Find the area of a regular pentagon with an apothem of 2.75 cm and a side length of 4 cm. (round to the nearest whole number)
1 answer:
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Answer:
Answers are below.
Step-by-step explanation:
Problem 2:
Area = approx. 11.3 (rounded to nearest tenth)
A = 1 / 4b 1/4 x 4 x
11.31371
11.31371 rounded to the nearest tenth is 11.3
Problem 3: i'm not too sure sorry :(
Answer:
Constant of variation is 24.
Step-by-step explanation:
Inverse variation states that a relationship between two variables in which the product is remain constant.
If one variable increases then, the other one decreases in proportion so that the product is unchanged,
if y is inversely proportional to x i.e or
;where k is the constant of variation.
It is given that 3 identical water pumps takes 8 hours to fill a pool,
since, it will take less time with more pumps, so it is an inverse variation.
By definition of inverse variation;
Substitute the values to solve for k;
Multiply by 3 to both sides we get;
Simplify:
k = 24
Therefore, the constant of variation is, 24