In the equation x2 + Y2 + DX + ey + F = 0, if D2 = E2 > 4f, then () A. The circle is tangent to the two coordinate axes B. the circle intersects the two coordinate axes C. the circle is away from the two coordinate axes D. the distance from the center of the circle to the two coordinate axes is equal

In the equation x2 + Y2 + DX + ey + F = 0, if D2 = E2 > 4f, then () A. The circle is tangent to the two coordinate axes B. the circle intersects the two coordinate axes C. the circle is away from the two coordinate axes D. the distance from the center of the circle to the two coordinate axes is equal

In the equation x2 + Y2 + DX + ey + F = 0 of a circle, if D2 = E2 > 4f, the abscissa and ordinate of the center of the circle are equal, and the distance from the center of the circle to the two coordinate axes is equal, so choose: D,

20 exercises of solving equations (with answers)
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Question supplement: Supplement 1. The application of the equation and the calculation of the equation are not reminded
Ha - best answer of intern level 1 7 χ - 2 × 9 = 80 6x - 4x = 20.2 (χ + 12) △ 4 = 4.5
6x－0.4×6 = 9.6 118－2×( 4.1 + X ) = 55 4x ＋80 = 160
9.6÷X = 0.8 4.8－X = 3×( X ＋ 6 ) 4.3X－1.5 + 3.2X = 4.5
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More questions about solving equation exercises
Equation exercises grade 5
There are 6 other answers
A workshop can produce 120 class a parts, or 100 class B parts, or 200 class C parts every day. Three, two, and one of class A, B, and C parts can be made into a set. Now it is required to produce the most complete sets of products within 30 days. How many days should class A, B, and C parts be produced?
Respondent: Miss - probation Level 2 2009-7-27 22:09
In order to beautify the campus, the fifth and sixth grade students carry out tree planting activities. It is planned that the sixth grade students plant 75 more trees than the fifth grade students, which is 1.5 times of the fifth grade students. How many trees do the fifth and sixth grade students plant?
2. Liangliang, Qiangqiang, Mingming, there are game cards 96. It is known that Liangliang's cards are twice as many as Mingming's, and Qiangqiang's cards are three times as many as Mingming's. how many cards do they each have?
1. If x trees are planted in the fifth grade, then 1.5x trees are planted in the sixth grade
1.5X-X=75
0.5X=75
X=150
1.5X=1.5*150=225
A: there are 150 and 225 trees planted by fifth and sixth graders respectively
2 clear cards: 96 / (1 + 2 + 3) = 16
Strong card: 16 * 3 = 48
Bright cards: 16 * 2 = 32
Responder: the family of Diandian Banban - probation period grade 2 22:52, July 27, 2009
3X+5X=48 14X-8X=12 6*5+2X=44
20X-50=50 28+6X=88 32-22X=10
24-3X=3 10X*（5+1）=60 99X=100-X
X+3=18 X-6=12 56-2X=20
4y+2=6 x+32=76 3x+6=18
16+8x=40 2x-8=8 4x-3*9=29
8x-3x=105 x-6*5=42 x+5=7
2x+3=10 12x-9x=9 6x+18=48
56x-50x=30 5x=15 78-5x=28
32y-29=3 5x+5=15 89x-9=80
100-20x=20 55x-25x=60 76y-75=1
23y-23=23 4x-20=0 80y+20=100
53x-90=16 2x+9x=11 12y-12=24
80+5x=100 7x-8=6 65x+35=100
19y+y=40 25-5x=15 79y+y=80
42x+28x=140 3x-1=8 90y-90=90
80y-90=70 78y+2y=160 88-x=80
9-4x=1 20x=40 65y-30=100
51y-y=100 85y+1=-86 45x-50=40
Responder: wutouren43 - doorman II 2009-7-29 21:18
A workshop can produce 120 class a parts, or 100 class B parts, or 200 class C parts every day. Three, two, and one of class A, B, and C parts can be made into a set. Now it is required to produce the most complete sets of products within 30 days. How many days should class A, B, and C parts be produced?
Interviewer: Miss Assistant II 2009-7-27 22:09
In order to beautify the campus, the fifth and sixth grade students carry out tree planting activities. It is planned that the sixth grade students plant 75 more trees than the fifth grade students, which is 1.5 times of the fifth grade students. How many trees do the fifth and sixth grade students plant?
2. Liangliang, Qiangqiang, Mingming, there are game cards 96. It is known that Liangliang's cards are twice as many as Mingming's, and Qiangqiang's cards are three times as many as Mingming's. how many cards do they each have?
1. If x trees are planted in the fifth grade, then 1.5x trees are planted in the sixth grade
1.5X-X=75
0.5X=75
X=150
1.5X=1.5*150=225
A: there are 150 and 225 trees planted by fifth and sixth graders respectively
Mathematics midterm paper a of the first semester of grade 6
Class name score
1、 Fill in the blanks (22 points)
1.40 kg = t / h = () min
2.100 is 75, 25 tons is 13
The reciprocal of 3.9 is (); the reciprocal of () is
4. One kilogram of soybean can extract 528 kilogram of oil, one kilogram of soybean can extract () kilogram of oil, and one kilogram of oil needs () kilogram of soybean
5.3.5 = = () 6 = = (): () minimalist ratio
6. Number a is number B. the ratio of number B to the total number of a and B is (). The difference between the two numbers is equal to that of number B
7. Fill in ">" in 0“