To sketch the domain of the function f(x, y, z) = ln(36 − 4x² − 9y² − z²), we need to analyze the argument of the natural logarithm function and determine the values of (x, y, z) that will make it greater than 0. The natural logarithm function is defined only for positive values, so it is important to consider this in our domain analysis.
Now, let's find the domain of f(x, y, z):
f(x, y, z) = ln(36 − 4x² − 9y² − z²)
The argument of the logarithmic function, 36 − 4x² − 9y² − z², must be positive:
36 − 4x² − 9y² − z² > 0
Solving for z²:
z² < 36 − 4x² − 9y²
Since z² is always greater than or equal to zero, we get:
0 ≤ z² < 36 − 4x² − 9y²
Solving for y²:
y² < (36 − 4x² − z²)/9
Similarly, since y² is always greater than or equal to zero, we get:
0 ≤ y² < (36 − 4x² − z²)/9
Solving for x²:
x² < (36 − 9y² − z²)/4
Again, since x² is always greater than or equal to zero, we get:
0 ≤ x² < (36 − 9y² − z²)/4
Therefore, the domain of the function f(x, y, z) is:
{(x, y, z) | 0 ≤ x² < (36 − 9y² − z²)/4, 0 ≤ y² < (36 − 4x² − z²)/9, 0 ≤ z² < 36 − 4x² − 9y²}
We can visualize this domain as the region that lies below the ellipsoid 4x² + 9y² + z² = 36.
To know more about domain visit:
https://brainly.com/question/30133157
#SPJ11
solve for A and line AB
Answer:
a = 22
AB = 50
Step-by-step explanation:
\(a-5=17\)
\(a=17+5\)
\(a=22\)
Line AB=2a+6
\(2(22)+6=44+6=50\)
\(AB=50\)
Hope this helps
how to find absolute maximum and minimum of a function
To find the absolute maximum and minimum of a function, determine the critical points and evaluate the function at those points and the endpoints of the interval.
To find the absolute maximum and minimum of a function, you need to follow these steps:
1. Determine the critical points of the function by finding where its derivative equals zero or is undefined. These points can be potential candidates for the maximum or minimum values.
2. Evaluate the function at the critical points and at the endpoints of the interval you are considering. The highest value among these points will be the absolute maximum, while the lowest value will be the absolute minimum.
Let's illustrate this with an example:
Consider the function f(x) = x^2 - 4x + 5 on the interval [0, 5].
1. To find the critical points, we need to find where the derivative is equal to zero or undefined. Taking the derivative of f(x),
we get f'(x) = 2x - 4.
Setting this equal to zero gives us 2x - 4 = 0, which implies x = 2. So, x = 2 is the only critical point.
2. Now, we evaluate the function at the critical point and the endpoints of the interval:
f(0) = 0^2 - 4(0) + 5 = 5
f(2) = 2^2 - 4(2) + 5 = 1
f(5) = 5^2 - 4(5) + 5 = -5
From these evaluations, we see that f(0) = 5 is the absolute maximum and f(5) = -5 is the absolute minimum.
To know more about absolute maximum visit:
https://brainly.com/question/31585619
#SPJ11
For which quadratic equation is the axis of symmetry x = 3
a. y = -x2 + 3x + 5
b. y = -x2 + 6x + 2
c. y = x2 + 6x + 3
d. y = x2 + x + 3
Answer:
b) y = -x2 + 6x + 2
Step-by-step explanation:
Find the surface area of the cube.
3/5 inches
Step-by-step explanation:
Area of the cube : 6a²
6 ( 3/5)²
6 (9/25)
54/25
54/25 = 2.16
Awhina is constructing an electromagnet to demonstrate at the upcoming science fair. She is using wire, a nail, and a battery. Awhina also wants to make a chart to show which direction the magnetic field is flowing for each of her electromagnets. Describe how she would determine the direction of the magnetic field for the electromagnets. Include a description of how the magnetic field appears around the looped wire.
Answer:
The magnetic is stronger when it is closer to the wires. the magnets rotates around the wire. she can determine the directions by telling if it is repelling or attracting objects that contain iron.
A magnet is stronger when closer to the wires It rotates around the wire. she can determine the directions by telling if it is repelling or the attracting objects have contained iron.
