Task 1. The area of ​​the envelope of a regular four-sided prism is M = 120cm2 and the length of its height is H = 5cm. Calculate:
a) the length of the base edge a,
b) the surface of the prism,
c) the volume of the prism.

Task 2. In a square pool measuring 20m, 15m and 2m, there is water up to - height (depth).
How many waters are there in that pool, and how many liters?

Task 3. Calculate the area of ​​a regular hexagonal prism if the length of the diagonal of the base
d = 12 cm, and the length of the diagonal of the prism is 15 cm.​

answer: the answer is 30 miles per hour.

ft/s -> mphmph = ft/s 1.466667mph = 44 divided by 1.466667mph = 30.00000

- r3ktforgood ☕

, and

for

step-by-step explanation:

we can analyze the pattern at which the terms increase. let us denote , , , so that we can call

note the following:

the pattern: to get the next term value, we just add the next term number (e.g. 1st, 2nd, to the previous term value (term values are the given numbers in the question, 1, 3, 6, 10, 15,

from , to get to , we add

from , to get to , we add

etc.

we need to form a recursive formula, a formula that has the next term as a function of the previous term. so a possible recursive formula can be

, and for

step-by-step explanation:

f(gx)=f(1/x+2)

=(1/x+2)+2

=(1+2x)/2+2

=(1+2x+4)/2

= (2x+5)/2