On October 12, 2020, the number of new cases of Covid 19 in Milwaukee was 235. On Oct. 22, 2020, the number of new cases in Milwaukee was 395.
a. Create an exponential model for new cases in terms of days.
b. Based on your model, what would be the number of new cases on Oct. 31, 2020?
c. The actual number of new cases on Oct. 31, 2020, was 1043. How well does this fit your model?
Answers
a. To create an exponential model for new cases in terms of days, we can use the formula: y = a * b ^ x, where y is the number of new cases, x is the number of days since the first observation, and a and b are constants that we need to determine. Using the two data points given, we can set up a system of equations:
235 = a * b ^ 0
395 = a * b ^ 10
Solving for a and b, we get:
a = 235
b = (395/235)^(1/10) = 1.067
Therefore, the exponential model for new cases in Milwaukee is:
y = 235 * 1.067 ^ x
b. To find the number of new cases on Oct. 31, 2020, we need to plug in x = 19 (since Oct. 31 is 19 days after Oct. 12) into the model:
y = 235 * 1.067 ^ 19 = 1018.5
Therefore, based on the exponential model, we would expect around 1019 new cases on Oct. 31, 2020.
c. The actual number of new cases on Oct. 31, 2020, was 1043. This is higher than the predicted value of 1019, but not by a huge margin. Overall, the model seems to fit the data reasonably well, especially considering that there are many factors that can affect the number of new cases in a given area, and that the model is based on only two data points. However, it is worth noting that the exponential model assumes that the growth rate of new cases remains constant over time, which may not be a realistic assumption in the long run.
Related Questions
Each of the 9 parking lots at an automobile plant holds the same number of new cars. The lots are full. If there are 431 cars in the lots, about how many cars are in each lot? Show how you estimated.
Answers
Answer:
50, I just took a number that was the closet to this and divided it by 9
(450/9=50)
hi my name is q tip and I got feet
Answers
Answer:
Da mn really that's sick man
Step-by-step explanation:
I've got feet too ツ
Find the measure of the missing angles.
Answers
Answer:
d = 103
e = 22
f = 55
Step-by-step explanation:
Answer: d= 103 e= 22 f=55
Step-by-step explanation: (103-degree angles and d) (f and unknown angle) (e and 22 angle) are all vertical angles meaning they are congruent.
e=22 + 103 + angle f= 180 so 103+22= 125 180-125= 55 f=55
The price of a train ticket consists of an initial fee of $5 plus a fee of $2.75per stop
Answers
The inequality that represents this scenario is:
\(5 + 2.75x \le 21\)
The complete question describes the use of word problems to represent inequalities. The $21 means that there is a limit to the number of stops she can take using the train.
From the complete question, we have the following parameters:
Initial Fee = $5
Rate per stop = $2.75
Amount = $21
The inequality that represents the scenario is calculated using:
Initial Fee + Rate * Number of stops <= Amount
We use <= because the total charges must not exceed the amount.
Let the number of stops be x.
The above formula becomes
\(5 + 2.75 * x \le 21\)
\(5 + 2.75x \le 21\)
Hence, the inequality that represents this scenario is:
\(5 + 2.75x \le 21\)
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Answer:
a and 5
Step-by-step explanation:
What is the circumference of this circle? (Use 3.14 for pi)
Answers
14 x 3.14= 43.96cm
Which number doesn't share the same pattern as
2,20, 4,8,300
Answers
The director of a hospital pharmacy chooses at random 100 people age 60 or older from each of three surrounding counties to ask their opinions of a new prescription drug program.
Answers
The sampling technique used is given as follows:
Stratified.
How are samples classified?Samples may be classified as:
A convenient sample is drawn from a conveniently available pool of options.A random sample is equivalent to placing all options into a hat and taking some of them.In a systematic sample, every kth element of the sample is taken.Cluster sampling divides population into groups, called clusters, and each element of the group is surveyed.Stratified sampling also divides the population into groups. However, an equal proportion of each group is surveyed.For this problem, the population is divided into groups according to the counties, and an equal amount of each county was surveyed, hence stratified sampling was used.
Missing InformationThe problem asks for the sampling technique used.
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A parabola opening up or
equation in vertex form.
down has vertex (-1, 4) and passes through (-2, 17). Write its equation in vertex form.
