Find d^2y/dx^2 if y/x^2 = 10
A. 0
B. (2y)/x
C. 20
D. y/x
E. (x-2y)/x
Answer:
C. 20
Step-by-step explanation:
[tex] \frac{y}{ {x}^{2} } = 10 \\ \\ y = 10 {x}^{2} \\ \\ differentiating \: w.r.t. \: x \: on \: both \: sides \\ \\ \frac{dy}{dx} = 10 \frac{d}{dx} {x}^{2} \\ \\ \frac{dy}{dx} = 10 \times 2{x} \\ \\ \frac{dy}{dx} = 20{x} \\ \\ differentiating \: again\: w.r.t. \: x \: on \: both \: sides \\ \\ \frac{d}{dx} \bigg(\frac{dy}{dx} \bigg)= 20\frac{d}{dx} {x} \\ \\ \frac{ {d}^{2} y}{d {x}^{2} } = 20 \times 1 \\ \\ \huge \purple {\frac{ {d}^{2} y}{d {x}^{2} } } \red{= } \orange{20}[/tex]
what is the total area of the (outside) square shown at the right?
Answer: 8
Step-by-step explanation: ADD ALL THE SIDES TOGETHER
Help me pleasee (10 points)
Answer:
B
Step-by-step explanation:
Givens
a^2 + b^2 = c^2
a = 4x
b = x + 2
c = 3x + 4
Solution
(4x)^2 + (x + 2)^2 = (3x + 4)^3 Remove all the brackets.
16x^2 + x^2 + 4x + 4 = 9x^2 + 24x + 16 Collect like terms on the left
17x^2 + 4x + 4 = 9x^2 + 24x + 16 Subtract the terms on the right
8x^2 - 20x - 12 = 0
This factors into
(4x - 12)(2x + 1)
There are 2 answers
4x - 12 = 0
4x = 12
x = 12/4
x = 3
or
2x + 1 = 0
2x = - 1
x = - 1/2
You have to look at x = -1/2 carefully. The problem is that 4x = 4*(-1/2) = - 2 which is not possible in Euclidean Geometry.
So the only answer is x = 3
Translate the following sentence to an inequality. A number is no less than seven.
Answer:
X > 7
Step-by-step explanation:
X > 7
Answer:
b
Step-by-step explanation:
if I have 315 bags of cat food and 9 shelfs what is the long division answer to putting them on equal shelf
Answer:
45 is the answer! Check the photo to see the long division problem!
Step-by-step explanation:
i need help
what is 2/5 + 3/7 + 5/6?
Answer:
1.6
Step-by-step explanation:
just a short version of what the person above said :)
god bless you hun.
615.44 rounded to the nearest hundereth
ill give 5 points
Answer:
615.44 (already rounded)
Step-by-step explanation:
Answer (it stays the same):
615.44
I hope this helps!
Jack bought 4 pounds of grapes for $10.00.
Find the unit price.
Answer: $
per pound
pls answer i’ll mark you as a brainlist or whatever it’s called
Answer:
2.5$ per pound
Step-by-step explanation: 10 divided by four is 2.5
4 x 2.5 equals 10
Best estimate of a carton of milk in millimeters.
Answer: 12 millimeters
Step-by-step explanation:
Answer: 12 millimeters.
Step-by-step explanation:
WIILL GIVE BRAINLEST PLZZZ ANSWER find the opposite 0,3,-4,11,-12
You do not repeat the same number in the domain of a relation.
How do you work this out
Pls help.. quick.....
Vicki is 5 years older than twice Ella's age, a.
The sum of Vicki's and Ella's age is 29.
Which equation represents this relationship?
Answer:
5+3a=29
Step-by-step explanation:
let Ella's age be 'a'
Vicki's age=5+2a
sum of their ages= 29
So, the equation is
(5+2a)+a=29
5+3a=29
hope this helps!
Answer:
(5+2a) + 2a=29
Step-by-step explanation:
David uses 2/3 cup of milk to bake a batch of muffins. He wants to make 12 batches of muffins for a fundraiser. How much milk does he need to make 12 batches?
Answer: 8
Step-by-step explanation:
12*2/3=8
Each side of a rectangle must be perpendicular to two of its other sides. Is it possible for a rectangle to be formed by the intersections of the lines y=4x−7, y=−14x+2, y=−4x+2, and y=−14x−2? Justify your answer.
A. Yes, one of the lines is perpendicular to two other lines, so a rectangle can be formed
B. Yes, each line is perpendicular to two other lines, so a rectangle can be formed
C. No, one of the lines is not perpendicular to any of the lines, so a rectangle cannot be formed.
D. No, each of the lines is perpendicular to only one other line, so a rectangle cannot be formed.
Please help fast!
