Like the name implies, the diagram will involve a box. Specifically, it's a rectangle that has a vertical line somewhere inside it. The vertical line does not have to be at the midpoint. The vertical line represents the median. The left and right edges of the rectangle represent Q1 and Q3 in that order.
On either side of the rectangle are horizontal lines that are called whiskers. They stretch to the min and max (left and right sides respectively). This is when there aren't any outliers. If there are outliers, then there would be isolated island points not connected to the whiskers or the box.
find the equation of tangent and normal to the surface z^2=4(1+x^2+y^2)at (2,2 ,6)
The
equation of tangent and normal
to the surface z^2=4(1+x^2+y^2)at (2,2 ,6) is
2x+2y+2z-24=0
and
2x+2y+6z-24=0
respectively.
Step-by-step explanation:
To find the equation of the
tangent and normal planes
at the point (2, 2, 6), we first need to
find the gradient vector of the surface
, which is the vector pointing in the direction of the steepest ascent.
The gradient vector of the surface is grad(z^2)=<2x,2y,2z>
The equation
of the tangent plane
at the point (2, 2, 6) is given by
<2x,2y,2z> . (x-2,y-2,z-6) =0
so the
equation of tangent plane
is 2x+2y+2z-24=0
The
equation of the normal plane
at the point (2, 2, 6) is given by
<x,y,z> . (2,2,6) = constant
so the
equation of normal plane
is 2x+2y+6z-24=0
Note
: The
dot product
of the position vector <x,y,z> and the gradient vector <2x,2y,2z> gives the equation of the tangent plane. The position vector <x,y,z> gives the equation of the normal plane.
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Tangent and Normal
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Using the following model, answer questions 1 - 2:
You bought a new car for $17,7 in 2005. Its value
has been decreasing by about 13% each year
Cuz Rocha
APPLICATIONS on Modeling Exponential Functions
Answer the following applications. Round your answers to 2 decimal places. Find the solution in the
Answer Bank. When you find a match, place the question number next to the color. Color the picture
accordingly to reveal the mystery picture!
1. Write an exponential model for the value of the car after "x" years
2. What will the car be worth in 2015?
Name:
Using the following model, answer questions 3 - 4:
The population of a small town has been increasing at
1.5% due to an economic boom in the area. The
population was 7,650 in 1995.
Using the following model, answer questions 5 - 6:
Peter earned $2,300 last summer. He deposited the
money in his savings account that earns 2.4% interesi
compounded annually.
Using the following model, answer questions 7 - 8:
You have inherited land that was purchased for
$10000 in 1950. The value of the land incrocisty
approximately 4% per year.
Using the following model, answer questions 9 - 10:
The student enrollment of a high school was 1250 in
2000 and decreased by 1% per year until 2015.
Using the following model, answer questions 11- 12:
You bought a commemorative coin for $150. Each year,
x, the value of the coin increased by 2.5%.
Applications on Modeling Exponential Functions
1. log₂ 128=7
ections: Write
4th
Date:
Rocha
Period:
3. Write an exponential model for the population in this town in a particular year
"X"
4. What is the population in 2017
5. Write an exponential model to describes the amount of money in the bank
after x number of years
6. How much money will Peter have in 8 years?
7. Write an exponential model for the value of the land x years after 1950
7.
What is the approbate value of the land in the year 2010
9. Write an exponential model to show school's student enrollment in terms of
x, the number of years since 2000.
10.
What is the number of students in 2015?
11. Write an exponential model to give the value of the coin after x number of
years.
12. What is the value of the coin at 50 years?
Never Give Up On Math 2017
:I
173
3.
nece
Answer:
If f(x) = +4, which of the following is the inverse of f(x)?
O A. ƒ˜¹(x) = 2(2+4)
B. ƒ˜¹(x) = 7(2-4)
C. ƒ˜¹(x) = 7(2+4)
D. f¯¹(x) = ²(2-4)
Step-by-step explanation:
how do i know which one?
