Question

Calculate the air of the surface limited by the parabola which has the equation y=x(x) and the line passing through the points of abscissa -2 and 1 of the parabola.

199

likes
994 views

Answer to a math question Calculate the air of the surface limited by the parabola which has the equation y=x(x) and the line passing through the points of abscissa -2 and 1 of the parabola.

Expert avatar
Brice
4.8
113 Answers
Pour trouver l'aire de la surface limitée par la parabole y=x^2 et la droite passant par les points d'abscisse -2 et 1 de la parabole, nous devons d'abord trouver les points d'intersection de la parabole et de la droite.

La droite passant par les points d'abscisse -2 et 1 de la parabole est définie par deux points (-2, (-2)^2) et (1, 1^2) . Donc, la droite a pour équation y = \frac{3}{3}x+4 .

Nous devons maintenant trouver les points d'intersection entre la parabole y=x^2 et la droite y = \frac{1}{3}x+4 :
x^2 = \frac{1}{3}x+4
x^2 - \frac{1}{3}x - 4 = 0

En résolvant cette équation quadratique, nous trouvons deux solutions pour x, à savoir x=-3 et x=4.

Pour calculer l'aire de la surface limitée par la parabole et la droite, nous devons trouver les limites d'intégration. Pour ce faire, nous trouvons les ordonnées des points d'intersection : (-3, (-3)^2) et (4, 4^2) .

L'aire recherchée est donc donnée par :
A = \int_{-3}^{4} (x^2 - \frac{1}{3}x - 4) \, dx
A = \left[\frac{x^3}{3} - \frac{x^2}{6} - 4x\right]_{-3}^{4}
A = (\frac{64}{3} - \frac{16}{6} - 16) - (-\frac{27}{3} + \frac{9}{6} + 12)
A = \frac{64}{3} - \frac{8}{3} - 16 + \frac{27}{3} - \frac{3}{2} - 12
A = \frac{64-8-48+27-6-72}{6} = \frac{27}{6} = \frac{9}{2}

\boxed{A = \frac{9}{2}}

Frequently asked questions (FAQs)
Find the amplitude, period, asymptotes, and domain of the function f(x) = cot(x).
+
What is the probability of flipping a fair coin 7 times and getting exactly 5 heads?
+
What is the area of a square with a side length of 5cm?
+
New questions in Mathematics
1 + 1
Eight acts are scheduled to perform in a variety show how many different ways are there to schedule their appearances show your work
Y=-x^2-8x-15 X=-7
Calculate the equation of the tangent line ay=sin(x) cos⁡(x)en x=π/2
3(4x-1)-2(x+3)=7(x-1)+2
(5-(4-3)*3)-(8+5))
What’s 20% of 125?
Credit title that represents a payment order. This model, which emerged in Brazil, can only be issued in two specific situations: in the purchase and sale of commercial products or in the provision of services. Select the correct alternative: Question 6Answer The. Present value B. Promissory note w. Present value d. Duplicate It is. Bill of exchange
During a fishing trip Alex notices that the height h of the tide (in metres) is given by h=1−(1/2)*cos(πt/6) where t is measued in hours from the start of the trip. (a) Enter the exact value of h at the start of the trip in the box below.
It is known that the content of milk that is actually in a bag distributes normally with an average of 900 grams and variance 25 square grams. Suppose that the cost in pesos of a bag of milk is given by 𝐶(𝑥) = { 3800 𝑠𝑖 𝑥 ≤ 890 4500 𝑠𝑖 𝑥 > 890 Find the expected cost.
Convert 5/9 to a decimal
Which of the methods below can be used to workout 95% of an amount? a. Dividing the amount 100 and multiply by 95 b. Working out 5% of the amount and taking it away from the full amount c. Dividing 95 by 100 and multiplying the answer by the amount d. Dividing the amount by 95 and then multiply by 100
At the dance there are 150 boys the rest are girls. If 65% are girls what is the total amount in the room
Find the minimum value of the function y = -4 x3 + 60 x2 -252 x + 8 for values of x between x = 0 and x = 9 Enter the value of the function, not the value of x
16.What payment (deposit) made at the end of each month will accumulate to $10473 in 13 years at 7.9% compounded monthly? Enter to the nearest cent (two decimals). Do not use $ signs or commas in the answer.
A natural gas company has a fixed rate of 1,320 pesos plus 1,590 pesos per cubic meter of gas consumed monthly per customer. Indicate the cost function to determine the value in pesos of the cubic meters of gas consumed in a month per customer. How much did a customer who consumed 18 cubic meters of gas pay? If a customer paid 34,710 pesos, how many cubic meters of gas did he consume?
The blood types of individuals in society are as follows: A: 30%, B: 25%, AB: 20%, 0: 25%. It is known that the rates of contracting a certain disease according to blood groups are as follows: A: 7%, B: 6%, AB: 7%, 0: 4%. Accordingly, if a person selected by chance is known to have this disease, what is the probability of having blood group O?
Square root of 169 with steps
y’’ -4y’ +4y = (12x^2 -6x)e^2x Y(0)= 1 Y’(0)=0 Y(x)=c1y1+c2y2+yp
An invoice for €2,880 plus default interest of €48.40 was paid on October 28th. Interest rate 5.5%. When was the bill due?