Prueba Objetiva de Matemáticas. Mayo 2021.
Quiz
•
Mathematics
•
7th Grade
•
Hard
josé aragón
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10 questions
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1.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Para multiplicar dos o más potencias de igual base, se deja la misma base y se restan los exponentes.
Verdadero
Falso
2.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Para dividir potencias de igual base, se deja la misma base y se restan los exponentes.
Verdadero
Falso
3.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
Efectúa la siguiente operación: (-78x²y4) (-9x²x4)
y selecciona la respuesta correcta:
-702 x4 y16
702 x4 y8
-720 x4 y8
720 x4 y16
4.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
3x²y4
El coeficiente del monomio anterior es:
2
3
4
Ninguno de los anteriores
5.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Resuelve: (3x²y) (7xy)
21x³y
21xy²
21x³y²
21xy
6.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Resuelve: (21x²y) ÷ (3xy)
7
7x
7xy
7x²y
7.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Calcula el valor numérico de las siguiente expresión algebraica para el valor que se indica.
3x + 5, cuando x toma el valor de 10.
18
15
30
35
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