PARCIAL1 PM2 B
Authored by Magdalena Lopez
Mathematics
9th Grade
Used 13+ times
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10 questions
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1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
La expresión algebraica que representa la semisuma de dos números es
a+b/2
a+b
a-b
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
La expresión algebraica que representa el producto de dos números cualesquiera es:
xy
x+2
(2)(7)
x-y
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
La expresión matemática que expresa el área de la siguiente figura es:
x+x+1
(x+1)x
2x+2x+1
(2x+2)+(2x+1)
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
La expresión matemática que expresa el perímetro del siguiente triángulo es:
A=a+b+c
A=b∙c
A=a∙b
A=a∙b2
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
En un triángulo isósceles cada uno de los lados iguales mide 5 cm más que el tercer lado. Si el ∆ tiene 70 cm de perímetro, ¿cuánto mide cada lado?
70 cm
30 cm
12.5 cm
20 cm
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
El resultado de la siguiente operación 6m3+8m3+5m3+2n3 es:
21m9
11m3
19m3+2n3
9m27+2n3
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
El resultado de reducir la expresión x3+7x2-2x3+5x2 es:
5x2
x3+8x2
-x3+12x2
x3+8x2
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