What is an electromagnet ?An electromagnetic is a type of magnet that makes a magnet field that is produced by the electric current. They consist of a wire placed around a coil.
The current in the wire creates the magnetic effect and the wire turn of the magnetic core which consists of the magnetic flux. this makes the magnet is more powerful.
They are widely used for motors and electrical devices. As the magnet rotates closer to the wire as she can determine the repelling force of the object that is containing the iron.
Find out more information about the demonstration.
brainly.com/question/11164829.
For each set of values for a and b evaluate the given expressions and record your answers in the table. ( I only need this one).
A = -1/2 B =6
A divided by -b
PLEASE HELP
Answer:
Set1 = 1/12
Set2 = 1/12
Set3 = -12
Step-by-step explanation:
Substitute, use Keep-Change-Flip to handle division when there's fractions involved. See image.
Also to multiply fractions, multiply
top×top and bottom×bottom straight across. Also negative times a negative is a positive and negative is like opposite so -(-6) is 6 and -(-1/2) is 1/2.
see image.
What is an equation of the line that passes through the point (−1,6) and is parallel to the line 2x+y=92x+y=9?
A linear equation is the equation of a line.The equation which is passing through the point (-1,6) and parallel to the line -2x+y=9 is -2x + y = 8.
What is a linear equation?A straight line on the coordinate plane is represented by a linear function.
A linear function is a function that varies linearly with respect to the changing variable.
A linear equation in slope y-intercept form is written as,
y = mx + c where m is the slope while c is the y-intercept.
Given equation is -2x+y=9
y = 2x + 9 so slope m is 2.
Since parallel lines have the same slope so equation will be,
y = 2x + c
Substitute,(-1,6)
6 = 2(-1) + c → c = 8
So,
y = 2x + 8 → -2x + y = 8.
Hence "A linear equation is the equation of a line. The equation which is passing through the point (-1,6) and parallels to the line -2x+y=9 is -2x + y = 8".
For more about the linear function,
brainly.com/question/21107621
#SPJ1
The given question is incorrect correct question follows ;
Find the equation of the line passing through the point (-1,6) and parallel to the line -2x+y=9
PLEASE HELP ASAP
The equation (x + 56) / 3 = 5x models the workload of a class project, where x is the number of hours each student must contribute. How many hours does each student work on the project?
I think it's 4 hours because when I plug it into the equation, it shows 20 = 20 indicating it's correct. I need some verification tho.
10 hours
9 hours
7 hours
4 hours
Answer:
Step-by-step explanation:
the answer is 7 hours not 4 hours
Answer:
Yes, 4 hours
Step-by-step explanation:
\(\frac{x + 56}{3} = 5x\) Multiple both sides by 3
x + 56 = 15x Subtract x from both sides
56 = 14x Divide both sides by 14
4 = x
*
3. Determine which group of points are coplanar. *
T
S
0
IR
.
OF
D
А
B
R, B, D, Q
O Q, A, T, B
O T, C, D, S
Answer:Points, Lines, and Ang. A midpoint is a point that bisects, or divides, a line segment into two congruent pi. Point B is the midpoint of AC
Step-by-step explanation:
a tree has degree sequence (6,6,6,6,4,...), where the rest of the vertex degrees are either 2 or 1. find the number of vertices with degree 1.
The tree has 11 vertices with degree 1.
To find the number of vertices with degree 1 in a tree with degree sequence (6,6,6,6,4,...), we can use the Handshaking Lemma. This lemma states that the sum of all vertex degrees in a graph is twice the number of edges. In a tree, the number of edges is one less than the number of vertices, so we can write:
6+6+6+6+4+...+2+2+1+1 = 2n-1
where n is the number of vertices. Simplifying this equation gives:
n = (6+6+6+6+4+...+2+2+1+1+1)/2 + 1
The term inside the parentheses is the sum of all vertex degrees, which we know from the degree sequence. Plugging in the values and simplifying, we get:
n = 18
So the tree has 18 vertices. Since we know that the rest of the vertex degrees are either 2 or 1, we can subtract the six vertices with degree 6 and the one vertex with degree 4 to get:
18 - 6 - 1 = 11
For more about vertices:
https://brainly.com/question/31502059
#SPJ11
What is the answer. To this,
Answer:
a
Step-by-step explanation:
a
geometry- finding radius of a circle. please only answer if you actually know. it would help so much
Answer:
D
Step-by-step explanation:
For a circle, the equation of the circumference is c = π * 2r (radius). Since in this case, the circumference is 15.3, that means π * 2r = 15.3. I'm going to assume that pi is 3.14 because the four answers aren't particularly close to each other. This means that 2r = approx. 4.872. If you then divide both sides by 2 you get r = approx. 2.436, which is closest to answer D.
