4 years ago

• The value of the expression is

Mathematics

2 answers:

dusya [7]4 years ago

8 0

Answer:
27

Explanation:
(a+b)^3
= (2+1)^3
= 3^3
= 27

I hope this helped! Please comment if you have any questions :)

iren2701 [21]4 years ago

4 0

Answer:

Step-by-step explanation:

$(a+b)^{3}-12$

= $(2+1)^{3}-12$

= $(3)^{3}-12$

=(27)-12

=15

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Find the equation of a line that passes through the points (1,-3) and (3,-4).

sergeinik [125]

The answer is:

y= -0.5x -2.5

you can also write it as:

y = -0.5x + (-2.5)

m = -0.5

b or "c" = -2.5

I hope this was helpful :)

4 0

3 years ago

Read 2 more answers

(UPE) Terremotos são eventos naturais que não têm relação com eventos climáticos extremos, mas podem ter consequências ambientai

Alex

Answer:

E= $10^{18}$ Joules

Step-by-step explanation:

1) Olá! Adicionando dados faltantes ao enunciado, como a fórmula dada: $M=\frac{2}{3}log(\frac{E}{E_{0}})\\$ e corrigindo a quantidade de Energia inicial: $10^{4,5}$ Vamos seguir aplicando a fórmula, lembrando das propriedades de logaritmo.

$M=\frac{2}{3}log(\frac{E}{E_{0}})\\9=\frac{2}{3}log(\frac{E}{10^{4,5}})*3\\27=2log(\frac{E}{10^{4.5}})\\log(\frac{E}{10^{4.5}})^{2}=27\\(\frac{E^{2}}{10^{9}})=10^{27}\\E^{2}=10^{27}*10^{9}\Rightarrow E=\sqrt{10^{36}}\rightarrow E=10^{18} Joules$