Предмет: Алгебра, автор: ЛизДжастис

Найти больший корень уравнения 4x^2+5x+1=0

Ответы

Автор ответа: Тойтоша
0
a=4, b=5, c=1<br />D=25-4*4*1=25-16=9<br />x1=-5+3/8=-2/8=-1/4=0,25 x2=-5-3/8=8/8=1 Ответ: 1
Автор ответа: Тойтоша
0
сделай лучшим)
Автор ответа: selmash21
0
д=25-4×1×4=9
х1=(-5-3)/2×4=-1
х2=(-5+3)/2×4=-1/4
ответ: -1/4
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Это текст к 3 заданию↑
1 задание
1) tsunami
a) when the ground shakes
b) a flash of light in the sky
c) water that covers an area
d) a very large wave

2) earthquake
a) when the ground shakes
b) a flash of light in the sky
c) water that covers an area
d) a very large wave

3) lightning
a) when the ground shakes
b) a flash of light in the sky
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задание2
*Choose the correct phrases to complete the dialogue.*

A: Hi Mary! How was your weekend? B: It was good. 1) ………..
A What on earth happened?
B I can imagine!
C However, you'll never guess what happened!
D Oh my goodness!
E Where were you at the time?

A: I don't know! 2) ……….. B: I got caught in a terrible lightning storm!
A What on earth happened?
B I can imagine!
C However, you'll never guess what happened!
D Oh my goodness!
E Where were you at the time?

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A What on earth happened?
B I can imagine!
C However, you'll never guess what happened!
D Oh my goodness!
E Where were you at the time?

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A What on earth happened?
B I can imagine!
C However, you'll never guess what happened!
D Oh my goodness!
E Where were you at the time?

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B I can imagine!
C However, you'll never guess what happened!
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Read the text and make the task
3 задание
Прочитайте диалог

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The Hawaiian Islands ...
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Alan thinks the rivers of lava ...
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were watching, weren't sleeping

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was cooking, wasn't laying
wasn't cooking, was laying
was cooking, was laying
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Wasn't it snowing, was it raining
Was it snowing, was it raining
Were it snowing, was it raining
Was it snowing, were it raining

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were having, weren’t playing
weren't having, weren’t playing
was having, weren’t playing
were having, wasn't playing
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