Answer:
160 miles
Step-by-step explanation:
So every 30 minutes Suzy can go 40 miles
So 1 hour would be equal = 80 miles
add another hour = 120 miles
add 1 more hour = 160 miles
Solve: 12x^2+5x-4=12^2x+6
A. x = 2
B. x = –5
C. x = 2, x = –5
D. no solution
The graph of a function f is
shown below. Find f(-4)
Answer:
-1
Step-by-step explanation:
f(-4) means to find the y-value where x is -4. The blue graph passes through the point (-4,-1), so y=-1 when x=-4.
our new magazine initially sells 400 copies per month. research indicates that a vigorous advertising campaign could increase sales by 30% each month if our market were unlimited. but research also indicates that magazine sales in our area are unlikely to exceed 2000 per month. make a logistic model of projected magazine sales. (use t as your variable. round b to three decimal places.)
The logistic model of the projected magazine sales is P = e¹⁰⁰⁰/1+e¹⁰⁰⁰
What is meant by logistic model?
In math, logistic model refers a statistical analysis method to predict a binary outcome, such as yes or no, based on prior observations of a data set.
Here we have given that our new magazine initially sells 400 copies per month. research indicates that a vigorous advertising campaign could increase sales by 30% each month if our market were unlimited. but research also indicates that magazine sales in our area are unlikely to exceed 2000 per month.
Here we need to make a logistic model of projected magazine sales.
As per the formula of logistic model, while we looking into the given question, we identified the values,
a = 400
x = 30% => 0.3
b = 2000
Then the logistic model of the given situation is written as,
=> P = e⁴⁰⁰⁺⁰°³ˣ²⁰⁰⁰/ 1 + e⁴⁰⁰⁺⁰°³ˣ²⁰⁰⁰
=> P = e¹⁰⁰⁰/1+e¹⁰⁰⁰
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If the cost, C(x), for manufacturing x units of a certain product is given by
C(x) = x2 – 15x + 34
find the number of units manufactured at a cost of $8350.
Answer:
99 units.
Step-by-step explanation:
The cost function for manufacturing x units of a certain product is:
\(C(x)=x^2-15x+34\)
We want to find the number of units manufactured at a cost of $8350. Therefore:
\(8350=x^2-15x+34\)
Subtract 8350 from both sides:
\(x^2-15x-8316=0\)
This equation can be a bit difficult to factor, if even possible, so we can use the quadratic formula:
\(\displaystyle x=\frac{-b\pm\sqrt{b^2-4ac}}{2a}\)
In this case, a = 1, b = -15, and c = -8316. Thus:
\(\displaystyle x=\frac{-(-15)\pm\sqrt{(-15)^2-4(1)(-8316)}}{2(1)}\)
Simplify:
\(\displaystyle x=\frac{15\pm\sqrt{33489}}{2}\)
Evaluate:
\(\displaystyle x=\frac{15\pm183}{2}\)
Therefore, our solutions are:
\(\displaystyle x=\frac{15+183}{2}=99\text{ and } x=\frac{15-183}{2}=-84\)
We cannot produce negative items, so we can ignore the second answer.
Therefore, for a cost of $8350, 99 items are being produced.
find 2×57. it says drag the numbers shown to complete the problem. Numbers may be used more than once or not at all.100, 70, 5, 14, 2, 7, 50,1142× 57= ×(50+ )=( × ) +( × )= + =
Find
\(2\times57\)For the first part
\(2\times57=2\times(50+7)=2\times57=114\)For the second part
\(2\times57=(2\times50)+(2\times7)=100+14=114\)For the third part
\(2\times57=100+14=114\)For the last part
\(2\times57=114\)If the area of a square inscribed in a circle is
25, what is the area of the circle?
The area of a square inscribed in a circle is 25, then the area of the circle is 25π/2 or approximately 39.27 square units.
To solve this problem, we can use the relationship between the area of a square inscribed in a circle and the area of the circle itself.
When a square is inscribed in a circle, the diagonal of the square is equal to the diameter of the circle. Let's assume that the side length of the square is 's' and the radius of the circle is 'r'.
We are given that the area of the square is 25, so we can find the side length of the square:
Area of square = \(s^2 = 25\)
Taking the square root of both sides, we get:
s = √25 = 5
Since the diagonal of the square is equal to the diameter of the circle, we can find the diameter of the circle:
Diagonal = Diameter = s√2 = 5√2
The radius of the circle is half the diameter, so:
Radius = 5√2 / 2 = (5√2)/2
Now, we can calculate the area of the circle using the formula:
Area of circle = \(\pi r^2\)
Substituting the value of the radius, we get:
Area of circle = π((5√2)/\(2)^2\) = π(25/2) = 25π/2
Therefore, the area of the circle is 25π/2 or approximately 39.27 square units.
