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Veronika [31]
2 years ago
7

Т.N лежи на отсечката AB, така, че AN:NB=7:4, AN=22,4dm. Дължината на отсечката AB

Mathematics
1 answer:
Lubov Fominskaja [6]2 years ago
7 0
Yes um can you translate that?
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I need the work shown not just the answers please
Yuliya22 [10]
1.) To find the surface area, we want to find the area of each side, then add them all up together:
Area of base=lwA=(5)(5)A=25 cm²
Area of triangle=1/2bhA=(1/2)(5)(12.5)A=31.25 cm²
Since the 4 triangles have the same area, we can multiply the area we found by 4 and then add the area of the square:
SA=(4)(31.25) + 25SA=125+25SA=150 cm²

2.) <span>To find the volume use the formula: 

V=(1/3)lwh
V=(1/3)(5)(5)(12.5)
V=104.167 cm^3</span>
3 0
2 years ago
There are 9 candidates total, 5 male and 4 female, who run for 4 committee positions. Suppose that each person is equally likely
gavmur [86]
Use the hypergeometric distribution.
M=number of Men=5
F=number of women=4
m=number of men elected=2
f=number ow women elected=2.

Assuming equal chance to get elected, then
P(2M,2F)=C(M,m)*C(F,f)/C(M+F,m+f)
=C(5,2)*C(4,2)/C(9,4)
=10*6/126
=10/21

Reference: Hypergeometric distribution.

6 0
3 years ago
If Josiah’s speed, in miles per minute, is constant, what is the constant of proportionality?
ollegr [7]

Answer:

Step-by-step explanation:

6 0
2 years ago
Read 2 more answers
Which fraction is less than 1 chose all of the correct answer, and explain why you chose and write it down and explain your answ
EleoNora [17]

Answer:

(3/4) and (2/3).

Step-by-step explanation:

For a fraction of the form (p / q), the number in front of the division (p) is the numerator. The number after the division (q) is the denominator.

\begin{aligned} \frac{p}{q} \quad \genfrac{}{}{0}{}{(\text{numerator})}{(\text{denominator})}\end{aligned}.

A positive fraction (p/q) (p,\, q > 0) is less than 1 as long as the numerator p is smaller than the denominator q (that is, p < q.) The reason is that as long as p,\, q > 0:

\begin{aligned} & \frac{p}{q} < 1 \\ \iff & (q)\, \left(\frac{p}{q}\right) < (q)\, (1) && (\text{given that $q > 0$}) \\ \iff & p < q\end{aligned}.

For example, in the fraction (2/3), 2 is the numerator while 3 is the denominator. Both the numerator and the denominator are positive, while the numerator 2\! is smaller than the denominator 3\!. Therefore, (2/3) would be less than 1.

6 0
1 year ago
42 cats and 14 fish what is the ratio to cats to fish
sladkih [1.3K]

Answer:

42:14

42 cats and 14 fish

8 0
2 years ago
Read 2 more answers
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