(15 points)
Answer:
its C not A
Step-by-step explanation:
HELP 6TH GRADE MATH
Enter the phrase as an algebraic expression. b divided by 9
Answer:
[tex]\frac{b}{9}[/tex] An algebraic expression is just an equation without an answer
x^2- 6x - 7 = 0 can someone help me solve this by completing the square
A manufacturer produces three models of bicycles. The times (in hours) required for assembling, painting, and packaging each model are shown in the table below: Model A Model B Model Assembling 2 2.5 3 Painting 1.5 2 1Packaging 1 0.75 1.25 The total time available for assembling is 4006 hours, for painting is 2495 hours, and for packaging is 1500 hours. The profits per unit are $45 for Model A. $50 for Model B and $55 for Model C. What is the optimal production level for each model, and what is the optimal profit? A) Set up the objective function. B) Set up the constraints in inequality form.C) Rewrite your answer to (b) as equations with slack variables.D) Write the initial tableau for solution via the simplex method.
Answer:
we have to maximize the following equation:
45A + 50B + 55C
where:
A = number of model A bicycles produced
B = number of model B bicycles produced
C = number of model C bicycles produced
the constraints are:
2A + 2.5B + 3C ≤ 4006 (assembly constraint)
A + 0.5B + 2C ≤ 2495 (painting constraint)
A + 0.75B + 1.25C ≤ 1500 (packaging constraint)
A,B,C ≥ 0
using solver, the optimal solution is: 745A + 1006B = $83,825
using slack variables:
2A + 2.5B + 3C + S1 = 4006 (assembly constraint)
A + 0.5B + 2C + S2 = 2495 (painting constraint)
A + 0.75B + 1.25C + S3 = 1500 (packaging constraint)
A,B,C,S ≥ 0
slack variable tableau:
A B C S1 S2 S3 Z B
2 2.5 3 1 0 0 0 4006
1 0.5 2 0 1 0 0 2495
1 0.75 1.25 0 0 1 0 1500
-45 -50 -55 0 0 0 1 0
Skip and Jena are selling raffle tickets to raise money for new basketball uniforms. Skip sold 2 tickets for every 7 tickets that Jena sold. If Jena sold 63 tickets how many did Skip sell? Use a double number line and equivalent ratios to justify your answer. please use a double number line to show your work
Answer:
gidetgfddtgfft5f5f5f5d5f6guhuhug5xtdrd4s4d5d6v7g7h8n8b7v6v6
Answer:
Let J represent the number of tickets Jose sells. Let M represent the number of tickets Mark sells. Make equations, if Mark sells 15 more tickets than Jose, the equation is J+15=M. Because we know that in between both of them they sell 63 raffle tickets, then M+J=63. Now plug in the value of M (J+15) into M+J=63. And you get (J+15)+J=63, which is 2J+15=63. Subtract 15 from both sides and get 2J=48. Now divide 48 by 2, J=24. So now you know Jose sold 24 tickets, and to find how many Mark sold, plug in 24 into J+15=M and get 24+15=M where M is 39. Now check, 24+39=63. So Mark sold 39 tickets and Jose sold 24.
Step-by-step explanation:
please help with my math question on my account :3
Answer:
okie dokie
Step-by-step explanation:
WILL MARK AS BRAINLIEST!!!!!
Answer:
y=8x
Step-by-step explanation:
5/7 x=40
a.28
b.96
c.20
d.100
pls help
In Triangle ABC, angle A measures 40 degrees. Give possible angle measures for B and C.
Answer:
B = C = 70°
Step-by-step explanation:
In Triangle ABC, angle A measures 40 degrees.
We need to find the possible angle measures for B and C if ABC is in isosceles triangle.
For an isosceles triangle, two sides of a triangle are equal. We know that if two sides are equal, the corresponding angles are equal. Let equal angles are x. The sum of an isosceles triangle is equal to 180 degrees. So,
40 + x +x = 180
40 + 2 x = 180
2x = 140
x = 70 degrees
So, the possible angle measures for B and C is equal to 70°.
Help me out really fast please
Answer:
it would be D.
Answer: Use the same counter weight.
Step-by-step explanation: It should be the controlled variable whereas the ball would be the independent, and the distance the dependent.
Help what should I choose????????
Answer: C, However
Step-by-step explanation:c
The ratio of catfish to trout in the local pond is 1 to 3 if there are 200 catfish in the pond how many trout are there
Answer:
600 trout
Step-by-step explanation:
200x3=600
Easton practices the piano the same number of minutes each day. The relationship between the number of days, x, and the total number of minutes he practices, y, is represented by the graph below. A point (8, 200) is labeled below. Which statement about the graph is true?
The true statement about the graph is that it shows a proportional relationship
How to determine the true statement about the graphFrom the question, we have the following parameters that can be used in our computation:
The graph (added as an attachment)
On the graph, we have the following observations and highlights
The graph is represented by a straight lineThe line of the graph passes through the originThe line of the passes through the point (8, 200)Using the above as a guide, we have the following:
A graph that has the above features is not just a linear equation, it is a proportional linear equation
This means that it has a unit rate
And the unit rate is
Unit rate = 200/8
Unit rate = 25
Hence, the graph shows a proportional relationship
Read more about proportional relationship at
https://brainly.com/question/14425347
#SPJ1
Find the Vertices of PQR, shown below, for a dilation with center (0,0) and scale
factor 2. Provide the rule and all three prime points. Is this a reduction or an
enlargement?
Answer:
reduction
Step-by-step explanation:
Answer:
Step-by-step explanation:
3/5x + 7 = 12
What is the value of x?
the answer is x is equal to 0.6
