0 және не знаю как гOTBET:
the afternoon, learn work
in lunchtime, I eat pizza and drink juice
in night, I watch TV or play mobile games
in weekend, I go to picnicin
Write the correct preposition, then complete the
sentences for you.
Write the correct preposition, then complete the
sentences for you.
Write the correct preposition, then complete the
sentences for you.
OTBET:
the afternoon, learn work
in lunchtime, I eat pizza and drink juice
in night, I watch TV or play mobile games
in weekend, I go to picnicin
OTBET:
the afternoon, learn work
in lunchtime, I eat pizza and drink juice
in night, I watch TV or play mobile games
in weekend, I go to picnicin
OTBET:
the afternoon, learn work
in lunchtime, I eat pizza and drink juice
in night, I watch TV or play mobile games
in weekend, I go to picnicin
OTBET:
the afternoon, learn work
in lunchtime, I eat pizza and drink juice
in night, I watch TV or play mobile games
in weekend, I go to picnicin
OTBET:
the afternoon, learn work
in lunchtime, I eat pizza and drink juice
in night, I watch TV or play mobile games
in weekend, I go to picnicin
OTBET:
the afternoon, learn work
in lunchtime, I eat pizza and drink juice
in night, I watch TV or play mobile games
in weekend, I go to picnicin
OTBET:
the afternoon, learn work
in lunchtime, I eat pizza and drink juice
in night, I watch TV or play mobile games
in weekend, I go to picnicin
OTBET:
the afternoon, learn work
in lunchtime, I eat pizza and drink juice
in night, I watch TV or play mobile games
in weekend, I go to picnicin
OTBET:
the afternoon, learn work
in lunchtime, I eat pizza and drink juice
in night, I watch TV or play mobile games
in weekend, I go to picnicin
OTBET:
the afternoon, learn work
in lunchtime, I eat pizza and drink juice
in night, I watch TV or play mobile games
in weekend, I go to picnicin
OTBET:
the afternoon, learn work
in lunchtime, I eat pizza and drink juice
in night, I watch TV or play mobile games
in weekend, I go to picnicin
Write the correct preposition, then complete the
sentences for you.
Write the correct preposition, then complete the
sentences for you.
Write the correct preposition, then complete the
sentences for you.
Write the correct preposition, then complete the
sentences for you.
Айару казак тілі ден 7ші тапсымадан 1 жұмбақты 2ші жұмбақты айтшы казак тілі ден 7ші тапсымадан 1 жұмбақты 2ші жұмбақты айтшы казак тілі ден 7ші тапсымадан 1 жұмбақты 2ші жұмбақты айтшы апай Саламатсызба апай Саламатсызба апай Саламатсызба апай Саламатсызба апай
первая сторона a= 5см
вторая сторона b= 10см
периметр P= 30 см
Объяснение:
площадь прямоугольника:
S=ab
если одну( меньшую) сторону примем за x, то другая сторона будет (х+5), следовательно:
x×(x+5)=150 (перемножаем почленно)
x²+5x=150 ( переносим 150 в левую часть уравнения)
x²+5x-150=0 (решаем уравнение через дискриминант или теорему Виета)
D=b²-4ac=25-4×1×(-150)=25+600=625 (625>0, значит уравнение имеет два действительных корня)
x1,2=(-b±√625)/2a
x1=(-5+25)/2×1
x1=20÷2
x1=10
x2=(-5-25)/2
х2=-15 ( не удовлетворяет условиям задачи, так как длина стороны не может быть отрицательной)
следовательно x=10
значит меньшая сторона прямоугольника равна 5см, а большая сторона Равна 5+5=10см.
таким образом периметр прямоугольника ( сумма всех сторон) равен 2×(10+5)= 10+10+5+5=30см
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