Answer:
300 square inches
Step-by-step explanation:
Given: Height of the pyramid is 9 inches and base area of the pyramid is 100 square inches
To find: volume of the pyramid
Solution:
A pyramid is a three geometrical shape that has a base and three or more triangular faces that meet at a point.
Height of the pyramid (h) = 9 inches
Base area of the pyramid (A) = 100 square inches
Volume of the pyramid =
Let b and s be the velocity of the boat and stream respectively....
3(b-s)=27
b-s=9
b=9+s we will use this in the second equation....
2(b+s)=30
b+s=15, now use b found above in this to get:
9+s+s=15
2s+9=15
2s=6
s=3, and since from earlier b-s=9, b=9+s so
b=12
So the speed of the boat is 12mph and the stream is 3 mph
Answer:
49
Step-by-step explanation:
The area of a shape is the amount of space it can occupy.Laura's design will be light enoughThe shape is given as a trapezium (see attachment).First, calculate the height (h) of the trapezium using the following Pythagoras theorem 52=h2+x2 Where: x=11−92=1 So, we have: 52=h2+x2 52=h2+1225=h2+1 Collect like terms h2=25−1 h2=24 Take square root sh=4.90The area of the shape is then calculated as follows: Area=12(11+9)×h Area=12(11+9)x4.90 Area=12×20×4.90 Area=10×4.90 Area=49
The area of the shape is 49 square inches.Hence, the shape will be light enough (because 49 is less than 80
Answer:
Mira con el gran boludin que me vengo a encontrar ahora, ya me pasaron 3 iguales a vos y a todos les rspondi y entendieron que al menos tienen que usar el 80% de su cerebro para resolver un problema que te lo resuelve un nene con sindrome de asperger en 7 segundos, así queres que te expliquemos algo nene desnutrido
Answer:
54
Step-by-step explanation:
12+(8)4-6
12+48-6
60-6
54