Answer:
There is significant evidence to support that more than 3% of the population of the city got infected by the virus.
Step-by-step explanation:
x = 40 ; n = 1000
phat = x / n = 40 / 1000 = 0.04 = 4%
H0 : p = 0.3
H1 : p > 0.3
The test statistic :
(Phat - P) ÷ √(p(1 - p) / n)
1 - p = 1 - 0.3 = 0.7
(0.4 - 0.3) ÷ √(0.3(0.7) / 1000)
0.1 ÷ 0.0144913
= 6.9
Pvalue ; Using the Pvalue from Zstatistic calculator :
Pvalue < 0.00001
Reject H0, if Pvalue < α
0.00001 < α ; We reject H0 ; Hence, there is significant evidence to support that more than 3% of the population of the city got infected by the virus.
Modal 9 10 11 14 19 22 27 29 21 18 11 6
Answer:
modal is 11. it's the correct answer
giving out brainliest answer please help me out asap !! it’s due today
Answer:
180=3x+7x+10
simplify
180=10x+10
subtract 10 from both sides
170=10x
divide both sides by 10
x=17
4+4=? Trick Question :3
Answer:
8
Step-by-step explanation:
Lol hope this helps!
hmmmmm....... 10? :)
2x(27x+5) Evaluate this please
Answer:
54x^2 + 10x
Step-by-step explanation:
two girls want to share 1 1/2 granola bars so that each one gets the same amount. how much will each girl get.
Answer:
3/4
Step-by-step explanation:
Each one of them will get 3/4 or 0.75
Answer:
3/4 or 0.75
Step-by-step explanation:
1 1/2 divided by 2 is 3/4 or 0.75
Check:
3/4+3/4=6/4=1 1/2
Hope this helps! Have a nice day :)
Find the area of the pomposite figure
Answer:
1 ft
Step-by-step explanation:
if its wrong let me know
Answer:
Hello! answer: area = 649
Step-by-step explanation:
Formula for area of squares: base × height
Formula for area of triangles: base × height ÷ 2
15 × 22 = 330 330 ÷ 2 = 165 22 × 22 = 484
165 + 484 = 649 therefore the area is 649
Construct a histogram for the following data set: 11, 17, 13, 2, 22, 18, 16, 14, 16, 21, 17, 9, 9, 7, 3
to spend to much traveling and country the day she arrived the exchange rate was 1.4 country a dollars Per country B dollars if she exchange 500 country B dollars when she arrived how many country eight dollars she receive
Answer:
She receives 700 country A dollars.
Step-by-step explanation:
This question is solved by proportions, using a rule of three.
1.4 country a dollars Per country B dollar
She exchanges 500 country B dollars, so:
1.4 country A dollars - 1 country B dollar
x country A dollars - 500 country B dollars
Applying cross multiplication:
[tex]x = 1.4*500 = 700[/tex]
She receives 700 country A dollars.
Can someone help me with question 1 and 2 please
Write a division problem that has a quotient of 9/10 .
At least one of the numbers you give must be a proper fraction. The other can be a proper fraction, whole number, or improper fraction. Neither the dividend nor the divisor can be 9/10 .
Answer:
Ill answer this if you answer mine , |a+5|, if a is <-5
Step-by-step explanation:
One dice and one coin are tossed. What is probability that you will see HEAD on coin and dice will show a number
more than 4. Answer should be in reduced fraction format.
Answer:
1/6
Step-by-step explanation:
1/2 multiplied by 1/3
Nth term for quaratic sequence -7,-6,-3,2,9,18,29
Answer:
-7, -6, -3, 2, 9, 18, 29, 42, 57
Rule: + 1, + 3, + 5, + 7, + 9, + 11, + 13, + 15, + 17......................
Please helpppppp i will mark brainlisttttt!!!!!!!
Answer:
90-53=37 so I'm pretty sure ur last angle is 37 also because 90+53+37=180
Joseph is going on a trip and he needs to rent a car. He looks online and finds two companies that offer different pricing options for car rentals. Company A charges $0.25 per mile plus a $50 rental fee. Company B charges $0.45 per mile plus a $20 rental fee.
What is the maximum number of miles that Joseph can drive in order for Company B to be a better buy? The company charges only for whole number mileage (not fractional increments of miles driven).
A) 125 miles
B) 149 miles
C) 150 miles
D) 151 miles
Answer:
E.The price for travelling 150 miles is same for both company.
Step-by-step explanation:
We are given that Joseph is going on a trip and he needs to rent a car.
Company A
Charge $0.25 per mile plus $50 rental fee.
Company B charges 40.45 per mile plus $20 rental fee.
A.Total distance=150 miles
Company A
Charges for 150 miles=$37.5
Total charges=37.5+50=$87.5
Company B
Charges for 150 miles==$67.5
Total charge=20+67.5=$87.5
The price for travelling 150 miles is same for both company.
But if distance greater than 150 miles such 155 miles
Company A
Total charge=$88.75
Company B
Total charges=$89.75
Company A is better deal if Joseph more than 150 miles.
If distance 145 miles
Price form company A=$86.25
Price form company B=$85.25
Company B is better deal if Joseph travel less than 150 miles.
Hence, option E is true.
