Answers
Answer:
50.27
Step-by-step explanation:
A=πr2=π·42≈50.26548
Related Questions
18 of the 47 people surveyed said they were not interested in trying a sample of a new soft drink. Find probability that a randomly selected person was interested in trying a new drink.
Answers
Answer: 0.62
Step-by-step explanation:
Total people= 47
Let A be the event of selecting person was interested in trying the new drink.
Person not interested in trying a sample of a new soft drink (nA')=18
Person interested in trying a sample of a new soft drink (nA)=47-18=29
Thus probability that a randomly selected person was interested in trying the new drink
P (A) = 29/41 = 0.6170 (or) 0.62
Thus, probability that a randomly selected person was interested in trying the new drink is 0.62.
47-18=29 people interested in the new drink
29/47=0.617
0.617*100=61.7% chance
Have a good day or night!!!
If light travels at a speed of 300,000,000 meters per second. Find the distance travelled by light
in:
1 second
Answers
Answer:
299792 km in one second
Step-by-step explanation:
I think it's helps you
The Cohens found 8 pairs of shorts with the following prices:
$10, $11, $11, $16, $16, $17, $18, $38
Which statements about the prices are true? Select all that apply.
The median is $16.
The range of the prices is $28.
The interquartile range is between $6 and $7.
If the price that is the farthest from the mean is removed, the median will change.
If the price that is farthest from the mean is removed, the mean will become larger.
Answers
Answer:
the range of the prices is $28
Step-by-step explanation:
the range is 38-10 so it’s 28
An alternative strategy for the expo function uses the following recursive definition: expo(number, exponent) = 1, when exponent = 0 = number * expo(number, exponent – 1), when exponent is odd = (expo(number, exponent // 2)) ** 2, when exponent is even Define a recursive function expo that uses this strategy, and state its computational complexity using big O notation.
Answers
Answer:
The recursive function in Python is as follows
def expo(nmber, exponent):
power = exponent
if power == 0:
return 1
if power %2 == 1:
power = power - 1
return nmber * expo(nmber, power)
else:
power = power/2
return expo(nmber, power) ** 2
The time complexity is O(log(n))
Step-by-step explanation:
See attachment for complete program where comments are used for explanation.
The Time Complexity
The function is then called power - 1 times for odd exponents or power/2 times for even exponents before it reaches the base case.
As the exponent is divided by 2, for even exponents; it means that the function tends to log(n). log(n), in this case represents the base case.
Since the function is repeated, then the time complexity is: O(log(n))
What’s the equation of line n?
Answers
Answer:
y=3x - 1
Step-by-step explanation:
the y - intercept is -1
Good Luck!!
Geometry math homework please help!!!!
Answers
Answer:
(D)
Step-by-step explanation:
please click the heart and rate excellent and brainleist to ❤☺️☻♨️♨️☻☺️❤
I need! can you help me?
Answers
Answer:
C maybe
Step-by-step explanation:
please help me with this
Answers
Answer:
Your answer is 1/10
Step-by-step explanation:
What is the approximate area, in square units, of the circle shown below?
Answers
9514 1404 393
Answer:
50.3 square units
Step-by-step explanation:
The circle has a diameter of 8 units, so a radius of 4 units. The area formula is ...
A = πr²
A ≈ 3.14159(4²) ≈ 50.265
The area of the circle is about 50.3 square units.
I need this by today!!! It’s due!! I need both questions :(
Answers
PLEASE CAN HELP ME WITH THIS, I NEED THIS NOW IF YOU CAN
Answers
Answer:
Volume=11.25
Step-by-step explanation:
How many yards of fence does Raul need to
fence in a garden that is 12ą yards long and 9
yards wide?
Don’t tell me to “download the answer” that’s bs
Answers
Answer:
Raul needs 42 yards of fence.
Step-by-step explanation:
Perimeter of a rectangle:
The perimeter of a rectangle of length l and width w is given by:
P = 2(l + w)
In this question:
The fence is rectangular.
12 yards long means that l = 12.