work out 7 2/3 + 2 1/5
Answer:
9 and 13/15 or 148/15
Step-by-step explanation:
Hope this helps!
The school that Jenny goes to is selling tickets to a choral performance. On the first day of ticket sales the school sold 14 adult tickets and 14 child tickets for a total of $322. The school took in $188 on the second day by selling 12 adult tickets and 1 child ticket. What is the price of each of one adult ticket and one child ticket?A. Adult Tickets: $17, Child Ticket: $12B. Adult Tickets: $15, Child Ticket: $8C. Adult Tickets: $9, Child Ticket: $3D. Adult Tickets: $24, Child Ticket: $13
The price of one adult ticket is $15 and the price of one child ticket is $8.
Two sets of equations can be derived from this question:
14a + 14c = 322 equation 1
12a + c = 188 equation 2
These equations are known as simultaneous equations and they can be solved to determine the cost of each ticket using the elimination method.
In order to determine the cost of the adult's ticket multiply equation 2 by 14
168a + 14c = 2632 equation 3
Subtract equation 1 from 3
2310 = 154a
Divide both sides by 154
a = $15
To determine the cost of the children's ticket substitute for a in equation 1
14(15) + 14c = 322
210 + 14c = 322
322 - 210 = 14c
112 = 14c
c = $8
To learn more about simultaneous equations, please check: brainly.com/question/23589883?referrer=searchResults
Renting Cars Floppy Jalopy Rent-a-Car has 25 cars available for
rental-20 big bombs and 5 midsize cars. If two cars are selected at
random, what is the probability that both are big bombs?
The probability that both are big bombs is 19/30 or 0.63 if the renting Car's Floppy Jalopy Rent-a-Car has 25 cars available for rental-20 big bombs and 5 midsize cars. If two cars are selected at random.
What is probability?It is defined as the ratio of the number of favorable outcomes to the total number of outcomes, in other words, the probability is the number that shows the happening of the event.
We have:
Renting Cars Floppy Jalopy Rent-a-Car has 25 cars available for rental-20 big bombs and 5 midsize cars. If two cars are selected at random.
Total number of outcomes = C(25, 2) = 300
Total number of favorable outcomes = C(20, 2) = 190
Probability = 190/300 = 19/30 or
= 0.63
Thus, the probability that both are big bombs is 19/30 or 0.63 if the renting Car's Floppy Jalopy Rent-a-Car has 25 cars available for rental-20 big bombs and 5 midsize cars. If two cars are selected at random.
Learn more about the probability here:
brainly.com/question/11234923
#SPJ1
A parallelogram with a base of 22 and one-half feet and a height of 19 and one-fourth feet.
What is the area of the parallelogram?
four hundred twenty-three and one-half ft2
four hundred twenty-seven and one-half ft2
four hundred thirty-three and one-eighth ft2
four hundred fifty-five and one-eighth ft2
The area of the parallelogram, that have a base length of 22 and one-half feet, and a height of 19 and one-fourth feet is 433 and one-eight square feet. The correct option is therefore;
Four hundred thirty-three and one-eighth ft²
What is a parallelogram?A parallelogram is a quadrilateral that has a pair of opposite sides that are parallel. The area of a parallelogram, A, of base length, b, and height, h can be presented as ; A = b·h
The base length of the parallelogram = 22 1/2 feet
Height of the parallelogram = 19 1/4 feet
Area of a parallelogram = Base length × Height
Therefore; The area of the parallelogram = 22 1/2 × 19 1/4 = 433 1/8
The area of the parallelogram = 433 1/8 square feet
The third option is correct;
Four hundred thirty-three and one-eight ft.²Learn more on parallelograms here: https://brainly.com/question/29130284
#SPJ1
Please help 60 points for a rapid answer-In the figure below which of the following is true in circle E?
