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r-ruslan [8.4K]
3 years ago
7

Show that

alt="\sqrt{20} =2\sqrt{5}" align="absmiddle" class="latex-formula">

Mathematics
1 answer:
Jobisdone [24]3 years ago
7 0
Sqrt(20) = sqrt( 4*5) = 2 root(5)


Mark brainliest please


Hope this helps you
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EXPERTS/ACE/GENIUSES/TRUSTED HELPERS HELPP ME
PilotLPTM [1.2K]

17.76(5) = 88.15 + 27.52 = 115.67


 Answer is A

8 0
3 years ago
2. In Australia, there are approximately 100 species of venomous snakes, but only about 12 have a deadly
Savatey [412]

Answer:

The required probability is 0.3717.

Step-by-step explanation:

Consider the provided information.

There are approximately 100 species of venomous snakes, but only about 12 have a deadly  bite.

zoo randomly selects one snake from each of five different species to show visitors.

The total number of ways to select 5 different species out of 100 are:

^{100}C_5=\frac{100!}{5!95!}=75287520

We need to find the probability that exactly one of the five snakes shown is deadly.

That means out of 12 deadly bite we need to select only 1.

Thus, the number of ways are:

^{12}C_1\times ^{88}C_4=\frac{12!}{11!}\cdot\frac{88!}{4!84!}=27982680

Hence, the required probability is:

\frac{27982680}{75287520}\approx0.3717

The required probability is 0.3717.

4 0
3 years ago
1 3/4 = divided by 4
VARVARA [1.3K]

Answer:

7/16

Step-by-step explanation:

1 3/4 = 7/4

(7/4) / 4 = 7/4 * 1/4

7/16

5 0
3 years ago
Read 2 more answers
Antoinette's favorite meat sauce uses 3 3/4 lbs of meat in each serving. If the meat only comes in packages of 12 1/8 lbs of mea
olga2289 [7]
The answer is 3 full servings. 
4 0
3 years ago
Roberto left his parent's house at 11 A.M. traveling at an average rate of 30 mph. His parents left their house at 12 P.M. trave
dlinn [17]
As the movement, it is not accelerated then 

Xr = 30 T
Xp = 45(t-1)

they both will meet when x is the same, so

30T = 45T - 45
T = 3 
they both will meet 3 hours after Roberto leaves, at 2 pm
3 0
3 years ago
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