Answer:
52 cards / 4 suits = 13 cards of each suit.
Theoretically picking a heart would be 13/52 = 1/4 probability.
Experimentally she picked 15 hearts out of 80 total tries. for a 15/80 = 3/16 probability, which is less than the theoretical probability.
1/4 - 3/16 = 1/16
The answer is A.
Step-by-step explanation:
The right answer is A - The theoretical probability of choosing a heart is StartFraction 1 over 16 EndFraction greater than the experimental probability of choosing a heart
What is the volume of a square pyramid with base edges of 18 cm and a slant height of 15 cm?
Answer:
the volume of the square pyramid is 2430 cubic cm
Answer:
1296 cm³
Step-by-step explanation:
V = a² x [√s²- (a/2)²] / 3
a = 18 cm
s = 15 cm
V = 18² x [√15²-(18/2)²] / 3 = 18² x [√225-81] / 3
V = 324 x (√144/3) = 1296 cm³
pls help me get this please
Answer:
for the first one is 112 that's all I can help you I'm sorry (◞‸◟ㆀ)
Which fractions are equal to 0.6
1 over 6,60 over 100,1 over 60,6 over 10
please guys correct answers!
Answer:
4t*4t*4t*4t*4t
Step-by-step explanation:
SHL T Teleperformance
each interaction matters
Choose the correct option.
You arrived at your office at 9:35 AM. You left your office at 6:05 PM. How many hours did
spend in the office?
Answer:
8 hours 30 minutes
Step-by-step explanation:
6:05 pm - 9:35 am =
= 18:05 - 9:35
= 17:65 - 9:35
= 8:30
Answer:
Citcitdutditdutdtuditditdtiditf this is what is adjective 6hftuiouhvcutxyrzyt
Step-by-step explanation:
huuugggguytzurzt8st8s8ts9td96097g79t8dtrudutfitf8tfitftid8tdtdtudutd
7(4y)Simplified expression
answer:28y
this is an algebraic expression.inorder to simpify, we have to open the bracket
in mathematics, bracket means multiplication
therefore, this expression can also be written as
\(7\times4y=28y\)In Fig. 6.39, sides QP and RQ of ΔPQR are produced to points S and T respectively. If ∠SPR = 135° and ∠PQT = 110°, find ∠PRQ.
\( \: \)
\( \leadsto \sf{ \pink{Pls \: give \: me \: correct \: answer!!}}\)
Thank u :)
\( \huge{↬ \boxed{ \sf{ \pink{A\green{n \blue{s \color{yellow}w \red{e \orange{r}}}}}}}}\)
Given: ∠SPR = 135° and ∠PQT = 110°To find: ∠PRQ\( \leadsto\)According to Angle sum property of a triangle , sum of the interior angles of a triangle is 180°.
➱ ∠SPR + ∠QPR = 180° [Linear pair]
➱ 135° + ∠QPR = 180°
➱ ∠QPR = 180° - 135°
➱ ∠QPR = 45°.....(i)
➱ ∠PQT + ∠PQR = 180° [Linear pair]
➱ 110° + ∠PQR = 180°
➱ ∠PQR = 180° - 110°
➱ ∠PQR = 70°.....(ii)
Now,➛ ∠PQR + ∠QPR + ∠PRQ = 180° [Angle sum property of a triangle]
➱ 70°+ 45° + ∠PRQ = 180° [from (i) and (ii)]
➱ ∠PRQ = 180° - 115°
➥ ∠PRQ = 65°
hope it's help u!! :D
2) There are 112 male and 78 females working at
a hospital. What percentage of the hospitals
workforce is female?
22%
32%
38%
41%
78%
Answer:
41%
Step-by-step explanation:
Start by adding up all hospital workers: 112 + 78 = 190 (total)
To find the percentage of those total workers that are female, divide the amount of female workers by the total: 78/190 = 0.41 = 41%
Answer:
41%
Step-by-step explanation:
Add the number of men and women to get the total number: 190. The number of women, 78, so divide 78 by 190 (78/190) to get .4105. Then multiply by 100 to convert it to a percentage and you have 41%.
how much is 69219 left to reach 100000
Answer:
100000 - 69219 = 30781
Big number
Step-by-step explanation:
Is that what you are asking?
The mean is 47.1 and the standard deviation is 9.5 for a population. Using the Central Limit Theorem, what is the standard deviation of the distribution of sample means for samples of size 60
Answer:
The standard deviation of the distribution of sample means for samples of size 60 is of 1.2264.
Step-by-step explanation:
Central Limit Theorem
The Central Limit Theorem establishes that, for a normally distributed random variable X, with mean \(\mu\) and standard deviation \(\sigma\), the sampling distribution of the sample means with size n can be approximated to a normal distribution with mean \(\mu\) and standard deviation \(s = \frac{\sigma}{\sqrt{n}}\).
For a skewed variable, the Central Limit Theorem can also be applied, as long as n is at least 30.
Standard deviation is 9.5 for a population.
