First what is 4*5 then 4*7 then 4*8
Responder:
2³
5⁴
10³
a^6
Explicação passo a passo:
Quando um certo valor é multiplicado repetidamente,
Por exemplo,
a * a * a * a = a⁴ (a multiplicado 4 vezes)
Por isso,
2 x 2 x 2 = 2³
5 x 5 x 5 x 5 = 5⁴
10 x 10 x 10 = 10³
a x a x a x a x a x a = a^6
Answer:
3.
Step-by-step explanation:
3(n + 4) = 21
3n + 12 = 21
3n = 21 - 12 = 9
n = 3.
Answer:
28.26
Step-by-step explanation:
Area of a circle = pi (radius)^2 so...
A=3.14(9) = 28.26, which is your first choice
for the system of equations
the three matrices needed to use Cramer's Rule are:
.
To use Cramer's Rule we have to calculate the three determinants listed below of the matrices listed below.
.
The value of the determinants are shown below.

The value of y is
.