Is there a number whose square equals minus nine,

Is there a number whose square equals minus nine,

Square has only positive number and 0. Because negative can get positive. Positive can get positive. 0 * 0 = 0, it is impossible to count several squares as negative

What is a number whose square equals nine fourths?
(- two thirds) times 9 equals?
The campus area of Jiexiu middle school is about 12000 square meters?
What are the numbers whose absolute value is greater than 1 but not equal to 3? What is their product?
If a times b = 3A + 2b-1, then (- 4) times 6 is?

A number with nine fourths of the square can be
Plus or minus three thirds
(- two thirds) x9
=-6
12000 square meters = the fourth power of 1.2x10
The title should be no more than
There are - 2, - 1,0,1,2
The product is 0
（-4）x6
=-12+12-1
=-1
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If the variables X and y satisfy the constraint condition x + y ≤ 2x ≥ 1y ≥ 0, then the maximum and minimum values of Z = 2x + y are______ ．

Let a (1,0), B (1,1), C (2,0) let z = f (x, y) = 2x + y, translate the line L: z = 2x + y, observe the change of intercept on the Y axis, we can get that when l passes through point a, the objective function Z reaches the minimum; when l passes through point B, the objective function Z reaches the maximum Small value = f (1,0) = 2, Z maximum value = f (2,0) = 4, so the answer is: 2,4

Minimum value of x ^ 2 + y ^ 2-4x + 6y + 15

X^2+Y^2-4X+6Y+15
=(X-2)^2+(Y+3)^2+2
>=2
The minimum value is 2, which is obtained when x = 2 and y = - 3

5 divided by 10 out of 11

5÷10/11
=5×11/10
=11/2
=5.5

In the integral of mathematics, is the merging of similar terms a simplification?

The direct purpose of merging similar items is to simplify

Li Bai walked on the street with nothing to do. He picked up a pot and went to buy wine. When he met the shop, he doubled it. When he saw the flower, he drank a bucket (the bucket was an ancient vessel). When the shop and Hua finished drinking the wine in the pot, he asked how many buckets there were in the pot?

Suppose the original wine x Dou, he meets the shop three times and sees flowers three times at the same time. After the first meeting, the wine is 2x-1; after the second meeting, the wine is 2 (2x-1) - 1; after the third meeting, the wine is 2 [2 (2x-1) - 1] - 1 = 0; solving this equation, we get x = 78 (Dou). A: how much wine is there in the wine pot

How to divide 5 out of 6 and 9 out of 11?
Thank you for the process!

5/6=55/66
9/11=54/66
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1 in 8 / [2 in 9 / (3.4-11 in 15) * 1 in 11

0.125 no thanks

Given that the moving circle P passes through the fixed point a (- 3,0) and is inscribed with the fixed circle B: (x-3) 2 + y2 = 64, then the locus of the center P of the moving circle is ()
A. Line segment B. straight line C. circle D. ellipse

As shown in the figure, let the moving circle P and the fixed circle B be inscribed at m, then the sum of the distances from the center P of the moving circle to two points, that is, the distance between the fixed point a (- 3,0) and the center B (3,0) of the fixed circle is exactly equal to the radius of the fixed circle, that is, | PA | + | Pb | = | PM | + | Pb | = | BM | = 8