This means that \(\sigma = 9.5\)
Sample of 60:
This means that \(n = 60\)
What is the standard deviation of the distribution of sample means for samples of size 60?
\(s = \frac{\sigma}{\sqrt{n}} = \frac{9.5}{\sqrt{60}} = 1.2264\)
The standard deviation of the distribution of sample means for samples of size 60 is of 1.2264.
INTERMEDIATE
3 unknown bags of gold with 3 ounces of lead balances with 1 unknown bag of gold
and 4 ounces of lead weights. How much gold is in each bag?
Answer:
I don't know what to do with it but I don't
Step-by-step explanation:
hahahaha
2 squared all divided by 4
please
Answer:
think answer is 0.5 each
What are two multiples of 6 between 40 and 50
Answer:
The two multiples are 42 and 48
6 times 7 is 42
and 6 times 8 is 48
NEED HELP!! I"LL GIVE YOU BRAINLIEST!! Find the value of b. a = 3 and c =12
Answer: b = 11.62
Step-by-step explanation:
We can use this formula to solve for b:
\(b^{2} =\) \(\sqrt{c^{2}-a^{2} }\)
\(b^{2} =\) \(\sqrt{12^{2}-3^2 }\)
\(b^2= \sqrt{144-9}\)
= 11.61895004
We can round that to 11.62.
Hope this helped!
  help needed pls
The population of mosquitoes in a certain area increases at a rate proportional to the current population, and in the absence of other factors, the population doubles each week. There are 200,000 mosquitoes in the area initially, and predators (e.g. birds, bats) eat 20,000 mosquitoes/day. Determine the population of mosquitoes in the area at any given time.
So far, I have used the equation, P = P0 e^-kt The population of mosquitoes in a certain area inc where P0=200,000 and P(7)=400,000 (I figured time should be measured in days since you are given the number of mosquitoes eaten per day) to solve for k:
400,000 = 200,00 e^-k(7) >> K=-ln(2)/7=-.099
Using that, I figured I should put that into the differential equation (change in population = birthrate - deathrate)
dp/dt = kP - 20,00t ---> dp/dt = -099P - 20,000t
I thought I knew how to solve this and everything, but once I got an answer and plugged in different times, the model says the population decreases, which doesn't seem to make sense. So please check my reasoning up to this point and show the solution so I can check mine.
The equation you used is correct, but the differential equation does not include the growth rate. The growth rate is proportional to the current population, so the differential equation should look like this: dp/dt = kP - 20,000t
dp/dt = kP - 20,000t , Where k is the growth rate. To solve this equation, we can use the separation of variables: dp/P = kdt - 20,000tdt
Integrating both sides, we get:
ln|P| = kt - 20,000t^2/2 + C, Where C is the integration constant. To find C, we can use the initial population of 200,000:
ln|200,000| = -0.099t - 20,000t^2/2 + C
=>C = ln|200,000| + 0.099t + 20,000t^2/2 .Therefore, the population of mosquitoes at any given time t is:
P = 200,000e^(-0.099t - 20,000t^2/2 + ln|200,000| + 0.099t + 20,000t^2/2) = 200,000e^(ln|200,000|) = 200,000
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An object in the shape of a rectangular prism has a length of 9 inches, a width of 5 inches, and a height of 4 inches. The object's density is 11.1 grams per cubic centimeter. Find the mass of the object to the nearest gram.
Answer:
32.741 kg---------------------------
Mass is the product of the volume and density and the volume of the rectangular prism is the product of its three dimensions.
Find the volume first:
V = 9*5*4 = 180 in³Convert volume to cm³, taking 2.54 cm per in:
180*(2.54)³ = 2949.67152 cm³Find the mass:
Mass = 11.1*2949.67152 = 32741.353872 g ≈ 32.741 kg (rounded)help help help help help help help
How many more unit tiles need to be added to the expression x^2+4x+3 in order to form a perfect square trinomial
Given the expression x^2+4x+3, we need 1 more tile to form perfect trinomial.
Perfect squareA square number is an integer that is the square of another integer, also referred to as a perfect square. It comes from multiplying one integer by another.
Given the expression to convert to perfect square trinomial
x^2+4x+3
In order to convert the expression into the perfect square, we need to rearrange the expression.
x^2+(2x+2x)+3
Expand the expression (x+2)^2
(x+2)^2 = x^2 + 2(2x) + 2(2)
(x+2)^2 = x^2 + 4 + 4x
(x+2)^2 = x^2 + 4x + 4
Subtract he constant terms from each other.
Difference = 4 - 3
Difference = 1
We need to add 1 more tile to the expression x^2+4x+3 in order to form a perfect square trinomial
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Sebastian is 3 years older than twice Amy's age. Sebastian is 33 years old. How old is Amy?
Answer:
15 years old
Step-by-step explanation:
You would have to create a equation. 2x+3=33, 2x=30, x=15.
a machinist is making a gear that will pull a chain at 60 ft/min when rotating at 40 rev/min. What should the radius of the gear be? Answer in inches.
The radius of the gear should be approximately 2.8644 inches.It is important to note that when making calculations involving units, we need to make sure that all units are consistent and convert them when necessary. In this case, we converted the answer from feet to inches to match the given unit.