Answer:
all 3 options are true : A, B, C
Step-by-step explanation:
warning : it has come to my attention that some testing systems have an incorrect answer stored as right answer for this problem.
they say that A and C are correct.
but I am going to show you that if A and C are correct, then also B must be correct.
therefore, my given answer above is the actual correct answer (no matter what the test systems say).
originally the information about the alignment of the point F in relation to point E was missing.
therefore, I considered both options :
1. F is on the same vertical line as E.
2. F is not on the same vertical line as E.
because of optical reasons (and the - incomplete - expected correct answers of A and C confirm that) I used the 1. assumption for the provided answer :
the vertical line of EF is like a mirror between the left and the right half of the picture.
A is mirrored across the vertical line resulting in B. and vice versa.
the same for C and D.
this leads to the effect that all 3 given congruence relationships are true.
if we consider assumption 2, none of the 3 answer options could be true.
but if the assumptions are true, then all 3 options have to be true.
now, for the "why" :
remember what congruence means :
both shapes, after turning and rotating, can be laid on top of each other, and nothing "sticks out", they are covering each other perfectly.
for that to be possible, both shapes must have the same basic structure (like number of sides and vertices), both shapes must have the same side lengths and also equally sized angles.
so, when EF is a mirror, then each side is an exact copy of the other, just left/right being turned.
therefore, yes absolutely, CAD is congruent with CBD. and ACB is congruent to ADB.
but do you notice something ?
both mentioned triangles on the left side contain the side AC, and both triangles in the right side contain the side BD.
now, if the triangles are congruent, that means that each of the 3 sides must have an equally long corresponding side in the other triangle.
therefore, AC must be equal to BD.
and that means that AC is congruent to BD.
because lines have no other congruent criteria - only the lengths must be identical.
I need help on this !! Please
Answer:
Step-by-step explanation:
What is the equation of the line that is parallel to the the line y-1 =4 (x+3) and passes through th point (4,32)
Please help me with this question!!!!!
h = 11.9 cm
cos = adjacent/ hypotenuse
therefore:
cos(24) = h/ 13
rearrange:
h = 13cos(24)
put into calculator:
h = 11.8760...
rounded to one decimal point:
h = 11.9cm
14 boxes of candles were sold for $91.00 what is the cost of 1 box?
Answer:$6.50
Step-by-step explanation:
if you divide 91 by 14 you get 6.5 which makes one candle $6.50
please help again forgot everything
Answer:
a
Step-by-step explanation:
to find a proportion they must equal each other
8/4 in its simplest form is just 2
to make r/3 = 2 r must be 6
6/3 is 2
HELP ME PLEASE!!!!! ITS EASY 10 POINTS
Answer:
x=3
Step-by-step explanation:
Answer:
x = 3
Step-by-step explanation:
I did this on a quiz and I got it right :)
Robert has a steel barrel with a diameter of 6 feet that can be filled to a depth of 4.9 feet with oil. What is the volume of the barrel?
Use pi = 3.14
A.
102.174 cubic feet
B.
162.594 cubic feet
C.
138.474 cubic feet
D.
132.3 cubic feet
The volume of the steel barrel with the given diameter and depth is 138.474ft³.
Hence, option C) 138.474 cubic feet is the correct answer.
What is a cylinder?A cylinder is simply a 3-dimensional shape having two parallel circular bases joined by a curved surface.
The volume of a cylinder is expressed as;
V = π × r² × h
Where r is radius of the circular base, h is height and π is constant pi ( π = 3.14 )
Given the data in the question;
Diameter of the steel barrel d = 6ftRadius r = d/2 = 6ft/2 = 3ftDepth or height h = 4.9ftConstant pi π = 3.14Volume of the steel barrel V = ?
We substitute our values into the expression above.
V = π × r² × h
V = 3.14 × (3ft)² × 4.9ft
V = 3.14 × 9ft² × 4.9ft
V = 138.474ft³
The volume of the steel barrel with the given diameter and depth is 138.474ft³.
Hence, option C) 138.474 cubic feet is the correct answer.