The inequality value that would be able to show/x/ ≤ 5 is option A
What is inequality?
In mathematics, inequality refers to a mathematical statement that expresses a relationship between two quantities, indicating that one quantity is greater than, less than, or not equal to the other.
The symbol that we have is telling us that the value of the x would be less than or it would be seen to be equal to five.
We can see that /x/ ≤ 5 would exclude the negative values and this can be seen in the option that is marked option A
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60 POINT QUESTION. Middle school math, ordered pairs.
Answer:
(0,2)
(3,0)
Step-by-step explanation:
Divide 7 by 4 then add f to the results
Answer:
1.78f
Step-by-step explanation:
7/4=1.78 and then you add f
Find the scale factor. Please help
The scale factor is 4/5.
Describe Fraction?In mathematics, a fraction represents a part of a whole. A fraction consists of two numbers separated by a horizontal line called a fraction bar or a division sign. The number above the bar is called the numerator, and the number below the bar is called the denominator.
The numerator represents the number of parts being considered, while the denominator represents the total number of parts in the whole. For example, in the fraction 3/4, 3 is the numerator and 4 is the denominator. This fraction represents three parts out of a total of four equal parts.
Fractions can be written in different forms, such as proper fractions, improper fractions, and mixed numbers.
A proper fraction has a smaller numerator than the denominator, such as 2/3 or 5/8.
An improper fraction has a numerator that is equal to or greater than the denominator, such as 7/4 or 11/6.
A mixed number consists of a whole number and a proper fraction, such as 2 1/3 or 3 2/5.
Fractions are used in many real-life situations, such as cooking, measuring, and financial calculations. They are also an essential part of mathematics and are used in operations such as addition, subtraction, multiplication, and division.
To find the scale factor, we can compare the ratios of the corresponding side lengths of the congruent triangles.
Scale factor = (corresponding side length in triangle FQX) / (corresponding side length in triangle CVI)
Let's first identify the pairs of congruent angles:
Angle FQX = angle CVI (both are right angles)
Angle XQF = angle ICV (corresponding angles)
Angle FXQ = angle CVI (corresponding angles)
Now let's write the ratios of the corresponding side lengths in a proportion:
FQ / CV = QX / VI = XF / IC
Substituting the given values, we have:
28 / 35 = 36 / 45 = 24 / 30
Simplifying each fraction, we get:
4 / 5 = 4 / 5 = 4 / 5
Therefore, the scale factor is 4/5.
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Use a Venn diagram to find the greatest common factor of 12 and 30.
The GCF is?
pls help i will mark brainlyest
Answer:
∠b=82°
Step-by-step explanation:
143°=∠c+∠b (exterior angle property)
143°=61°+∠b
∠b=143-61
∠b=82°
Would like an answer for this question. Which represents 7(45) using the distributive property to simplify? SELECT THE TWO THAT APPLY. 1# 7 (40 - 5) 2# 7 (4) + 7 (5) 3# 7 (40 +5) 4# 7 (40) + 7(5)
Answer:
7(45)=7(40)+7(5)
Step-by-step explanation:
We need to represent 7(45) using the distributive property to simplify.
We can write 45 as 40+5
So it becomes,
7(45) = 7(40+5)
Distributive property is : a(b+c)=ab+ac
a=7, b = 40 and c = 5
7(40+5)=7(40)+7(5)
So, the correct option is (4).
(5+3) • 5-3/8-3•2 help me
Answer:
79.25
Step-by-step explanation:
8*5=40
40-3/8=39.625
39.625*2=79.25
Hope this helps
In the quadrilateral,all the sides are equal,but diagonals are not equal is called?
Answer:
I think it would be a rhombus.