To find the radius of the gear that will pull a chain at 60 ft/min when rotating at 40 rev/min, we can use the formula:
chain speed = 2 x pi x radius x rotational speed
where pi is a mathematical constant approximately equal to 3.14.
We know that the chain speed is 60 ft/min and the rotational speed is 40 rev/min, so we can substitute those values into the formula:
60 = 2 x 3.14 x radius x 40
Simplifying the equation, we get:
radius = 60 / (2 x 3.14 x 40)
radius = 0.2387 ft
To convert feet to inches, we can multiply the answer by 12:
radius = 0.2387 x 12 = 2.8644 inches.
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Wei wants to prove that the segment joining midpoints of two sides of a
triangle is parallel to the third side.
Select the appropriate rephrased statement for Wei's proof.
Now we know PR∥QX , according to construction with transversal line TX.
∠PTS=∠QXS (Alternate angle)
In △PTS and △QSX
∠PTS=∠QXS (Alternate angle)
∠PST=∠QSX(vertically opposite angles)
PS=SQ(S is mid point of PQ)
△PTS≅△QSX(AAS rule)
So, TP=QX(CPCT)
As we know, TP=TR (T is midpoint)
Hence, TR=QX
Now, in quadrilateral TSQR
TS∥QR
Hence proved.
Know more about triangle,
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Select the correct answer.
Each statement describes a transformation of the graph of f(x) = x. Which statement correctly describes the graph of g(x) if g(x) = f(x - 11)?
A. It is the graph of f(x) where the slope is increased by 11.
It is the graph of f(x) translated 11 units to the left.
It is the graph of f(x) translated 11 units up.
It is the graph of f(x) translated 11 units to the right.
B.
C.
OD.
The correct answer is C. It is the graph of f(x) translated 11 units to the left.
The correct answer is:
C. It is the graph of f(x) translated 11 units to the left.
When we have a function of the form g(x) = f(x - a), it represents a horizontal translation of the graph of f(x) by 'a' units to the right if 'a' is positive and to the left if 'a' is negative.
In this case, g(x) = f(x - 11), which means that the graph of f(x) is being translated 11 units to the right. However, the answer options do not include this specific transformation. The closest option is option C, which states that the graph of g(x) is translated 11 units to the left.
The graph of f(x) = x is a straight line passing through the origin with a slope of 1. If we apply the transformation g(x) = f(x - 11), it means that we are shifting the graph of f(x) 11 units to the right. This results in a new function g(x) that has the same shape and slope as f(x), but is shifted to the right by 11 units.
Therefore, the correct answer is C. It is the graph of f(x) translated 11 units to the left.
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I NEED REAL HELP MATH HELP NEEDED
Answer:
The right answer is the last one! :)
Step-by-step explanation:
Answer: It’s 2, the solution is correct
Step-by-step explanation:
James runs 400 metres a day. He runs for five days.
What is the total distance run in kilometres
Answer:
2km
Step-by-step explanation:
400*5=2000m
2000/1000=2km
need help with this asap
There is no relationship between the number of hours cycled and the number of hours worked (Option D).
What is a scatterplot?A scatterplot is a graph that is used to show the association between two variables. The relationship between the variables is shown by the use of line of best fit.
From the scatterplot shown, we can conclude that there is no relationship between the number of hours cycled and the number of hours worked (Option D).
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A new variety of turf grass developed for use on golf courses is claimed to have a germination rate of 85%. To evaluate this claim, 100 seeds are randomly selected and planted in a greenhouse so that they are exposed to identical conditions. If the germination rate is 85% as claimed. What represents the approximate probability that 92 seeds or more will germinate?
Answer:
Probability = 0.01531
Step-by-step explanation:
Prob (Getting 92 out of 100 germinated seeds) follows binomial probability distribution.
N = Number of seeds = 100. r = Number of success (germination) = 92
r = No. Success = Seed germination, Prob (Success) ie P = 85% = 0.85 , Prob (non success ie non germination) ie Q = 1 - 85% = 15% = 0.15
Probability = N c r . (P)^r . (Q)^(n-r)
= 100c92 (0.85)^92 (0.15)^8
= 186087894300 (0.000000321026708) (0.000000256289062)
= 0.01531 {Approx}
what are the classification of safety signs? (1-7)
Answer:
Mandatory, prohibition, warning, danger, fire, emergency information, and limitation are the seven types of safety signage.
Step-by-step explanation:
I NEED HELP WITH THIS PLSSS LOTS OF POINTS
Answer:
Step-by-step explanation:
The width of a rectangle is 2cm more than 8 times the length. The perimeter is 68cm. What are the width and length of the rectangle?
Answer:
Length = 3.56cm
Width = 30.48cm
Step-by-step explanation:
We can use the following equation ty o solve
\(68 = 2(2 + 8x) + 2x\)
Length = x
Width = 2 + 8x
Reduce
68 = 4 + 18x
x = 3.56
We then plug x in width equation and get 30.48