
Answer:
104
Step-by-step explanation:
390/15=26
26 times 4 is 104