I’m not sure what you mean by this question but if 38 is also a degree you would:
38+29= 67
180-67= 113 x=113
Answer with Step-by-step explanation:
We are given that
A=4i-2j+4k
B=-4i+3k
Sum of unit vectors=
Sum of unit vectors=
Sum of unit vectors=
Hence, proved.
Answer:
The son is 20
The man is 60
Step-by-step explanation:
We can set up this equation with what we know. Let <em>m</em> stand for the Man's current age, and let <em>s</em> stand for his son's current age.
We know the Man's current age is three times that of his son, so this equation can be written as: <em>m = 3s</em>
Ten years ago means the man's current age <em>minus</em> 10 years. So it is <em>m-10</em>. So ten years ago he was 5 times his son's age 10 years ago, <em>5(s-10)</em>
This can be written as: <em>m-10=5(s-10)</em>
Solve with either substitution or elimination, the choice is yours, it doesn't really matter which method you use. I'll be using substitution.
<em>m-10=5(s-10)</em>
<em>3s-10= 5s-50</em>
<em>40=2s</em>
<em>20 = s</em>
The son is <em>20</em> years old.
We know the man is currently 3 times his son's age, because <em>m=3s</em>, so just solve for m since you now know the value of <em>s.</em>
<em>m=3s</em>
<em>m=3(20)</em>
<em>m=60</em>
The man is <em>60</em> years old
Answer:
1) 3² x 7³ x 5¹
2)
2 dias - 16777216 bacterias
3 dias - 6.87 × 10¹⁰ bacterias
5 dias - 1.15 × 10¹⁸ bacterias
Step-by-step explanation:
Ejercicio 1. Escribe la siguiente expresión como potencia: 3 x 3 x 7 x 7 x 7 x 5.
3 x 3 puede ser escrito como la potencia 3².
7 x 7 x 7 puede ser escrito como la potencia 7³.
5 puede ser escrito como la potencia 5¹.
Luego, 3 x 3 x 7 x 7 x 7 x 5 = 3² x 7³ x 5¹.
Ejercicio 2. Un tipo de bacteria duplica su número cada dos horas. Podemos calcular el número de bacterias (N) luego de "x horas" usando la siguiente expresión de potencias.
Donde "A" es el número inicial de bacterias.
2 dias es igual a 2 dia × 24 h/dia = 48 h. El número de bacterias luego de 2 dias será:
3 dias es igual a 3 dia × 24 h/dia = 72 h. El número de bacterias luego de 3 dias será:
5 dias es igual a 5 dia × 24 h/dia = 120 h. El número de bacterias luego de 5 dias será:
Answer:
2 x^3 + 7 x^2 + 12 x - 8
Step-by-step explanation:
To find the product you just had to simplify the expression.