Answers
Equation of parabola in vertex form is 13x² + 26x + 17
Define Parabola
A symmetrical open plane curve created when a cone and a plane that runs perpendicular to its side collide. Ideally, a projectile traveling under the pull of gravity will travel along a curve similar to this one.
Given,
vertex (h,k) = (-1, 4)
points (x,y) = (-2, 17)
We know, The equation in vertex form is
y = a(x - h)² + k
put the (h,k) values,
y = a(x - (-1))² + 4
y = a(x + 1)² + 4 --------- eq(i)
Next, find the value of 'a' by plug in the points of (x, y) in eq(i)
y = a(x + 1)² + 4
⇒17 = a(-2 + 1)² + 4
⇒17 = a(-1)² + 4
⇒17 = a + 4
⇒a = 13
Now, substitute 'a' value in eq(i) to find the equation of parabola
y = a(x + 1)² + 4
⇒ y = 13(x + 1)² + 4
⇒ y = 13(x² + 1 + 2x) + 4
⇒ y = 13x² + 13 + 26x + 4
⇒ y = 13x² + 26x + 17
Therefore, equation of parabola in vertex form is 13x² + 26x + 17
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4x(x + 1) − (3x − 8)(x + 4)
Answers
The simplified form of the expression 4x(x + 1) − (3x − 8)(x + 4) is -3x^2 - 4x - 32.
To simplify the expression 4x(x + 1) − (3x − 8)(x + 4), we can expand the parentheses and combine like terms.
Expanding the first term, we get 4x^2 + 4x.
Expanding the second term, we have -(3x)(x) - (3x)(4) - (-8)(x) - (-8)(4), which simplifies to -3x^2 - 12x - (-8x) - (-32), further simplifying to -3x^2 - 12x + 8x - 32.
Combining like terms, we obtain -3x^2 - 4x - 32.
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Select whether each of these factors was a reason for or against American neutrality. US trade with Europe was worth almost one billion dollars. for against Intro
________________________
Sunny ko behan mil gayi sonali ✨
Answers
The United States' decision to remain neutral was motivated by its over $1 billion in annual trade with Europe.
Why did American neutrality benefit from commerce with Europe?Early 20th-century American trade with Europe helped the US remain neutral by enabling it to maintain business ties with both the Allied and Central Powers.
The US was able to avoid taking a political stance and maintain its neutral status by supplying goods to both sides of the conflict. Additionally, trade helped the US maintain its economic stability because it would have been detrimental to the nation's economy to break off trade with one party.
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Define associative property
Answers
Answer:
the way in which factors are grouped in a multiplication problem does not change the product.
Step-by-step explanation:
Point C is graphed at (-4, -10). What is the coordinate of C' after a reflection over the y-axis .
Answers
Answer:
(4, -10)
Step-by-step explanation:
A reflection over the y-axis results in a reversing of the x-coordinate.
Respectively, a reflection over the x-axis results in a reversing of the y-coordinate
Answer:
4,-10
Step-by-step explanation:
Reflection Over The Y Axis Would Change The Point -4 To 4 But The Y Axis Point Wouldn't Change
Allyson and Abby were throwing the football. Allyson threw it 38 feet and Abby threw it 46 feet. How many YARDS did they throw it together
Answers
Answer:
28 yards
Step-by-step explanation:
38+46=84
1 yard = 3 feet
1/3=x/84
84/3=24
help, urgently pls, check out my profile i need help with pls
Answers
Answer:
Perimeter = 132.2 ft
Area = 766.9 ft^2
Step-by-step explanation:
Perimeter of Circle : P = 2 * pi * r
Perimeter of Rectangle : P = 2*l + 2*w
Perimeter of Circle : P = 2 * pi * 15 = 30*pi ft
Perimeter of Rectangle : P = 2*15 + 2*4 = 30 + 8 = 38 ft
Total Perimeter = 132.2 ft
Area of Circle : A = pi * r^2
Area of Rectangle = L * W
Area of Circle : A = pi * 15^2 = 225*pi ft^2
Area of Rectangle = 15 * 4 = 60 ft^2
Total Area = 225*pi + 60 = 766.9 ft^2
Answer:
236.7 = area
55.1 = perimeter
Which of the following is an example of the identity property of 1?
Answers
Answer:
Option B
Step-by-step explanation:
The identity property of 1 states that any number multiplied by one would be the same number.
\(a * 1 = a\)
Option B shows that (11/25) multiplied by one would be (11/25). The product would same as the multiplicand in this scenario.
Option B would be the most appropriate answer for the question.
Hope this helps.
1. Show that
(10a + 5)^2 = 100a(a + 1) + 25,
for every a real number. How is this formula explaining the rule we have, to square a number
which ends in 5, such as
25^2 = 625, 35^3 = 1225, 105^2 = 11025^2, etc. ?
Answers
Answer:
(10a+5)²= 100 a( a+1) + 25
Step-by-step explanation:
Explanation:-
Given
(10a+5)²
By using (a+b)² = a² +2ab +b²
= (10a)²+ 2 × 10a× 5 + (5)²
= 100a² + 100a + 25
= 100 a( a+1) + 25
A particular electronic component is produced at two plants for an electronics manufacturer. Plant A produces 70% of the components used and the remainder are produced by plant B. Among the components produced at plant A, the proportion of defective components is 1%. Among the components produced at plant B, the proportion of defective components is 2%. If a component received by the manufacturer is defective, the probability that it was produced at plant A is
Answers
Answer:
If a component received by the manufacturer is defective, the probability that it was produced at plant A is 0.5385 = 53.85%.
Step-by-step explanation:
We use the Bayes Theorem to solve this question.
Bayes Theorem:
Two events, A and B.
\(P(B|A) = \frac{P(B)*P(A|B)}{P(A)}\)
In which P(B|A) is the probability of B happening when A has happened and P(A|B) is the probability of A happening when B has happened.
In this question:
Event A: Defective component
Event B: Produced at plant A.
Plant A produces 70% of the components used
This means that \(P(B) = 0.7\)
Among the components produced at plant A, the proportion of defective components is 1%.
This means that \(P(A|B) = 0.01\)
Probability of a defective component:
1% of 70%(defective at plant A)
2% of 100 - 70 = 30%(defective at plant B). So
\(P(A) = 0.01*0.7 + 0.02*0.3 = 0.013\)
If a component received by the manufacturer is defective, the probability that it was produced at plant A is
\(P(B|A) = \frac{0.7*0.01}{0.013} = 0.5385\)
If a component received by the manufacturer is defective, the probability that it was produced at plant A is 0.5385 = 53.85%.
Where do I plot the graph coordinates
Answers
Step-by-step explanation:
So... where it says Y=4x-1, take the 4x and plot it on the y axis, next on the equation it says -1, plot -1 on the left ( X-axis)
I hope this helps
a tip of $10 is typically suitable for which kind of service?
a mover delivering furniture
a valet who parks your car
a waiter at a fast food restaurant
Answers
0.000549 in scientific notation
Answers
Answer: 5.49 × 10-4
Step-by-step explanation:
When you move the decimal over move it over to the right by 4 units.
When you move right it is (-) negative. So you get 5.49 x 10-4.
pls help me this is due tonight by 8 40
Answers
Answer:
a. gh³
b. xy³
Step-by-step explanation:
a. \(g^{3-2}\)\(h^{5-2}\) = gh³
b. \(x^{3-2} y^{4-1} p^{1-1}\) = xy³
Use the negative exponent rule.
A line passes through -8,5 and has a slope of 3/4 write the equation in slope intercept form
Answers
The equation of the line in slope-intercept form is y = (3/4)x.
To write the equation of a line in slope-intercept form, we need to use the slope-intercept form equation: y = mx + b,
where m is the slope and b is the y-intercept.
Given that the line passes through the point (-8, 5) and has a slope of 3/4, we can substitute the values into the equation to find the y-intercept (b).
First, let's find the value of b using the point-slope form equation: y - y1 = m(x - x1), where (x1, y1) is a point on the line.
Using (-8, 5) as the point and 3/4 as the slope, we have:
5 - 5 = (3/4)(-8 - x)
0 = (3/4)(-8 - x)
0 = (-3/4)(8 + x)
0 = -6 - (3/4)x
Next, we can solve for x:
(3/4)x = -6
x = -6 \(\times\) (4/3)
x = -8
Now that we have the value of x, we can substitute it back into the equation to find the value of b:
0 = -6 - (3/4)(-8)
0 = -6 + 6
0 = 0
So, the value of b is 0.
Finally, we can write the equation of the line in slope-intercept form:
y = (3/4)x + 0
y = (3/4)x.
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Determine the measure of the third angle in a triangle when the other two angles total 165 degrees.
Answers
Answer:
15
Step-by-step explanation:
180-15
Hello!
the sum of the angles in the triangle = 180°
so the 3rd angle = 180° - 165° = 15°
The answer is 15°Rose has a savings account. Every month she deposits $20 in it. The graph shows the relationship between the months and the balance of Rose’s savings account. Write an inequality to show when Rose will have more than $160 in her savings account. Explain your answer.
Answers
The graph shows that Rose's savings account balance increases by $20 each month.
How to explain the informationThe balance of her account after m months is 20m dollars. We want to find an inequality that shows when 20m>160, or when m>8.
Therefore, the inequality that shows when Rose will have more than 160 dollars in her savings account is m>8.
Here is a table of values that shows that Rose will have more than 160 dollars in her savings account after 8 months:
Month | Balance
------- | --------
1 | 20
2 | 40
3 | 60
4 | 80
5 | 100
6 | 120
7 | 140
8 | 160
In conclusion, the graph shows that Rose's savings account balance increases by $20 each month.
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May you help me please with this homework for Math?
Answers
The the vertices of reflected square, Q'R'S'T are Q' = (3, 1), R' = (-8, -2), S' = (-7, -7) and T' = (-2, -6)
What is reflection?A reflection is a mirror image of the shape. An image will reflect through a line, known as the line of reflection. A figure is said to reflect the other figure, and then every point in a figure is equidistant from each corresponding point in another figure.
Given that, a square QRST with vertices Q(-3, 1), R(8, -2), S(7, -7) and T(2, -6)
is reflected across y-axis, to form Q'R'S'T we need to find the vertices of reflected square.
We know that, rule of reflection over y-axis,
(x, y) → (-x, y)
Q' = (3, 1)
R' = (-8, -2)
S' = (-7, -7)
T' = (-2, -6)
Hence, the the vertices of reflected square, Q'R'S'T are Q' = (3, 1), R' = (-8, -2), S' = (-7, -7) and T' = (-2, -6)
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what is the place value of 8 in fullowing number? 348000
Answers
Answer: 8000
Step-by-step explanation:
The 8 in the number 348,000 is in the thousands place.
So it represents the value of 8,000 .
ILL GIVE BRAINLY What is the surface area of the cube?
Drag and drop the correct surface area to match the cube.
Answers
Answer:
Below
Step-by-step explanation:
A cube has SIX sides of equal area
each side has area = L x W and L and W are the same = 4.5 m
so: Area = six X ( 4.5 X 4.5) = 6 * 4.5 * 4.5 = 121.5 m^2
Answer:
Hope the picture will help you...
help please !!! x/4 = 9/x
Answers
Step-by-step explanation:
x/4=9/x
x.x=4.9
x^2=36
√x=√6
x=6
The standard deviation of a population is 1.9. What is the margin of error? Enter your answer in the box. ±
Answers
The margin of error is defined as follows:
M = 1.9z/sqrt(n).
In which:
z is the critical value.n is the sample size.What is a z-distribution confidence interval?The bounds of the confidence interval are given as follows:
\(\overline{x} \pm z\frac{\sigma}{\sqrt{n}}\)
In which:
\(\overline{x}\) is the sample mean.z is the critical value.n is the sample size.\(\sigma\) is the standard deviation for the population.The margin of error is then given as follows:
\(M = z\frac{\sigma}{\sqrt{n}}\)
Missing InformationThe problem is incomplete, hence the general procedure to obtain the sample size was presented.
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What is the round trip distance in miles from city 1 to city 3?
15
30
50
70
Answers
The round trip distance in miles from city 1 to city 3 is given as follows:
30 miles.
How to obtain the round trip distance?The matrix corresponding to the distances between each of the cities is given by the image presented at the end of the answer.
Looking at row 1, column 3, we have that the distance from city 1 to city 3 is of 15 miles.
For the round trip distance, we have to go back from city 3 to city 1, more 15 miles, hence the distance is given as follows:
2 x 15 = 30 miles.
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