The total population of ethnic Southeast Asian students from Burma, Laos, Thailand, Vietnam, and Kampuchea at your university is currently 100 students. The administration of the university wants to increase the diversity of the student body and decides to increase the number of students from Southeast Asia by 8 percent each year, (over the prior year's enrollment) for a period of 15 years. How many students from Southeast Asia will be enrolled at your university after the 15 year period
Answer:
the number of students that enrolled after 15 year is 317
Step-by-step explanation:
The computation of the number of students that enrolled after 15 year is shown below;
We know that
Future value = Present value × (1 +rate of interest)^number of years
= 100 × (1+8%)^15
= 100 × 1.08^15
= 317
Hence, the number of students that enrolled after 15 year is 317
The same should be considered and relevant
what’s the answer to 5y-4
Answer:
y = 0.8
Step-by-step explanation:
A triangle in the coordinate plane has the following vertices: P(-4,-3), 1(-2,-2), G(-2,-4). What are the new coordinates if the triangle is translated 3 units right and 4 units up?
Answer:
P’(-1, 1), I’ (1, 2), G’(1,0)
Step-by-step explanation:
PLZZ HELP I NEED HELP
write a 2 step equation and solve:
1. four more than six times a number is 22.
2. five less than eleven times a number is 50.
3. seven less than nine times a number is -16.
Step-by-step explanation:
1) let the number=x
six times a number=6x
Condition:
6x+4=22
2) eleven times a number=11x
Condition:
11x-5=50
3) 9 times a number=9x
Condition:
9x-7=-16
Note:if you need to ask any question please let me know.
PLEASE HELP ASAP!!!! GOING TO GIVE 30 POINTS
Answer:
The second answer option
Step-by-step explanation:
Lmk if you need explanation
Given ΔABC≈ΔPQR and your scale factor:
Complete the Hotspots
If youd like to show your work please do itll help me better understand.
∠1 = 68°
∠2 = 22°
side 3 = 5 cm
side 4 = 19.5 cm
5: perimeter of ΔABC = 45 cm
6: perimeter of ΔPQR = 30 cm
7: Area of ΔPQR = 30 cm²
How to complete the hotspots for the similar triangles?Similar triangles are triangles that have the same shape but may have different sizes. This means that corresponding angles of similar triangles are equal, and corresponding sides are in proportion.
The hotspots can be completed as follow:
∠1 = 180° - 22° - 90° = 68° (angle sum in a triangle)
∠2 = 22° (similar triangle)
side 3 = √(13²-12²) = 5 cm (Pythagoras)
side 4 = √(18²+7.5²) = 19.5 cm (Pythagoras)
5: perimeter of ΔABC = AB + BC + AC = 7.5 + 19.5 + 18 = 45 cm
6: perimeter of ΔPQR = PQ + QR + PR = 5 + 13 + 12 = 30 cm
7: Area of ΔPQR = 1/2 * base * height = 1/2 * 12 * 5 = 30 cm²
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tucker is making cookies the recipe called for 1/3/4 cups of flour and 1/2cup of sugar how much flour and sugar coral will be use to make the cookies
The flour and sugar coral that will be use to make the cookies is 2 1/4 cups.
How to calculate the fraction?A fraction is simply a piece of a whole. The number is represented mathematically as a quotient where the numerator and denominator are split. In a simple fraction, the numerator as well as the denominator are both integers.
In this situation, Tucker is making cookies the recipe called for 1/3/4 cups of flour and 1/2cup of sugar.
The flour and sugar coral that will be use to make the cookies will be:
= 1 3/4 + 1/2
= 2 1/4
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Please help
Me
I need to finish this I will give brainlest
Only the opposite edges of a rectangle's parallel and congruent angles are congruent. Although the sides and angles of a trapezoid may not always be identical, at least one set of its sides must be parallel.
what is parallel lines?In geometry, parallel lines are coplanar unlimited lines that never cross. In a particular three-dimensional space, the parallel planes represent the ones that never cross. Parallel curves are those with a constant minimum separation between them and no places of contact or intersection. In geometry, parallel lines are two lines which run in the exact same plane, evenly spaced apart, and hadn't cross. Both vertical and horizontal can be used. In commonplace items like train tracks, stacks of notebooks, and crossings for pedestrians, straight lines can be seen.
