Lateral area: AL = 4 * s * h
624 = 4 * s * 13
624 = 52 s
s = 624 : 52
s = 12 cm
The surface area of the prism:
A = 2 ·12² + 624
A = 2 · 144 + 624 = 288 + 624 =912 cm²
The volume:
V = a² · h = 12² · 13 = 144 · 13 = 1,872 cm³
Answer:
1. The surface area is equal to 912 cm².
2. The volume is equal to 1,872 cm³.
Answer:
-5k-10
Step-by-step explanation:
D will be The Diameter goes straight across the circle, through the center. The Circumference is the distance once around the circle.
A. f(t)=9000-1000t; Since 9000 is the number we start on, that is written as the constant. And since the value decreases by $1000 each year, we can put the $9000 it costs currently and will decrease by $1000 per year (t), this can be written as the function f(t)=9000-1000t
B. $6000; Just plug 3 into the equation to find the answer.
f(t)=9000-1000(3)
f(t)=9000-3000
f(t)= 6000
It costs $6000 after three years
C. $3500; To solve this just subtract 500 from 9000 to get 8500, and plug this in as the constant in our function.
f(t)=8500-1000(5)
f(t)=8500-5000
f(t)=3500
The answer is $3500
Answer:
Your travel time will be 32.71 secs.
Step-by-step explanation:
Let the total distance be x feet.
Speed while walking = 
feet per second
Speed on the sidewalk = 
feet per second
Therefore, total speed while walking on moving sidewalk =
= 
= 
= 
Hence, your travel time will be 32.71 secs.
