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neonofarm [45]
2 years ago
11

X(x+4)=x^+4x

Mathematics
1 answer:
koban [17]2 years ago
5 0
1(1+4)=1^(4*1)
5=1 No

2(2+4)=2^(4*2)
12=256 No

3(3+4)=3^(4*3)
21=531441 No

None
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Resuma o tema operações com números positivos e negativos POR FAVOR RESPONDA CERTO E RÁPIDO É URGENTE!
wlad13 [49]

Adição (+)

Positivo + Positivo = Positivo

Negativo + Negativo = Negativo

Positivo + Negativo ou Negativo + Positivo

• use o maior número e seu sinal, subtraia

Subtração (-)

Negativo - Positivo = Negativo

Positivo - Negativo = Positivo

Negativo - Negativo = Negativo + Positivo

• use o maior número e seu sinal, subtraia

Multiplicação (x)

Positivo x Positivo = Positivo

Negativo x Negativo = Positivo

Negativo x Positivo = Negativo

Positivo x Negativo = Negativo

• alterar os negativos duplos para um positivo

Divisão (÷)

Positivo ÷ Positivo = Positivo

Negativo ÷ Negativo = Positivo

Negativo ÷ Positivo = Negativo

Positivo ÷ Negativo = Negativo

• alterar os negativos duplos para um positivo

3 0
3 years ago
A car completes a journey at an average speed of 40km/h.At what speed must it travel on the return journey if the average speed
nalin [4]
The distance, s = 40t₁ where t₁ is the time to complete the outward journey.
The same distance = vt₂ where t₂ is the time to complete the return journey at speed v.
For the whole journey, 2s=60(t₁+t₂). Therefore s=30(t₁+t₂)=40t₁=vt₂.
30t₁+30t₂=40t₁, 10t₁=30t₂, t₁=3t₂, so s=120t₂=vt₂ and v=120kph.
5 0
3 years ago
What is 2(7-x)=6(1+2x)
Blababa [14]
14-2x=6+12x
14=6+10x
8=10x
0.8=x
5 0
3 years ago
Read 2 more answers
Please help me with my homework :)
Kisachek [45]
Scale factor is 1.5x
x is 10
y is 42
z is 36
i think angle is 150° i don’t know about this last one though
7 0
3 years ago
What is the equation of a line that passes through the point (6, 1) and is perpendicular to the line whose equation is y=−2x−6y=
Mandarinka [93]
Lets get the negative reciprocal of the slope so we get
m  =  \frac{1}{2}
Now the equation that is perpendicular is
y =  \frac{1}{2} x + b
Lets solve for b by plugging in the point (x,y)=(6,1)
1 =  \frac{1}{2} (6) + b \\ 1 = 3 + b \\ 1 - 3 = b \\ b =  - 2
Now plug that into the equation. So the equation of the line that is perpendicular and
passes through the point (6, 1) is
y =  \frac{1}{2} x  - 2
6 0
3 years ago
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