Answer:
393.75
Step-by-step explanation:
to find the volume of a rectangular prism, multiply all values by each other.
Perimeter of rectangles: 2(L+w)=2(3m+4m)=14m=14*100=1400cm
spider can walk 19cm each second.it can walk perimeter of room in 1400/19=73.6 seconds
Answer: 15
Step-by-step explanation:
For this question you have to use pythagoras' theorem.
Pythagoras' theorem is c²=a²+b²
So c is the hypotenuse and the hypotenuse is always opposite the right angle.
So the equation would be c²=9²+12²
Then 9²=81 and 12²=144
So the equation would then be c²=81+144
So c²=225
Then you just want to find c on it's own so you have to square root it which is 15.
14^3 , as when you divide powers, you simply minus them from each other