2.-Efraín tiene un terreno rectangular cuya área es de 120 m2 + 280 m como se muestra en la Figura:

120 m2 + 280 m
f
De acuerdo con estos datos ¿Cuánto mide el lado f?
a) 12 m2
+ 35
b) 15 m + 35 cm
c) 12 m + 35
d) 15 m + 35
3.- Un niño elaboró cuatro figuras de plastilina: dos prismas cuadrangulares y dos cilindros. ¿En qué figura ocupó
la mayor cantidad de plastilina? JUSTIFICA TU RESPUESTA
a)

b)

c)

e)
8

Write a corresponding real world problem to represent 2x - 125=400

The architect's side view drawing of a saltbox-style house shows a post that supports the roof ridge. the support post is 8 ft tall. the distance from the front of the house to the support post is less than the distance from the post to the back of the house. how far from the front of the house is the support post positioned?

Aspacecraft can attain a stable orbit 300 kilometers above earth if it reaches a velocity of 7.7 kilometers per second. the formula for a rocket's maximum velocity v in kilometers per second is vequalsminus0.0098tplusc ln upper r, where t is the firing time in seconds, c is the velocity of the exhaust in kilometers per second, and r is the ratio of the mass of the rocket filled with fuel to the mass of the rocket without fuel. find the velocity of a spacecraft whose booster rocket has a mass ratio of 20, an exhaust velocity of 2.1 km/s, and a firing time of 15 s. can the spacecraft achieve a stable orbit 300 km above earth?