What is the area of the triangle enclosed by two coordinate axes and the image of the first-order function y = 6 / 5x + 12

What is the area of the triangle enclosed by two coordinate axes and the image of the first-order function y = 6 / 5x + 12

From y = 5x / 6 + 12,
Let x = 0, y = 12, a (0,12)
Let y = 0, x = - 14.4, ｜ B (- 14.4,0)
S△ABO=1/2·12·14.4=86.4.

Cut off a cylinder with a diameter of 4 decimeters at the bottom and a small cylinder with a height of 2 decimeters. How many square decimeters has the surface area of the original cylinder been reduced?

The reduced surface area was 3.14 × 4 × 2 = 25.12 DM & # 178;

9, 4, 12, 5, how to calculate 24 o'clock fast

12*5-4*9

The graph of the curve X = asin θ + ACOS θ, y = ACOS θ + asin θ (where θ is a parameter) is a.b.c.d
The graph of curve X = asin θ + ACOS θ, y = ACOS θ + asin θ (θ is a parameter)
A. bisector of the first three terms. B. line segment with (- A, - a). (a, a) as the end point. C. line segment with (- √ 2a, - 2A), (- A, - a) as the end point and line segment with (a, a) (√ 2a, √ 2a) as the end point. D. C. (- √ 2a, √ 2a) as the end point

X = asin θ + ACOS θ = √ 2A (sin θ cos45 + cos θ sin45) = √ 2asin (θ + 45) similarly: y = ACOS θ + asin θ = √ 2A (sin θ cos45 + cos θ sin45) = √ 2asin (θ + 45) y = x = √ 2asin (θ + 45) because the value range of sin (θ + 45) is (- 1, not 1), it is formed by (- √ 2a, -

How are feet, inches, and meters converted?

Why do you people only give connections?
1 inch = 25.4cm

If the perimeter of the diamond is 20cm and the ratio of two adjacent angles is 1:2, how long is the shorter diagonal? Please, thank you
It's a process

5cm

It is known that two of the quadratic equations x2-4x + 3 = 0 are m, N and M & lt; n. as shown in the figure, if the parabola y = - x2 + BX + C passes through points a (m, 0) and B (0, n)
(1) (2) if the other intersection of the parabola in (1) and the x-axis is C. according to the image, when x takes what value, the image of the parabola is above the straight line BC? (3) If the area of △ CPE is divided into two equal parts by the straight line BC, the coordinates of point P are obtained

(1) The two roots of ∵ x2-4x + 3 = 0 are & nbsp; & nbsp; X1 = 1, X2 = 3, the coordinates of point a are (1,0), the coordinates of point B are (0,3), and the image of ∵ parabola y = - x2 + BX + C passes through two points a (1,0), B (0,3), and ∵ - 1 + B + C = 0C = 3, and the analytic formula of ∵ parabola is & nbsp

How much does a cubic meter of water actually weigh?

One ton per cubic meter of pure water (distilled water) is exactly one ton, but there should be a little more tap water, but only a few grams more

1. If the product of (x + 5) times (x-a) contains no linear term of X, then the value of a is (?)
2. In the equation (x + m) times (x + n) = x & # 178; + ax + 12, if m, N and a are all positive integers, how many values of a satisfy the condition?
3. If the product of (X & # 178; - MX + 3) times (x-n) does not contain X & # 178; term, then the relation between M and N is (?)
4. If the middle of three consecutive odd numbers is x, then the product of these three odd numbers is (?)

1、 a=5
2、 m+n=a m*n=12 m=1 n=12 a=13 m=2 n=6 a=8 m=3 n=4 a=7
n=1 m=12 a=13 n=2 m=6 a=8 n=3 m=4 a=7
3、m+n=0
4. The third power of x-4x

A problem of using Green's formula to calculate curve integral
∫ (Y & sup2; + x times the 2Y power of E) DX + (X & sup2; times the 2Y power of E + 1) dy
Where l is an arc from point O (0,0) to point a (4,0) along the first quadrant semicircle (X-2) & sup2; + Y & sup2; = 4
Please answer the following questions separately:
1. Green's formula is required. The problem is O -- A, not the positive direction of L. Green's formula requires the positive direction of the region. Do you need to add a negative sign after the calculation?
2. Green's formula must be a closed region, and an arc L1 = OA must be added to form a closed graph, and then the curve integral of L1 is subtracted to calculate the large L, that is, when AOA is calculated, the polar coordinates need to be replaced to calculate the double integral after simplification. Is the integral limit 0 -- 2 / Π D & Oslash; 0 -- 2 times rcox & Oslash; Dr under the quadratic root sign? If not, why?
I don't understand these two places
The answer is 56 / 3

... you are more than most of the cattle B in Baidu, the foundation is very good
Not only the formula is used very well, but also the premise and details are very clear. If you look at these things a little bit, you can definitely be very clear
Multiple integral, line surface integral, draw more pictures... Generally, if you draw a good picture, you will do it