I hope this helps you <3333
Find the exact value of sin (13pi/8)
Answer:
degree 0.089
radian -0.92
Step-by-step explanation:
Determine whether the underlined numerical value is a parameter or a statistic. Explain your reasoning. for a certain movie 64.3% of the 112 members of the audience were females
Answer:
The given numerical value is a Parameter.
Step-by-step explanation:
Given - For a certain movie 64.3% of the 112 members of the audience were females.
To find - Determine whether the underlined numerical value is a parameter or a statistic.
Proof -
Given that, 64.3% of the 112 members of the audience were females.
Now,
64.3% of 112 = [tex]\frac{64.3}{100}*112[/tex] = 72.016
Since it is not a perfect number
And Human can not be in fraction
So,
The given numerical value is a Parameter.
The gas consumption of a vehicle varles directly as the distance traveled. If a
certain vehicle uses 15 gallons to travel 263 mlies, how many miles would it travel
on 9 gallions of gas?
Answer:
It would travel 157,8 miles with 9 gallons of gas.
Step-by-step explanation:
15 gallons / 263 miles
= 3 gallons / 52,6 miles
= 9 gallons / 157,8 miles.
write the equation of lines shown on the graph.
Answer: um look it up or cause i dont know how to get out of answering this cause i clicked answer so this is here my bad
Step-by-step explanation:
please help me im really struggling in math and the year is almost over im trying to get as much done as possible
Answer:
It would be 11, 23, and 33
Step-by-step explanation:
because, 2 side of the triangle should add up to greater than your other side of the triangle. And so on for each of the sides.
what happen when their is decrease in equilibrium price and increase in equilibrium quantity
Answer: An increase in demand, all other things unchanged, will cause the equilibrium price to rise; quantity supplied will increase. A decrease in demand will cause the equilibrium price to fall; quantity supplied will decrease. ... A decrease in supply will cause the equilibrium price to rise; quantity demanded will decrease.
value is 12, mean is 20, and standard deviation is 2.8
Lets find the upperlimit and lower limit of data .
Lower limit=Mean-SD=20-2.8=17.2Upper limit=Mean+SD=20+2.8=22.8Hence the value 12 isn't included in data
Step-by-step explanation:
Lower limit= Mean-Standard Deviation=17.2
Upper limit=Mean+ Standard Deviation= 22.8
Hence, 12 isn't included in data
Find the solution of the following equation whose argument is strictly between 90° and 180°.
Answer:
180degreesStep-by-step explanation:
Given the complex value
z² = -81i
z = (-81i)^1/2
Get the argument of -81i
theta = arctan(y/x)
theta = arctan(-81/0)
theta = -90degrees
theta = -π/2
Since tan is negative in the secind quadrant
theta = π - π/2
theta = π/2
According to demoivres theorem
theta = 1/2 * π/2
theta = π
theta = 180degrees
Please help urgent full explanation or short either one
Answer:
5 X 6= 30 divided by 3 = 10 -2 = 8
Step-by-step explanation:
the symbols you will insert from left to right will be X, ÷,- for the equation to make sense
Answer:
[tex]5 \times 6 \div 3 - 2[/tex]
Step-by-step explanation:
PEMDAS
first multiply 5 by 6 = 30
then divide by 3 = 10
subtract 2 = 8
What is the volume of this sphere?
Use ≈ 3.14 and round your answer to the nearest hundredth.
5mm
Answer:
1. is 5mm like the diameter or the radius and 2. the formula is V=4 /3πr^3
Step-by-Step Explanation:
A picture frame measures 5 inches wide and 7 inches long. What is the perimeter of the frame?
jiao is a chinese student visiting family in the united states. she spent $79 on dinner for her family one evening. if the exchange rate that day is UDS to CNY = 6.51, approximately how much money did she spend in CNY?
A 12
B 125
C 495
D 857
Answer:
That day Jiao spent $CNY 514.29.
Step-by-step explanation:
Given that Jiao is a Chinese student visiting family in the United States, and she spent $ 79 on dinner for her family one evening, if the exchange rate that day is UDS to CNY = 6.51, to determine approximately how much money did she spend in CNY the following calculation must be performed:
79 x 6.51 = X
514.29 = X
Therefore, that day Jiao spent $ CNY 514.29.
solve the following equation 1÷x=2
Answer:
Your answer would be x = 1/2
Step-by-step explanation:
1/x = 2
You would divide x on both sides...then they would cancel each other out.
But now you're left with...
1 = x•2
So, re-order the terms so constants are on the left
1 = 2x
Divide 2 on both sides...
Now you're left with
1/2=x or more practically it would be x = 1/2
Hope this helps!
5.
13 points
A piece of jewelry that regularly costs $120 is on sale for $96. What is the percent of decrease in the
price of the jewelry piece?
A 15%
B 20%
C 18%
D 30%
Answer:
The answer is B
Step-by-step explanation:
Please help what’s this answer ?! And the last answer is 2/5
Answer:
F 0.45
Step-by-step explanation:
Total number of students: 15 + 8 + 27 + 10 = 60
Number of students who took theater: 27
part = 27/60 = 0.45 = 45%
Answer: F 0.45
Answer:
I'm answering for your last question....it wouldn't let me post under the one that I had to
anyways your answer is d
What is the volume of the triangular prism 3.2 CM 5.4 CM 6 CM
Answer:
You must tell me which is the base , width , and height please and thank you
Step-by-step explanation:
Include a picture if you have one too