The missing coefficient of n in n + 8 is 9 after adding like terms which is 2n and 7n.
<h3>What is an expression?</h3>
It is defined as the combination of constants and variables with mathematical operators.
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We have an expression:
= 2n + (7n + 8)
After adding like terms:
9n + 8
The coefficient of n in n + 8 is 9
Thus, the coefficient of n in n + 8 is 9 after adding like terms which is 2n and 7n.
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Answer:
5 (probably not right i havent done this type of math in a long time)
Step-by-step explanation:
Answer:
Area of wall = 360 ft²
Step-by-step explanation:
Given:
One part of wall (Rectangle) = 16ft x 18ft
Another part of wall (Triangle) = 8ft x 18ft
Find:
Area of wall
Computation:
Area of wall = Area of rectangle + Area of triangle
Area of wall = (l x b) + (1/2)(b)(h)
Area of wall = (16 x 18) + (1/2)(8)(18)
Area of wall = 288 ft² + 72 ft²
Area of wall = 360 ft²
Answer:
El ángulo formado entre las dos direcciones es aproximadamente 115º.
Step-by-step explanation:
Las direcciones dadas en el enunciado significan lo siguiente:
S32ºE - <em>32º al este del sur.</em>
E57ºN - <em>57º al norte del este.</em>
Vectorialmente hablando, cada dirección es la siguiente:
S32ºE
E57ºN
El ángulo formado entre los dos vectores unitarios (
), medido en grado sexagesimales, puede determinarse mediante la siguiente ecuación vectorial:
Donde:
- Norma de 
.
- Norma de 
.
Si sabemos que , , 
y 
, entonces el ángulo formado entre los dos vectores es:
El ángulo formado entre las dos direcciones es aproximadamente 115º.
