To add the fractions denominators have to be the same so 5*4 is 20 but u have to multiply the top too so its 8/20 8+9 is 17 so 17/20 20-17 is 3 so the third region is 3/20
M 1 = V 1 * d
m 2 = V 2 * d
Both tetrahedrons have the same density.
V = 1/3 * a²√3/4 * h
V 1 = 1/3 * 1² * √3 / 4 * √2 / √3 = √2 / 12 cm³
V 2 = 1/3 * 3²√3 /4 * √6 = 9√2 / 4 cm³
m 1 : m 2 = √2 /12 : 9√2/4
m 1 * 9√2 / 4 = m 2 * √2 / 12
m 1 = m 2 / 27
m 1 + m 2 = 100 g
m 2 / 27 + m 2 = 100 g / * 27
m 2 + 27 m 2 = 2700
28 m 2 = 2700
m 2 = 2700 : 28
m 2 = 96.42 g
Answer:
The weight of the bigger tetrahedron is 96.42 g.
Answer:
8
Step-by-step explanation:
32 + 72 = 13x
104 = 13x
x = 8
Using a geometric sequence, it is found that:
a) The explicit formula is: .
b) The value of her collection 9 years after she started tracking is of $94,557,148.
<h3>What is a geometric sequence?</h3>
A geometric sequence is a sequence in which the result of the division of consecutive terms is always the same, called common ratio q.
The nth term of a geometric sequence is given by:
In which is the first term.
Item a:
Three years ago, her collection was worth $250,000, hence the first term is .
In two years, the collection was valued at $1,102,500, hence the common ratio is:
.
Hence, the explicit formula is:
Item b:
The value of her collection 9 years after she started tracking is of $94,557,148.
More can be learned about geometric sequences at brainly.com/question/11847927