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Anonymous users2024-02-08This topic is not difficult, you can set 2 a=3 b=5 c=m, at this time, a=2 m, b=3 m, c=5 m, substitute these into 2a+b-c=4, that is, 4 m+3 m-5 m=4, calculate m=, a=4, b=6, c=10, a -3bc-1 2c=16-3*6*10-5=-169, your last formula is a little unclear, and then calculate it yourself.
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Anonymous users2024-02-07Solution: Let 2 a=3 b=5 c=t, so a=2 t, b=3 t, c=5 t; Substituting a, b, and c into 2a+b-c=4 respectively gives 4 t+3 t-5 t=4, so t=1 2;So a=4, b=6, c=10; Then substitute a, b, and c respectively.
A -3bc-1 2c yields 4 -3*6*10-1 2*10=16-180-5=-169
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Anonymous users2024-02-06Because 2 a = 3 b = 5 c
So a=2c5, b=3c5
So 2a+b-c=2*2c 5+3c 5-c=2 5*c=4c=4 (2 5)=10
So a=2*10 5=4
b=3*10/5=6
Therefore. a²-3bc-1/2c
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Anonymous users2024-02-05Let 2 a=3 b=5 c=1 t, then a=2t, b=3t, c=5t substitute a=2t, b=3t, c=5t into 2a+b-c=2*2t+3t-5t=2t=4, and the solution is t=2
a=2t=2*2=4
b=3t=3*2=6
c=5t=5*2=10
Substitute a=4, b=6, c=10 into a-3bc-1 2c=16-180-5=-169
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Anonymous users2024-02-04Stroke order of kicking words: vertical, horizontal, horizontal, vertical, horizontal, vertical, mention, vertical, horizontal, horizontal, horizontal, vertical
Sentence about kicking a ball:
1. When playing the ball, I ignored the person who was most likely to shoot, and instead went to prevent the person with the ball who was guarded in the distance, and the person with the ball passed to the companion closest to the goal with a big foot, and the ball went in. Collapse.
2. It doesn't matter to me whether or not Qiao Shirt Zheng can become Bailey or a greater person, Min Song. The important thing is that I play, train and not give up a second.
3. Do other things with your family, such as singing Christmas carols, baking cookies, and watching TV. Life is good, and it's good to play football.
4. On the playground, some students are playing football, some are running, some are in the long jump, and some are in the tug-of-war, what a lively scene.
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Anonymous users2024-02-03Regular script: <>
The seal is equipped with chaos: it is destroyed and hidden.
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Anonymous users2024-02-02The base height of the parallelogram is the length of the sides of the square.
32 4 8 (cm).
The parallelogram area is equal to.
8 8 64 (square centimeters).
Shadow Faces Noisy Mind Product = Parallelogram Face Ho Kai Product - Face Zen Touching Calling Product.
49 (square centimeters).
The slalom kick is called a backspin kick in the taekwondo movement, and it is a type of taekwondo stunt leg technique. >>>More
It's very simple, don't use the instep to pump when you kick, use the outer instep or the inner instep to rub the ball, then the ball will spin in the air, and the rotation will cause the density difference between the air on both sides of the football, and the ball will shift to the side with less density, forming an arc, commonly known as a banana ball. >>>More
Of course, you have to work hard, but here are some suggestions. >>>More
Solution: Suppose you answered x questions correctly.
3x+(30-x)=78 >>>More
Full-back, it's not difficult to occasionally pass the next person, it's not difficult to connect the midfielder and the striker Dan is not the front waist, it is to participate in the steal of the midfield, that is, the thing of the ten thousand essential oil line, that is, the occasional pass but can be a short pass at any time, the speed is not good, help others slow down the speed to do what to block, participate in the siege, strengthen the physical strength, increase some foot strength, occasionally you also have to participate in the shooting, especially the long shot, your main responsibility area is probably the side of the large scenic area to the midfield, you must often participate in the siege, It is impossible for others to often pass two or three people in the cow, in fact, it is ten thousand essential oils **need**blocking** can help Pay attention to the speed of return defense and the speed and passing when passing.