Answers
Answer:
B. 0.
Step-by-step explanation:
(x + 2y)dy/dx = 2x - y
dy/dx = (2x -y)/(x + 2y)
Using implicit differentiation and the Quotient Rule:
d^2y/dx^2 = (x + 2y)(2 - y*dy/dx) - ((2x - y)(1 + 2y*dy/dx)) / (x + 2y)^2
At the point (3, 0), dy/dx = (6-0)/(3 + 2(0)) = 2.
So substituting in d^2y/dx^2, we have:
(3 + 0)(2 - 0) - (6-0)(1 + 2(0))/ (3+0)^2
= (6 - 6) / 9
= 0.
Related Questions
Show all your working.
2
3
Income tax
Everyone can earn a certain amount of money without paying tax. This
is called a Personal Allowance. They must pay tax on any earnings
over this allowance.
4
5
6
£11 850
Income tax Personal Allowance, 2018/2019
7
8
This formula gives the amount of Income tax a person pays in a year
T = 0.2 (y-p)
9
10
where T = income tax for the year
y = money earned per year
p = Personal Allowance
11
12
13
14
15
A caterer earns £1375 per month.
Answers
Answer:
The gravitational force acting between the two bodies is given by:
F=G
r
2
m
1
m
2
G=
m
1
m
2
Fr
2
The dimension of the force is [MLT
−2
]
=
[M][M]
[MLT
−2
][L
2
]
=M
−1
L
3
T
−2
find the lengths of lien segments AC & CB
Answers
Answer:
AB = 28cm
point C partitions AB into a ratio 1:3
they say to find the lengths of AC and CB
Usually in maths questions like this look at the order of things placed. Meaning…
ratio — 1:3
find — AC and CB
1 — AC
3 — CB
so now we know
1:3
AC:CB
1+3 = 4
28/4 = 7
7*1 = 7 = AC
7*3 = 21 = CB
Which (I believe) is the second option
A line with a slope of
–
1
8
passes through the points (4,
–
7) and (
–
4,k). What is the value of k?
Answers
Explanation:
(4,k) has the exact same x value as (4,7). Therefore, k = 7 since they are on the same line.
Please answer the question in the image
Answers
Answer:
I don't know i just need the points
The fourthgrade students are taking a field trip and need to rent minivans Each minivan will to 8 people There are 135 people going on the trip. How many people will not be able to go if they only rent 16 minivans?
(A) 6 people
(B) 7 people
(C) 8 people
(D) 9 people
Answers
Use a protractor to measure the
angle. Then identify it as either
acute, right, obtuse, or straight.
Name
Size
Answers
Answer:
Straight angle 180 degrees
6+13+20...+(7n-1) Find the sum.
Answers
Answer:
2.5n+3.5n^2
Step-by-step explanation:
(6+7n-1)*n/2=2.5n+3.5n^2
Each square below represents one whole …. What percent is represented by the shaded area?
Answers
we see that one half of the square is shaded. therefore that’s 1/2. and to cover to a percentage, we multiply the fraction by 100%!
therefore: 1/2 x 100%= 50%
hope this helped❤️
Answer:
50%
Step-by-step explanation:
The diagonal line divides the square in half
I hope this help you
PLEASE HURRY!! (No links)
Solve the inequality
−2 (k − 5) < −2k + 2
Answers
Answer: simplify 0<-8 no solution
Step-by-step explanation:
Every weekday the nursery buys enough milk for 37 children to have 250ml of milk each. An additional two pints per day is bought for the staff.
The milk comes in 4-pint cartons. The price of a carton of milk has increased by 10p.
How much more will the nursery pay for milk each week?
1 litre = 1.76 pints
Answers
Answer:
238.5p or 2.385 pounds per week
Answer: Please ignore the other answers.
Step-by-step explanation:
We stopped using half-pennies in the UK over 50 years ago.
I'm a tutor on the course this is on and I am sick of learners copying this incorrect answer.
a submarine is submerged to a depth of 650 feet below sea level the ascends 225 feet. Determine the current position of the submarine
Answers
Answer:
Step-by-step explanation:
Ascending means moving towards the surface.
So the submarine is 340 feet below sea level.
The submarine ascends 76feet.
∴
340
−
76
=
264
f
e
e
t
below sea level.
Answer: 425 feet
Step-by-step explanation:
650 - 225 = 425
ascend is positive
650 is technically negative
Can 4x + 10 can be simplified to 14x?
Answers
Answer:
NO
Step-by-step explanation:
“PEMDAS” (parenthesis, exponents, multiplication, division, addition, subtraction)
so you need to sole 4x and after add 10
Solve for C:
Spam: deiodhwidweiudjegydjwe
Answers
Answer:
[tex]C=\frac{5F-160}{9}[/tex]
Step-by-step explanation:
Let's solve for C.
[tex]F=\frac{9C}{5}[/tex]
Step 1: Flip the equation.
[tex]\frac{9}{5} C+32=F[/tex]
Step 2: Add [tex]-32[/tex] to both sides.
[tex]\frac{9}{5} C+32+-32=F+-32[/tex]
[tex]\frac{9}{5}C=F-32[/tex]
Step 3: Divide both sides by [tex]\frac{9}{5}[/tex].