Learn more about volume of cylinder here: brainly.com/question/16788902
#SPJ1
Evaluate the expression:
(−9)4
Answer:
-36
Step-by-step explanation:
Answer:
6561
Step-by-step explanation:
Morgan and Donna are cabinet makers. When working alone, it takes Morgan 8 more hours than Donna to make one cabinet. Together, they make one cabinet in 3 hours. Find how long it takes Morgan to make one cabinet by herself.
For Morgan to make one cabinet by alone, it will take 12 hours.
Representing the problem MathematicallyAssuming Donna takes "x" hours to make one cabinet.
Morgan takes 8 more hours
Then , Donna = "x + 8" hours to make one cabinet.
Working together , time taken = 3 hours.
We can set up an equation based on their rates of work:
1/(x + 8) + 1/x = 1/3
(1 * x + 1 * (x + 8)) / ((x + 8) * x) = 1/3
(x + x + 8) / (x² + 8x) = 1/3
(2x + 8) / (x² + 8x) = 1/3
3(2x + 8) = x² + 8x
6x + 24 = x² + 8x
Rearranging the equation:
x² + 2x - 24 = 0
Now we can factor or use the quadratic formula to solve for "x." Factoring the equation:
(x + 6)(x - 4) = 0
x + 6 = 0 or x - 4 = 0
x = -6 or x = 4
Since we are considering time, the solution cannot be negative. Therefore, x = 4, which means it takes Donna 4 hours to make one cabinet.
Morgan's time = 4 + 8 = 12 hours
Therefore, it takes Morgan 12 hours to make one cabinet by herself.
Learn more on equations: https://brainly.com/question/29133548
#SPJ1
Write the equations for the system of inequalities in slope-intercept form.
I uploaded the photo.
HELP ME PLEASE AND THANK YOUUUU
Answer:
y>-2
y<-4x+2
Step-by-step explanation:
A. y>-2
The reason is because the line is horizontal which means the slope is 0 and your "y" value equals a number (0,#) so your line starts on -2 so it would just be -2 and since it is shaded above then "y" is greater than -2.
B. y<-4x+2
The reason is because you start with your slope (2) and go done to where the line crosses another point (in your case the other point is -2) and then you go over to the right where that specific point is plotted (so your coordinate that is plotted is (1,-2)). So, however many units you go down is the slope (in your problem (-4)) and however many you go over is also part of the slope but it can be either a whole number or fraction but for you it is just (-4) because you only go over to the right once. So now you have your equation -4x+2. And since the lines shading is below that means "y" is less than your equation.
And the reason why both lines are less than and greater than is because they are dotted lines if they were solid they would be "less than or equal" to or "greater than or equal to"
I hope this helped!
Helppp!!!
\( \dfrac{2}{15} \div \dfrac{20}{3} \)
.........
\({\huge \underline{{ \fbox \color{red}{A}}{\fbox \color{green}{n}}{\fbox \color{purple}{s}}{\fbox \color{brown}{w}}{\fbox \color{yellow}{e}}{\fbox \color{gray}{r } }}}\)
\( \sf \dfrac{2}{15} \div \dfrac{3}{20} = \dfrac{2 \times 20}{15 \times 3} = \dfrac{40}{45} = \dfrac{8}{9} \)
Answer :-
\( \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \sf \Rrightarrow \dfrac{8}{9} \)
I hope I've helped : )
\(\dfrac{1}{50}\)
Step-by-step explanation:1. We multiply.\( \cfrac{2}{15} \times \cfrac{3}{20} \)
2. We join the fractions and put it only in 1.\( \cfrac{2 \times 3}{15 \times 20} \)
3. We multiply the one above which is 2 × 3.\( \cfrac{6}{15 \times 20} \)
4. Now we will multiply the below.\( \cfrac{6}{300} \)
5. Now we simplify.\( \cfrac{1}{50} \)
-------------------------------------------------------------------------------------------------------
Learn more about solving fractions here:
https://brainly.com/question/16627508
https://brainly.com/question/29121733
What is the y-value of the vertex of the function f(x)=â’(xâ’3)(x 11)?.
Answer:
What is the y-value of the vertex of the function f(x)=â’(xâ’3)(x 11) 1060 by cata
can u help me please
Answer:
xy=1.5
-7x=1.75
x+2y=-12.25
(1/3)y=-2
Step-by-step explanation: