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sergejj [24]
3 years ago
10

It’s due today so I’d like some help please

Mathematics
2 answers:
insens350 [35]3 years ago
8 0

Answer:

E. 7.688 × 10^8

s2008m [1.1K]3 years ago
3 0

Answer:

The answer is E since you'll be adding 3.844 to each other and the terms as well. But the answer is E again

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We have a box with eight green marbles, five red marbles, and seven blue marbles. We choose three marbles from the box at random
Salsk061 [2.6K]

Answer: 0.089

Step-by-step explanation:

Number of combinations of n things taking r at a time :-

^nC_r=\dfrac{n!}{r!(n-r)!}

Given : A box has eight green marbles, five red marbles, and seven blue marbles.

Total marbles = 5+8+7=20

We choose three marbles from the box at random without looking.

Number of ways to choose 3 marbles with same color :-

^8C_3+\ ^5C_3+ ^7C_3\\\\=\dfrac{8!}{3!(8-3)!}+\dfrac{5!}{3!(5-3)!}+\dfrac{7!}{3!(7-3)!}\\\\=56+10+35=101   (1)

Total ways to select 3 marbles from 20 marbles :-

\dfrac{20!}{3!(20-3)!}=1140     (2)

Now, the required probability (divide (1) by (2)):-

\dfrac{101}{1140}=0.0885964912281\approx0.089

Hence, the required probability : 0.089

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3 years ago
The institute of certified business consultants ICBC offers a certification for
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Step-by-step explanation:

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3 years ago
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Use a calculator. Add then do the exponent.
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During the afternoon, and 18 foot tall tree casts a shadow 25 feet long. What is the approximate andle of elevation from the end
Karo-lina-s [1.5K]

a tree casts a 25-foot shadow on sunny day. If the angle of elevation from the tip of the shadow to the top of the tree is 32 degree, what is the height of the tree to the nearest tenth of a foot?

 

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0.624869=H/25

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WILL MARK BRAINLIEST PLEASE HELP
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