можно до завтра ответы??? пожалуйста. Created by Bro2202. algebra-ru

1.-4.86 / (-1.2) =4.05Ответ: 4,052.a) x¹⁴б) x¹²в) x²¹г) 16x⁸y⁴3.y=-5x+3Прямая.Точки для построения:x=0 y=3x=1 y= -2a) y=-2 x=1б) (0.6; 0)4.6x+15-4x+32=8x+202x+47=8x+202x-8x=20-47-6x=-27x=4.5Ответ: 4,55.4a²-20a+25-4a²+16a=-4a+25-4*2.5+25=-10+25= 15Ответ: 15.6.х (м) - на одно платьеу (м) - на один сарафан{x+3y=9{3x+5y=19x=9-3y3(9-3y)+5y=1927-9y+5y=19-4y=19-27-4y= -8y=2x=9-3*2=3Ответ: 3 м - на одно платье; 2м - на один сарафан.7.У куба 12 ребер.4 кубиков с двумя окр. гранями * 12 ребер = 48 кубиковОтвет: 48. Реклама Реклама Новые вопросы в Алгебра срочно пожалуйста!!! пожалуйста помогите решить Упростите выражения ( 1) (a®)? :a® : аз; 3) 640 : (62)11 : (64)2; пожалуйста срочно!!!вычислите (112:28-36-24):(-1.7)= 4.27 помогите плизПостройте график и найдите промежутки знакопостоянства функции y=f(x) упростите выражение (n-⁴/2m-⁴)‐⁴×7n⁵mСРОЧНО ПОМОГИТЕ 2х=-5 скажи срочно пожалуйста Решите ответ есть нужно решение дам 20 баллов 5º.25-7 125.5сппситее срочно сор Помогите пожалуйста!! 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можно до завтра ответы??? пожалуйста...

Bro2202 @Bro2202

September 2021 1 17 Report

можно до завтра ответы??? пожалуйста

Answers & Comments

m11m

Verified answer

1.
-4.86 / (-1.2) =4.05
Ответ: 4,05

2.
a) x¹⁴
б) x¹²
в) x²¹
г) 16x⁸y⁴

3.
y=-5x+3
Прямая.
Точки для построения:
x=0 y=3
x=1 y= -2

a) y=-2 x=1
б) (0.6; 0)

4.
6x+15-4x+32=8x+20
2x+47=8x+20
2x-8x=20-47
-6x=-27
x=4.5
Ответ: 4,5

5.
4a²-20a+25-4a²+16a=-4a+25
-4*2.5+25=-10+25= 15
Ответ: 15.

6.
х (м) - на одно платье
у (м) - на один сарафан

{x+3y=9
{3x+5y=19

x=9-3y
3(9-3y)+5y=19
27-9y+5y=19
-4y=19-27
-4y= -8
y=2

x=9-3*2=3

Ответ: 3 м - на одно платье; 2м - на один сарафан.

7.
У куба 12 ребер.
4 кубиков с двумя окр. гранями * 12 ребер = 48 кубиков
Ответ: 48.