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Solve.
Gavin's house is more than 5.4 miles from his school.
a Let x represent the distance, in miles, between Gavin's house and his school.
Write an inequality to represent the situation.
Inequality representing the situation is x>5.4
Inequalities DefinitionIn Algebra, an inequality is defined as mathematical statement that uses the inequality symbol to illustrate the relationship between two expressions. An inequality symbol has nonequal expressions on both sides. It signifies that the phrase on the left should be bigger or smaller than the expression on the right, or vice versa.
"A connection is referred to an inequality if two real numbers or algebraic expressions are connected by the symbols ">," "," "," or "."
More than 5.4 miles separate Gavin's home from his school.
Let the number of miles that separate Gavin's home from his school= x
Inequality representing the situation
distance of Gavin's home and his school>5.4
x>5.4
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HELP MEEEEEEEEEEEEEEEEEEEEE PLEASE!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!HELP MEEEEEEEEEEEEEEEEEEEEE PLEASE!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!HELP MEEEEEEEEEEEEEEEEEEEEE PLEASE!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!HELP MEEEEEEEEEEEEEEEEEEEEE PLEASE!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!HELP MEEEEEEEEEEEEEEEEEEEEE PLEASE!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!HELP MEEEEEEEEEEEEEEEEEEEEE PLEASE!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
Part a
Setting \(x=6\), \(y=7.9(1.02)^6 \approx \boxed{8.9}\)
Part b
Setting \(x=14\), \(y=7.9(1.02)^{14} \approx \boxed{10.4}\)
What is the Answer
Please Help
Answer:
Step-by-step explanation:
circumference=2πr
=2*3.14*2
=12.56 km
An architect creates a blueprint using a scale of 1 inch = 3.5 ft. If the actual
length of a patio is 21 feet, how long will the patio's length appear in the
blueprint?
O 6 inches
O 7 inches
O 17.5 inches
O 73.5 inches
6 inches will be the length of the patio.
According to the scale, 1 inch on the plan corresponds to 3.5 feet in real life.
We must convert the patio's real length of 21 feet to inches using the scale in order to determine how long it would look on the blueprint:
3.5 feet to one inch
21 feet in x inches
If we cross-multiply, we obtain:
1 inch/3.5 feet * 21 feet
= x inches
= 6 inches.
As a result, the length of the patio will be indicated on the blueprint as 6 inches.
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PLEASE ANSWER AS SOON AS POSSIBLE
Answer:
4 to 1
Step-by-step explanation:
Tablespoon of cocoa to Tablespoon of sugar
8 : 2
\(\frac{8}{2}\) : \(\frac{2}{2}\)
4 to 1
When recipe is doubled: ( 8 x 2) to (2 x 2)
16 : 4
\(\frac{16}{4}\) : \(\frac{4}{4}\)
4 to 1
It can be observed that the ratio remains the same
Please help me solve this I have a D in math!!
Therefore, the explicit formula for f(n) is: f(n) = 10 * \(3^{(n - 1)}\)
f(1)=10
What is explicit formula?An explicit formula for f(n), the number of members the creators have a goal of getting n weeks after the website is made available, can be determined by using the information provided that the number of members is tripled every week.
So, we can start with the initial number of members (10) and multiply it by 3 for each week.
Therefore, the explicit formula for f(n) is:
f(n) = 10 * \(3^{(n - 1)}\)
A recursive formula for f(n) can be determined by using the information that the number of members is tripled every week, and the initial number of members is 10.
So, we can start with the initial number of members (f(1)=10) and use the previous value of f(n-1) to calculate the current value of f(n).
Therefore, the recursive formula for f(n) is:
f(n) = 3f(n-1) + 10
for n>1
f(1)=10
In this way, we can calculate the number of members for any week using the explicit formula or the recursive formula.
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What is 2,356 divided by 27
Answer:336.57
Step-by-step explanation:
Answer:
87.259.
Step-by-step explanation:
HELP?!!!!! Name the space figure you can form from the net.
Answer:
a or b but i think a
Step-by-step explanation:
5 odd numbers sum get 26
Answer:
It is not possible... I think so
Arrange the steps in order to simplify the expression
Answer:
Step-by-step explanation:
For step explanation:
1. write the problem
2. distinguishing the neg sign
3. distributing 3
4. moving like terms next to each other through commutative property
5. Combining like terms
6. getting rid of parentheses
179=-9x+8
How do I break it down to slove this problem
Answer:
x = -19
Step-by-step explanation:
first isolate x by subtracting 8 on both sides:
179 = -9x + 8
-8 -8
=> 171 = -9x
then divide -9 on both sides to solve for x:
=> x = 171 ÷ -9 = -19
hope it helps ;)
Selling Price = $ 504 and Gain % = 12%
Answer:
Step-by-step explanation:
sp = 504
gain = 12%
in this case
sp =100%+12%=504
112%=504
1%=504/112 =4.5
100%=450
so cost =$450
Hope im correct, if i am im glad to be of service.
HELP!!!Joe can type 40 words every 2 minutes. How many words can he type in 5 minutes?
Answer:100
Step-by-step explanation:
40+40 =80 +20=100
45. A 5-foot log leans against a wall and inclines at a 45° angle from the ground. What expression will
solve the distance between the base of the log to the base of the wall?
A. sin 45
B. cos 45
C. tan 45
D. csc 45
46. What trigonometric ratio can we use to solve for the height of a building given the distance between
the observer and the base of the building and its angle of elevation?
A. Sine
B. Cosine
C. Tangent
D. Secant
47. With the sun, a girl 1.4 m tall casts a 3.6 m shadow. Find the angle of elevation from the tip of
the shadow to the sun.
A. 18°
B. 19°
C. 20°
D. 21°
48. What formula is used to solve the problem: "Find zB in an oblique triangle ABC with the
following measures: A = 50°, a = 15 and b = 10."
A. Sine Law
B. Cosine Law
C. Tangent Law
D. Cosecant Law
49. In an oblique triangle XYZ, ZX = 63°, x = 139 and y = 140. Find
A: 100°
B. 64°
C. 60°
D. 45°
50. What formula will solve: "Jackie and Peter skate apart with an angle of 15° between them.
Jackie skates for 5 meters and Peter skates for 7 meters. How far apart are the skaters?
A. d² = 52+72-2(5)(7) cos 15
C. 7² = 52+d²-2(5)(d) cos 15
B. 52= d²+72-2(d)(7) cos 15
D. 152=52+72-2(5)(7) cos
Answer: it was be cos4
Step-by-step explanation: 1/2 divided by 3/4 = cos4
Chase and Sara went to the candy store. Chase bought 5 pieces of bobble gum for of $5.70. Sara bought 2 pieces of fudge and 10 pieces of bubble gum for a total of $3.60. Which system of equations could be used to determine the cost of 1 piece of fudge, f, and 1 piece of bubble gum , g.
Joanne and Ed Greenwood built a new barn with an attached arena. To finance the loan, they paid $1,326 interest on $47,600 at 4%. What was the time, using exact interest? (Do not round intermediate calculations. Round up your answer to the nearest day.)
Answer:254 days
Joanne and Ed Greenwood built a new barn with an attached arena. To finance the loan, they paid $1,326 interest on $47,600 at 4%. What was the time, using exact interest? (Do not round intermediate calculations. Round up your answer to the nearest day.)
Step-by-step explanation
Note that
Interest is represented by I=1326
The principal is represented by P=47,600
Rate is R =4%
And Time is year
Interest is calculated using the formulae,
I =PRT/100
From the above formulae, time can be calculated as
T=100I/PR
T= 100×1326/(47600×4)
T= 132600/190400
T= 0.6964 years
To convert to days, multiply by 365(since those no of days make a year)
T= 0.6964×365=254 days
This was approximated to the nearest day
Answer is 254 days
8p(-3p^2+6p-2) hellpppppppp
-16p was my answer after simplifying it
Answer:
120p - 16p = 104p
Step-by-step explanation:
-3p x -3p = 9p + 6p = 15p x 8p = 120p
8p x -2 = -16p
120p - 16p = 104p
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This composite figure is made up of three simpler shapes. What is the approximate area of the figure? Use 3.14 for it som 8 cm
Answer:
A. 67.12 cm²
Step-by-step explanation:
The rectangle is 3 cm by 6 cm.
area of rectangle = 3 cm × 6 cm = 18 cm²
The triangle has a 6 cm base and an 8 cm height.
area triangle = 6 cm × 8 cm / 2 = 24 cm²
The semicircle has a diameter of 8 cm and a radius of 4 cm.
area semicircle = (1/2)(3.14)(4 cm)² = 25.12 cm²
Add the three areas to find the total area.
18 cm² + 24 cm² + 25.12 cm² = 67.12 cm²
Answer: A. 67.12 cm²
Suppose that, starting at a certain time, batteries coming off an assembly line are examined one by one to see whether they are defective (let D = defective and N = not defective). The chance experiment terminates as soon as a nondefective bettery is obtained.a. Give five possible outcomes for this chance experiment.b. What can be said about the number of outcomes in the sample space?c. What outcomes are in the event E, that the number of battery examined is an number?
