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Ksivusya [100]
3 years ago
10

A student is given a reading list of nine books from which he must select three for an outside reading requirement. In how many

ways can he make his selections?
Mathematics
1 answer:
Aleksandr-060686 [28]3 years ago
4 0
Basically you have to multiply 9x8 for the numerator, and the denominator is 3x2 so as you know 9x8 is 72 divide that by 3x2 is 6 and you get 72/6=12
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Do you distibute the -2 through first or the exponent?
frozen [14]
The exponent is always first PENDAS
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3 years ago
Two birds sit at the top of two different trees. The distance between the first bird and a birdwatcher on the ground is 32 feet.
mestny [16]

Answer:

x = 45.3°

Step-by-step explanation:

The distant between the first bird and the bird watcher is opposite to the reference angle, x° = 32 ft

The hypotenuse is the distance between the second bird and the bird watcher = 45 ft.

Therefore,

sin(x) = \frac{opp}{hyp} = \frac{32}{45}

sin(x) = \frac{32}{45} =  0.7111

x = sin^{-1}(0.7111)

x = 45.3

6 0
3 years ago
How high is the ramp?
Vinil7 [7]

Answer:

a

Step-by-step explanation:

it's a right triangle so we can use the pythagorean theorem to find h

pythagorean theorem: a^2+b^2=c^2

h^2+19^2=21^2

h^2+361=441

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6 0
3 years ago
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Can someone please help me please
lesantik [10]

Answer: Which question do you need



Step-by-step explanation:


8 0
3 years ago
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Open the parallel lines translation application. The right set of parallel lines is a translation right 10 units of the left set
Luden [163]

When a translation is included on the axes for any shape or line, lines that are otherwise identical cannot be compared to one another. in the same manner as the lines that I drew in parallel. These two lines do not compete with one another in any way. This is further explained below.

<h3>What is translation?</h3>

Generally, Changing words from one language to another is just one of the processes of translation. In other words, translation facilitates communication between different cultural groups. You may get a firsthand look at cultural phenomena that, seen through the perspective of your own culture, would seem alien and distant.

In conclusion, Lines that are otherwise similar to one another are unable to be compared to one another when an additional translation is put on the axes for any form or line. in exactly the same way as the lines that I drew parallel to one another. These two different lines are in no way intended to compete with one another.

Read more about translation

brainly.com/question/12463306

#SPJ1

5 0
2 years ago
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