The form of Jackson's poster is best described as a rhombus. A quadrilateral with a rhombus has opposing sides that are parallel and all of its sides are equal. Additionally, it has congruent opposing angles. In addition to having parallel opposing sides, a parallelogram also has non-congruent sides and angles. Only the opposite edges of a rectangle's parallel and congruent angles are congruent. Although the sides and angles of a trapezoid may not always be identical, at least one set of its sides must be parallel.
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Two cars leave towns 680 kilometers apart at the same time and travel toward each other. One car's rate is 16 kilometers per hour less than the other's. If they
meet in 4 hours, what is the rate of the slower car?
Do not do any rounding.
The rate of the slower car is 77km/hr
What is velocity?Velocity is the rate of change of displacement with time. It is measured in meter per second and it is a vector quantity.
velocity = displacement/time
displacement = velocity × time
represent the faster car by v1 and the slower car by v2
v1 = v2+16
V2 = v1-16
Total displacement = 680km
680 =( v1+V2)t
680 = (v1+V2)4
v1+v2 = 680/4
v2+16+v2 = 170
2v2 = 170-16
2v2 = 154
v2 = 154/2
v2 = 77km/hr
therefore the rate of the slower car is 77km/hr
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The diference between
12•6 and a number
is 5•4. find two possible values for thenumber
Answer:
18, 7.4 (if its 12.6) and 52, 92 (if its 12x6)
Step-by-step explanation:
A company supplying candy to school vending machines needs to know about candy preferences of middle school and high school age students. A random sample of 400 students was taken. The company wants to know if there is any relationship between the candy choices and the age of students. After performing a chi-square test of independence, the chi-square test statistic = 24.68. The appropriate critical value for df and desired alpha level = 11.34.
Is there sufficient evidence to reject the null hypothesis? Explain.
Answer:
Yes
Step-by-step explanation:
The chi-square test statistic = 24.68.
The critical value for df = 11.34.
Since the calculated value of the chi square falls in the critical region it is concluded that the two variables are dependent.
1) The null and alternative hypotheses are
H0: candy preferences of students is independent of age.
Ha: candy preferences of students is not independent of age.
As the calculated value χ² = 24.68 lies in the critical region χ² ≥χ² =11.34, null hypothesis is rejected.
Therefore, we conclude that there is not enough evidence to accept the null hypothesis .
(-3.4k-7)+(3k+21) find the sum
Answer:
-0.4k + 14
Step-by-step explanation:
hope that helped!
What is
3 1/6 - 2 5/6 =??
The answer is 1/3
please see the attached picture for full solution
Hope it helps
Good luck on your assignment
Answer: 1/3
Step-by-step explanation: To subtract mixed numbers, first subtract the fractions.
Notice here however that we have 1/6 - 5/6
which will give us a negative fraction.
Since this will cause us a lot of trouble, instead,
let's rewrite the first mixed number.
We can do this by thinking of 3 and 1/6 as 2 + 1 and 1/6 or 2 + 7/6
by changing 1 and 1/6 into an improper fraction.
So 3 and 1/6 can be written as 2 and 7/6.
So we have 2 and 7/6 - 2 and 5/6.
Now, subtract the fractions.
So we have 7/6 - 5/6 which is 2/6.
Then subtract the whole numbers.
2 - 2 is 0.
However, we don't need to include 0 in our answer.
We can write our answer as 2/6.
However, 2/6 is not in lowest terms.
So divide the numerator and denominator by 2 to get 1/3.
So 3 and 1/6 - 2 and 5/6 is 1/3.
Sam has a deck that is shaped like a triangle with a base of 18 feet and a height of 7 feet. He plans to build a 2:5 scaled version of the deck next to his horse's water trough.
