3 years ago

Guys pls help me!!!!!

Mathematics

1 answer:

miss Akunina [59]3 years ago

5 0

Answer:

1 ten and 5 ones

Step-by-step explanation:

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25 POINTS Lines a,b,c, and d are in the same plane. Line a is parallel to line c. Lines d and c are perpendicular to line d. Bas

polet [3.4K]

Assuming that the actual question reads lines b and c are perpendicular to line d

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So b is also parallel to line a

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4 years ago

There are 128 students going on a field trip. If each bus held 30 students, how many buses are needed?

madreJ [45]

The answer is 5 buses.
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3 years ago

Of five letters (A, B, C, D, and E), two letters are to be selected at random. How many possible selections are there?

taurus [48]

Answer: d. 10

Step-by-step explanation:

We know that the number of combinations of r objects selected from a group of n objects at a time is given by :-

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

Given : The total number of letters = 5

The number of letters need to select = 2

Then , the number of combinations of 2 letters selected from a group of 5 letters at a time is given by :-

$^5C_2=\dfrac{5!}{(5-2)!2!}=\dfrac{5\times4\times3!}{3!\times2}=10$

Hence, there are 10 possible selections.

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3 years ago

I need help with this math problem. Please someone help me if they can.

Veronika [31]

The answer is <span>412

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cricket20 [7]

Answer:

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Step-by-step explanation:

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