Предмет: Математика, автор: Аноним

Найдите координаты вектора AB
→, если
A(–2;3),
B(–8;–5).

Ответы

Автор ответа: ТатМих
0
АВ=(-8-(-2);-5-(3))=(-6;--8)
Автор ответа: ТатМих
0
Чтобы найти координаты вектора AB, зная координаты его начальной точек А и конечной точки В, необходимо из координат конечной точки вычесть соответствующие координаты начальной точки.
Автор ответа: ТатМих
0
-8-(-2)=-8+2=-6 и -5-3=-8
Автор ответа: urasuper123
0
Проверено.
Интересные вопросы
Предмет: Английский язык, автор: limya
126.What ...awful weather we are having today:
A) an.
B)is.
C)are.
D) -
E)the

127.This ________ be dangerous if you don't have the right equipment.
A. should
B. can
C. are
D. is
E. went

128.Can I stay here tonight? I have _____ to go.
A. nowhere
B. somewhere
C. anywhere
D. somebody
E. nothing
129.Jim has got his camera. He _____ some photos.
A. took
B. have taken
C. are going to take
D. is go to take
E. is going to take


130..Which words are different?
A. boots, jacket, trainers, shoes
B. blouse, shirt, sweater
C. dress, shorts, T-Shirts
D. blond hair, blue eyes, long hair
E. trousers, hat, scarf

131.Choose the third form of the verb “MEET”
A. Meting
B. Meted
C. Met
D. Mited
E. Mit

132.They love ____ very much and they are going to get married.
A. others
B. themselves
C. ourselves
D. each other
E. each
133.I can`t imagine there is ... on earth who can answer that question

A. Anyone
B. Someone
C. Anything
D. Anywhere
E. Somebody

134.There isn`t ... food left but there are ... drinks.
A. Some/any
B. Any /some
C. Some/-
D. Any/-
E. _

136.I’m jogging every day_____.
A. to keep fit
B. to save money
C. to buy a new car
D. to help me with words
E. to look for a job
137.At this very moment, the International Space Station _____the Earth at a distance of 360 kilometers.
A. orbited
B. has orbited
C. will orbit
D. orbits
E. is orbiting
138.Complete the sentences with job
He is a ______. He looks after people’s teeth
A. Taxi driver
B. Pilot
C. Dentist
D. Lawyer
E. Journalist

139.Complete the sentences
My mother’s father is ________
A. Uncle
B. Cousin
C. Grandfather
D. Aunt
E. Nephew
140.It’s twenty past eight.
A. 7:40
B. 8:20
C. 8:40
D. 20:08
E. 20:20
141. It’s a quarter to ten.
A. 10:45
B. 10:15
C. 10:20
D. 10:25
E. 09:45

142.It’s quarter past 9.
A. 9:15
B. 9:30
C. 20:30
D. 6:30
E. 10:30

143. Choose the correct preposition
The clock hangs on the wall, … the table.
A. In
B. Under
C. On
D. Outside
E. Above

144.Choose the correct preposition
The ball has rolled … the bed.
A. Under
B. In
C. Above
D. At
E. –
145. Choose the correct preposition
I'll give you the money I owe you______ the end of the month.
A. At
B. In
C. On
D. From
E. into
146.Tom usually has breakfast … school.
A. On
B. In
C. At
D. Under
E. Above
F. –
147. There ____ two bathrooms in our flat
A. Are
B. Is
C. –
D. Have
E. Some

148.They didn’t make______mistakes.
A. Any
B. Some
C. –
D. A
E. no
149. When we were on holiday, we visited ______very interesting places.
A. Some
B. Any
C. No
D. A
E. Something
150.Find a noun+noun combination
Living+?
A. Room
B. Station
C. Shop
D. Park
E. Way