Part A: What are the dimensions of the new deck, in feet? Show every step of your work. (4 points)
Part B: What is the area of the original deck and the new deck, in square feet? Show every step of your work. (4 points)
Part C: Compare the ratio of the areas to the scale factor. Show every step of your work. (4 points)
The 2 : 5 scaled version of the deck Sam plans to build and the dimensions of the original deck indicates;
Part A; Base length of the new deck = 7.2 feet
Height of the new deck = 2.8 feet
Part B; The area of the original deck is 63 square feet
The area of the new deck is 10.08 square feet
Part C; The ratio of the areas is the square of the scale factor
What is a scale factor?A scale factor is a number or factor that is used to enlarge or reduce the dimensions a shape or size of a figure.
The base length of the triangular deck = 18 feet
The height of the triangular deck = 7 feet
The scale factor for the scaled version Sam intends to build = 2 : 5
Part A; The dimensions of the new deck are;
Base length of the new deck using the the 2 : 5 ratio is; (2/5) × 18 = 7.2 feet
The height of the new deck = (2/5) × 7 = 2.8 feet
Part B; The area of the original deck = (1/2) × 18 × 7 = 63 square feet
Area of the new dec = (1/2) × 7.2 × 2.8 = 10.08 square feet
Part C; The ratio of the areas is; 10.08/63
Ratio of the area = 10.08/63 = 4/25 = 4 : 25
The scale factor is; 2 : 5
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An inductor of l = 250 is subjected to a voltage v(t) = 8 e-4t V:
A. Knowing that, integrate both sides to determine the current i(t). You may assume that the initial current is zero.
B. Given that the absorbed power is, determine the total stored energy.
A. The current flowing through the inductor at time T is given by i(T) = (2/250) * (1 -\(e^{-4t}\))A B. The total stored energy in the inductor from t = 0 to t = T is given by W(T) = 2( \(e^{-4t}-e^{-8t}\)) J.
Describe Integration?Finding the region beneath a curve or the entire accumulation of a quantity over a given period is the goal of the mathematical procedure known as integration. It is the inverse operation of differentiation and is frequently employed in a number of scientific, mathematical, and engineering disciplines.
Finding an antiderivative—a function that, when separated from the original function being integrated—is a necessary step in the integration process. The symbol for this antiderivative is frequently ∫f(x) dx, where f(x) is the function being integrated and dx denotes an incredibly minute change in x. The outcome of the integration is a family of functions that differ from one another by a constant quantity called the integration constant.
A. We know that v(t) = L di(t)/dt, where L is the inductance of the inductor and i(t) is the current flowing through it at time t. We can rearrange this equation to get di(t)/dt = v(t)/L, and then integrate both sides with respect to time from t = 0 to t = T to get:
∫[0, T] di(t)/dt dt = ∫[0, T] v(t)/L dt
After integrating the left side, we get:
i(T) - i(0)
This becomes i(T) as the starting current is zero. When the right side is integrated, we get:
(1/L) ∫[0, T] v(t) dt
When we replace the given phrase for v(t), we obtain:
(1/L) ∫[0, T] 8 -\(e^{-4t}\) dt
When we incorporate this expression, we get:
(1/L) * (-2 \(e^{-4t}\) ) |[0, T]
When the integration and simplification limitations are swapped out, we obtain:
i(T) = (2/L) * (1 - \(e^{-4t}\) ) A
As a result, the current through the inductor at time T can be calculated as follows:
i(T) = (2/250) * (1 - \(e^{-4t}\) ) A
B. As of time T, the inductor's total stored energy is given by:
W(T) = (1/2) L i²(T)
We obtain the following by substituting the expression for i(T) from section A:
W(T) = (1/2) * 250 * [(2/250) * (1 - \(e^{-4t}\) )]²
Simplifying, we get:
W(T) = 2.5 * [(1 - \(e^{-4t}\) )²] J
We integrate this expression with regard to time from t = 0 to t = T to determine the total energy stored from t = 0 to t = T:
W(T) = ∫[0, T] 2.5 * [(1 - \(e^{-4t}\) )²] dt
We can rewrite this integral as follows by replacing the supplied expression for p(t):
W(T) = (1/8) ∫[0, T] p(t) dt
Integrating p(t) in relation to time results in:
p(t) = 64 ( \(e^{-4t}-e^{-8t}\))
∫[0, T] p(t) dt = 16 ( \(e^{-4t}-e^{-8t}\)) J.