9 yards wide means that w = 9.
Perimeter:
P = 2(12 + 9) = 2(21) = 42
Raul needs 42 yards of fence.
An airplane is flying with a constant altitude at a speed of 450 mph in a direction 10° north of west directly towards its final destination. The airplane then encounters wind blowing at a steady 34 mph in a direction 85° north of east. If the pilot does not correct his course after encountering the wind, at what speed and in what direction (counterclockwise from east) will the plane be traveling? Speed: _____mph Direction:______ °
Answers
Answer:
your answer is gonna be 579 miles that would be your answer
The ground speed will be 454.2 mph in north east.
What is a vector?The quantity which has magnitude, direction and follows the law of vector addition is called a vector.
Given that airplane is flying with a constant altitude at a speed of 450 mph in a direction 10° north of west directly towards its final destination.
The airplane then encounters wind blowing at a steady 34 mph in a direction 85° north of east.
The component of an airplane will be
x =450 sin 10
x = -244.8
y = 450 cos 10
x = -377.5
The component of wind will be
x =34sin 85
x = -5.98
y = 34 cos 85
x = -33.4
Then the ground speed will be 454.2 mph in north east.
More about the vector link is given below.
brainly.com/question/13188123
#SPJ2
(0,7): Use the equation r^2=x^2+y^2 to find the radius of this point.
Part II: Use the fact tan theta = y/x , x not equal to zeroto find the angle for this point.
Combine your answers to write the polar coordinates of this point.
Answers
Answer: [tex](7,\frac{\pi}{2})[/tex]
Step-by-step explanation:
Given
The equation of the circle is [tex]x^2+y^2=r^2[/tex]
Point [tex](0,7)[/tex] lies on the circle
Put the value
[tex]\Rightarrow 0^2+7^2=r^2\\\Rightarrow r=7\ \text{units}[/tex]
for this point, the angle is given by
[tex]\Rightarrow \tan \theta=\dfrac{y}{x}\\\\\Rightarrow \tan \theta=\dfrac{7}{0}\rightarrow \infty[/tex]
That is [tex]\theta \rightarrow 90^{\circ}[/tex]
The polar coordinate is given by [tex](r,\theta)[/tex]
[tex]\therefore\ (7,90^{\circ})\ \text{or}\ (7,\frac{\pi}{2})[/tex]
The length of a rectangle is 5 ft longer than its width.
If the perimeter of the rectangle is 46 ft, find its area.
Answers
What is the perimeter of a rectangle with a length of 20 feet and a width of 12 feet?
A. 32 feet
B. 64 feet
C. 240 feet
D. 480 feet
Answers
12+12=24
40+24=64
ANSWER IS 64
P=2(l+w)=2·(20+12)=64ft
Can someone do this quick for me, ik giving all of my points
Answers
…..
Which is the y-intercept of the equations?
Equation A
Х 0
Y 1
1
4
2
9
3
16
Equation B
f(x) - -x+ 2
O A: -1, B: 2
O A: 2, B: 0
O A: 1, B: 2
O A: -1, B: -1
to coarch
Answers
Answer:
0, 1 would be y-intercept
Step-by-step explanation:
0, 1 is where the line crosses the x-axis
Who can tell me this answer. Cali went to school for a week and she couldnt go back to school in 8 more weeks how many weeks can she go back on friday let me see who can answer this question you can get 67 points if you get it write let me see who can answer my question.
Answers
Answer:
oof I also have the same question, that makes us 2
A random sample of 25 items is drawn from a population. The sample mean is 850 and population standard deviation is 15. Find a 90% confidence interval
Answers
Answer:
The 90% confidence interval of the mean
(846.154, 853.846)
Step-by-step explanation:
Step(i):-
Given that the sample size 'n' = 25
Given that the sample mean (x⁻) = 850
The standard deviation of the Population (σ) = 15
Level of significance = 0.10
Step(ii):-
The 90% confidence interval is determined by
[tex](x^{-} - Z_{0.05} \frac{S.D}{\sqrt{n} } , x^{-} + Z_{0.05} \frac{S.D}{\sqrt{n} } )[/tex]
[tex](850 - 1.282\frac{15}{\sqrt{25} } , 850+ 1.282 \frac{15}{\sqrt{25} })[/tex]
(850 - 3.846 , 850 + 3.846)
(846.154 , 853.846)
Final answer:-
The 90% confidence interval of the mean
(846.154, 853.846)
You roll a fair six-sided die twice. Find the probability of rolling a 2 the first time and a number greater than 1 the second time.