[tex]\frac{\frac{9}{5}C}{\frac {9} {5}}=\frac{F-32}{\frac{9}{5} }[/tex]
[tex]C=\frac{5F-160}{9}[/tex]
Answer:
[tex]C=\frac{F-160}{9}[/tex]
Set A contains all prime numbers squared. Set B contains all multiples of 4. How many numbers are in the intersection of Set A and Set B
Answers
Answer:
The intersection operation is denoted by the symbol ∩. The set A ∩ B—read “A intersection B” or “the intersection of A and B”—is defined as the set composed of all elements that belong to both A and B. Thus, the intersection of the two committees in the foregoing example is the set consisting of Blanshard and Hixon.
PLEASE HELP ME IN THIS, THIS ASSIGNMENT IS DUE IN 4 MINUTES, ITS A 6TH GRADER QUESTION
Answers
Answer:
3
Step-by-step explanation:
jesushhhh
.........
1
Show that the matrix C = -2
- 2 3
4-5
--5 6
is symmetric.
3
Answers
42. A football team is at its own 25-yard line. In the next three plays, it loses an average of 4 Yards per play. Where is the team after the three plays?
Answers
4 yards per play * 3 plays = 12 total yards lost
25 - 12 = 13
The circumference of a circle equals 2 r, where r is the radius. Find
the circumference of a compact disc that has a radius of 6.0 cm
Answers
Answer:
The answer is 37.68 or 37.7
Step-by-step explanation:
What you have to do first is find the diameter. So you have to multiply the radius (r) by 2 to get the diameter. 6 times 2 is 12. After that you, will multiply 12 by pi, or 3.14 to get 37.68
(x+5)(x-5) factoring
Answers
Answer: x² - 25
Step-by-step explanation:
The answer will be x^2-25+5x-5x
So that factorised is x squared -25
please work QUICK its a test
Answers
A rope is 225 centimeters long.
You need the rope to be 1.5 meters long.
How many centimeters should you cut off?
Answers
Answer:
1.5 meters = 150 centimeters (multiply by 100)
Therefore, you should cut off [tex]225-150=75[/tex] centimeters.
2/-2.5+4.1+1.2(3+6)/-0.1
Answers
Answer:
-104.7Step-by-step explanation:
2 : (-2.5) + 4.1 + 1.2 * (3+6) : (-0.1 ) =
-0.8 + 4.1 + 10.8 : (-0.1) =
-0.8 + 4.1 + (-108) =
3.3 - 108 =
-104.7
If two events (both with probability greater than 0) are mutually exclusive, then:
Answers
Answer:
they are not independent
Step-by-step explanation:
they are not independent they would be independent if they didn't depend on each other or if the probability didn't affect the other.
Solve the system of linear equations using matrices.
2x+y+z=3
-x+y-6z=-24
x+6y+6z=-4
The solution is ____ (Type an exact answer in simplified form.)
Answers
Answer:
(x, y, z) = (2, -4, 3)
Step-by-step explanation:
It is convenient to let an appropriate calculator reduce the augmented matrix to reduced row-echelon form. The rightmost column in that form is the solution vector [x, y, z].
__
If you want to solve this by hand, you can perform the following row operations to reduce the augmented matrix as shown in the attachment.
r1 ← r2 +r3; r2 ← (r2 +r3)/7 . . . . use this matrix for the next row replacement
r3 ← (r3 -r1 -4·r2)/11 . . . . . . . . . . use this matrix for the next row replacement
r1 ← r1 -2·r2 +5·r3
__
r1, r2, r3 refer to rows 1, 2, 3, respectively. The indicated multiplication and division are scalar operations, operating on each individual term in the row.
_____
Additional comment
Most graphing calculators have matrix solving functions. Apps are available for phone and tablet that will do this, and there are online websites that will reduce an augmented matrix as well.
find the volume……,,..,,,,,…,,,,..
Answers
Answer:
I am pretty sure the answer is 27.02.
Step-by-step explanation:
Hope this helps!
someone help please!!
Answers
Answer:
a - 145
b - 35
c - 145
d - 70
e - 70
f - 110
g - 55
h - 125
i - 55
j - 50
k - 50
l - 130
m - 50
n - 80
o - 50
p - 23
q - 89
r - 68
s - 157
t - 112
u - 48
v - 132
w - 132
x - 48
y - 48
z - 132
A - 48
B - 94
C - 86
D - 94
E - 47
F - 133
If you can do your homework at a rate of 2.6 minutes for every problem, how many problems could be done after 1.78 hours? Round to a whole number.
Answers
Answer:
41
Step-by-step explanation:
Which humanist idea was inspired by ancient Greeks and Romans?
O The government should protect the rights of citizens.
O People should have a say in how their churches are run.
O Formal education is the best way to improve people's lives.
O People can understand the world by using logic and reason to study it.
Answers
Answer:
the answer is c
Step-by-step explanation:
its the right answer lol
Answer:
(C) Formal Education is the best way to improve people's lives
Personally I thought it was (D) but now that I think about it...well yeah
it is predicted that by 2050 there will be 10^10 people living on earth. approximatrly will be 10^12 trees. how many trees for each person?
Answers
Interesting question. Does that mean near the end of humanity?
Solution 1:
10^10 = 1,000,000,000
10^12 = 100,000,000,000
100,000,000,000/1,000,000,000 = 100 trees per person
Solution 2:
10^12 / 10^10 --- 10^10 / 10^10
10^2/1 = 10^2 = 100 trees per person
HELP ME OUT PLEASE!
How many total atoms of Nitrogen are shown in the formula below?
O 2
O 4
O 6
O 8
Answers
Answer:
A) 2
Step-by-step explanation:
It shows it in the formula.