Answer:
a. Possible outcomes for this chance experiment are:
NDNDDNDDDNDDDDN(Here, D means a defective battery, and N means a nondefective battery.)
b. The number of outcomes in the sample space is infinite, as the experiment could potentially continue indefinitely. However, in practice, we can define a maximum number of batteries that could be examined before the experiment is stopped.
c. The event E, that the number of batteries examined is a number, would include outcomes where the experiment stopped at a particular number of batteries. For example, if the experiment stopped after examining three batteries (i.e., the fourth battery was nondefective), then the outcome would be DDDN, and it would be included in event E. However, outcomes where the experiment continued indefinitely (e.g., DDDDD...) would not be included in event E.
Emily rented her books from the internet for a price
represented by the equation below. Patricia rented her books
from the bookstore for the price represented in the table.
Who pays more money for each additional day, d, after day 0?
P=2d-1
The person who pays more after each additional day d after day 0 is Patricia.
What is an equation?An equation is a mathematical statement that is made up of two expressions connected by an equal sign.
Example:
2x + 4 = 9 is an equation.
We have,
Emily:
P = 2d - 1
After 3 days, the price for renting the book.
P = 2 x 3 - 1 = 6 - 1 = $5
Patricia:
After 3 days, the price for renting the book.
= $20
Thus,
Patricia pays more for each additional day.
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Express Four-fifths as a percent.
Answer:
80%
Step-by-step explanation:
Answer:
80
Step-by-step explanation:
Movies Plus charges its customers a $10 monthly service fee plus $2 for each movie the customer rents. Movies For
Less charges $3 for each movie but does not have a monthly service fee. The costs of renting movies during the same
month is represented in the table below.
Number of Movies
0
2
4
10
15
Movie Rentals
Mark this and return
Movies Plus
(Cost in $)
10
14
18
30
Which statement is true if 15 movies are rented from each company?
Movies For Less costs $5 more.
Movin Durante 5 morn
Movies For Less
(Cost in $)
Next
0
6
12
Submit
Sign out
Aug 17
11:22
The Movies For Less charges $5 more than Movies Plus.Therefore, option A is correct.
According to the statement
we have to find that the Which statement is true if 15 movies are rented from each company.
So, For this purpose, we know that the
From the given information:
Movies Plus charges its customers a $10 monthly service fee plus $2 for each movie the customer rents.
So, 15 movies from this provider will cost = 10+2(15)
15 movies from this provider will cost = 40 dollars
Movies For Less charges $3 for each movie but does not have a monthly service fee.
So, 15 movies from this provider will cost = 15 *3 dollars.
15 movies from this provider will cost = 45 dollars.
Comparing both providers,
Then
we can see that Movies For Less charges $5 more than Movies Plus.
Therefore, option A is correct.
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Disclaimer: This question was incomplete. Please find the full content below.
Question:
Movies Plus charges its customers a $10 monthly service fee plus $2 for each movie the customer rents. Movies For Less charges $3 for each movie but does not have a monthly service fee. The costs of renting movies during the same month is represented in the table below.
Which statement is true if 15 movies are rented from each company?
A)Movies For Less costs $5 more.
B)Movies Plus costs $5 more.
C)Movies Plus costs $6 more.
D)Each company charges the same amount.
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Suppose X,Y and Z are three different random variables. Let X obey a Bernoulli Distribution. The probability distribution function is. c is a constant here.
Let Y obey the Standard Normal (Gaussian) Distribution, which can be written as Y N(0,1). X and Y are independent. Meanwhile, let Z = XY.
Calculate the covariance of Y and Z (Cov(Y, Z)) and determine whether values of c would affect the correlation.
The value of c does not affect the covariance of Y and Z.
How did we arrive at this assertion?The covariance of Y and Z can be calculated as Cov(Y, Z) = E[YZ] - E[Y]E[Z]. Since X is Bernoulli with parameter p and E[X] = p, we have E[Z] = pE[Y]. Hence,
Cov(Y, Z) = E[YZ] - E[Y]E[Z]
= E[YXY] - pE[Y]^2
= pE[Y^2 X] - pE[Y]^2
= p(E[Y^2]E[X] + Var[Y]p) - pE[Y]^2
= p(1 * p + 1 * p^2) - p^2
= p - p^2
It can be seen that the value of c does not affect the covariance of Y and Z.
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What is the area of the polygon below in square units?
4 cm
12 cm
18 cm