Answers
Answer:
for finding a 2 it would be 2/12 then for finding a number greater than 1 it would be 10/12. 16.6666...%=2/12 10/12=83.33333333...%
Step-by-step explanation:
Match each line, ray, or segment with the term that best describes it.
Answers
Answer:
Step-by-step explanation:
From the given diagram,
i. ACBD - circle
ii. AB = secant
ii. CD = diameter
iii. EC, EB, ED, GF and GH - radii
iv. D, C, H and F - points of tangency
v. ACB - segment
vi. CBD - semicircle
vii. CBE, BDE and FHG - sectors
vii. E and G - centers of the given circles
viii. BH and DF - tangents
ix. DAB and HF - major segments
x. EDF, EBH, GHB - right angles
xi. DA, AC, CB, BD and FH - minor arcs
7 boys to 2 girls is equivalent to which ratio? 21 boys to 6 girls 14 boys to 5 girls 21 boys to 9 girls 42 boys to 12 girls
Answers
7:2 = 21:6
This is because 7:6 is a simplified form of 21:6
Hope this helps; have a great day!
Between what two numbers would 9 be located on a number line?
A. 8 and 10
B. 7 and 8
C. 9 and 10
D. 10 and 11
Answers
[tex]it \: is \: simple \\ between \: 8 \: \: \: 10[/tex]
Answer:
A
Step-by-step explanation:
the between of two bumber of 9 is 8 & 10 8<9<10
Find the distance between the two points.
Answers
Answer:
9.219544
Step-by-step explanation:
Add one set of parentheses to the expression 2x² + 4 - 5 so that the value of the expression is 75 when x = 6
Answers
Answer:
answer is +4...
Step-by-step explanation:
when x=6, the expression becomes
2(6)^2+ 4-5
2(36)+(-1)
72-1=71
therefore 71+4 gives 75
equation on
1) -6 = 9
2) 7a - 4 = = 3a + 4
3) 6y + 5 = 3y + 6
4) 5b + 2 = 3b + 10
please help
Answers
Answer:
I know you are 100 percent Clear.
In how many ways can a committee of three men and three woman be formed from a group of ten men and nine woman?
A committee of three men and three woman can be formed from a group of ten men and nine woman in _________ different ways.
Answers
Answer:
multiply ur options, so 9x10= 90
Step-by-step explanation:
What is the solution for the system of equations? y=2x+7y=−4x−5 Question 1 options: (−2, 1) (1, −2) (3, −2) (−2, 3)
Answers
Answer:
Answer Below \/
Step-by-step explanation:
Answer:
(-2,3)
Step-by-step explanation:
A plane traveled 588 miles each way to Athens and back. The trip there was with the wind. It
took 7 hours. The trip back was into the wind. The trip back took 14 hours. Find the speed of
the plane in still air and the speed of the wind.
Answers
Answer:
The wind speed is 21 miles per hour, and the speed of the plane in still air is 63 miles per hour.
Step-by-step explanation:
Since a plane traveled 588 miles each way to Athens and back, and the trip there was with the wind and took 7 hours, while the trip back was into the wind and took 14 hours, to find the speed of the plane in still air and the speed of the wind, the following calculations must be performed:
Downwind travel = 588/7 = 84 miles per hour
Headwind travel = 588/14 = 42 miles per hour
84 - 42 = 42/2 = 21
84 - 21 = 63
Therefore, the wind speed is 21 miles per hour, and the speed of the plane in still air is 63 miles per hour.