My mother cares about my growth and changes my mistakes

My mother cares about my growth and changes my mistakes

care

Is "mother cares for me very much" a sick sentence?
Isn't love the meaning of care and love? How can we use care instead of love?

Care can not be used for mother, mother is care, teacher is care

If a parallelogram and a triangle are of equal base and height, the sum of their areas is 45 square meters, then the area of a parallelogram is () square meters
It's not enough to add the above questions: the area of the triangle is () square meters,

The solution consists of a parallelogram and a triangle with equal base and height
The area of a parallelogram is twice that of a triangle
The sum of their area is 45 square meters
know
The area of a parallelogram is (30) square meters, and that of a triangle is (15) square meters

- 44, - 43, - 42, ··· 0,1,2,3, ··· 20052006 in a series of continuous integers, what is the sum of the first 100 numbers?
I'm going to answer

First determine the first 100 numbers
-44,-43…… 54,55
And - 44, - 43 The sum of 43 and 44 is 0
So just calculate 45, 46 The sum of the 11 numbers 54 and 55 is good
45*11+1+2+…… +10
=495+55
=550
It can also be calculated as (55 + (- 44)) × 50 = 11 × 50 = 550

In the equilateral triangle ABC, D and E are BC and AC respectively, a point AE = CD, ad and be intersect at a point F, AF = 1 / 2
Take point G on AB, make BG = AE = CD, connect CG, CG and be, ad intersect m, n respectively
Triangle BCM is equal to triangle ANC is equal to triangle BFA
Then BF = cm = an, AF = BM = CN
Because AF = 1 / 2BF
So CN = NF = FM = Mn
So FN = Mn = NC
So CFM = 90 degrees
So CF vertical be, but I want to know FN = Mn = NC
So CFM = 90 degrees, why?

It can be known that the triangle FMN is an equilateral triangle, the angle FCN = 1 / 2, the angle FNM = 30 degrees, and the angle FMN is 60 degrees, then the angle CFM is 90 degrees

1 ,2 ,2 ,3 ,8/3 ,（ ） A、10/3 B、4 C、15/4 D、5
That's right. That's the title

The answer is c. the result of multiplication of the former and the latter is an arithmetic sequence of 2,4,6,8,10!

As shown in the figure, the area of a rectangle is 60 square centimeters. Three equal length lines with an angle of 120 ° divide the rectangle into two trapezoids and a triangle. How many square centimeters is the area of a trapezoid?

FG ⊥ BC is made at g through F. because ∠ BFC = 120 °, BF = CF = EF, so ∠ FBG = 30 °, so EF = BF = 2fg, so FG = 13eg, so △ BFC = area of rectangle × 16 = 10 (square centimeter) (60-10) △ 2 = 50 △ 2 = 25 (square centimeter). Answer: the area of a trapezoid is 25 square centimeter

If x is the solution of the equation lgx + x = 2, then x belongs to the interval
75,2) I've solved that x belongs to (1,2)

Let f (x) = lgx + X-2
F (x) is monotonically increasing
f(2)=lg2>lg1=0
f(1)=1-2=-1

Someone took a bamboo pole and went into a 3-meter-wide rectangular gate. He took it horizontally but couldn't get in. Then he took it vertically. As a result, the bamboo pole was 1 meter higher than the gate
When holding it diagonally, the two ends are just opposite the gate. How long is the bamboo pole? (using Pythagorean theorem)

If the length of the bamboo pole is x meters, the height of the gate is X-1 meters
On the Pythagorean theorem
3^2+(x-1)^2=x^2
9+x^2-2*x+1=x^2
2*x=10
x=5
A: the length of the bamboo pole is 5 meters

Let ax ^ 2 + BX + C and - 5x ^ 2-2x be equal integers, a = how many, B = how many, C = how many

-5x²-2x
=-5x²-2x+0
So a = - 5, B = - 2, C = 0