When we use this expression to solve for W(T), we obtain:
W(T) = 1/8 * 16 ( \(e^{-4t}-e^{-8t}\)) J.
Simplifying, we get:
W(T) = 2 ( \(e^{-4t}-e^{-8t}\)) J.
As a result, the formula for the total energy stored in the inductor from t = 0 to t = T is as follows:
W(T) = 2 ( \(e^{-4t}-e^{-8t}\)) J.
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Billy drove his car 290 miles in 5 hours. Sheila drove her car 132 miles in 2 hours. If each driver is traveling at a constant speed (in miles per hour), who is driving at a faster speed?
Answer:
Shelia is
Step-by-step explanation:
hope this helps plz mark brainlessly
Please help with these to questions its urgent please!
Answer:
First problem: x = 5.7√2 = (57√2)/10
Second problem: x = 10√3
The intensity of the sound is 320 watts/cm2. Find the number of decibels of sound emitted by the animal. Substituting I = 320, and rounding intermediate results to the nearest ten-thousandth
D = 10(log (320) + 16)
The number of decibels of sound emitted by the animal is approximately 145.05 dB.
How to solveTo find the number of decibels (D) of sound emitted by the animal, we will use the formula D = \(10 * log10(I / I0)\), where I is the intensity of the sound (320 watts/cm2) and I0 is the reference intensity (10^-12 watts/cm2).
First, calculate the ratio I / I0 = \(320 / (10^-12) = 3.2 * 10^14.\)
Then, find the base-10 logarithm of this ratio: \(log10(3.2 * 10^14) ≈ 14.5051.\)
Finally, multiply this result by 10: D = \(10 * 14.5051\) ≈ 145.051 decibels.
So, the number of decibels of sound emitted by the animal is approximately 145.05 dB.
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Identify a possible first step using the elimination method to solve the system and then find the solution to the system. 3x - 5y = -2 2x + y = 3 Responses A Multiply first equation by -3 and second equation by 2, solution (1, -1).Multiply first equation by -3 and second equation by 2, solution (1, -1). B Multiply first equation by -2 and second equation by 3, solution (1, -1).Multiply first equation by -2 and second equation by 3, solution (1, -1). C Multiply first equation by -2 and second equation by 3, solution (1, 1).Multiply first equation by -2 and second equation by 3, solution (1, 1). D Multiply first equation by -3 and second equation by 2, solution (-1, 1)
Answer:
(C) Multiply first equation by -2 and second equation by 3, solution (1, 1)
Step-by-step explanation:
Simultaneous equations:Simultaneous equations are set of equations which possess a common solution. The equations can be solved by eliminating one of the unknowns by multiplying each of the equations in a way that a common coefficient is obtained in the unknown to be eliminated.
Given the simultaneous equations:
3x - 5y = -2
2x + y = 3
First step:
Multiply first equation by -2 and multiply second equation by 3,
-6x + 10y = 4
6x + 3y = 9
Second step:
Add the two equations together,
13y = 13
Divide both sides by 13
y = 1
Third step:
Put y = 1 in the first equation
3x - 5(1) = -2
3x - 5 = -2
3x = 5 - 2
3x = 3
Divide both sides by 3:
x = 1
solution (x,y) = (1,1)
Option C
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