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kenny6666 [7]
3 years ago
10

Help please need by tomorrow

Mathematics
1 answer:
kirza4 [7]3 years ago
3 0
Well number one is an acute angle number two is obtuse and number three is obtuse
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Suppose that S is the set of successful students in a classroom, and that F stands for the set of freshmen students in that clas
lora16 [44]

Answer:

b) 24

Step-by-step explanation:

We solve building the Venn's diagram of these sets.

We have that n(S) is the number of succesful students in a classroom.

n(F) is the number of freshmen student in that classroom.

We have that:

n(S) = n(s) + n(S \cap F)

In which n(s) are those who are succeful but not freshmen and n(S \cap F) are those who are succesful and freshmen.

By the same logic, we also have that:

n(F) = n(f) + n(S \cap F)

The union is:

n(S \cup F) = n(s) + n(f) + n(S \cap F)

In which

n(S \cup F) = 58

n(s) = n(S) - n(S \cap F) = 54 - n(S \cap F)

n(f) = n(F) - n(S \cap F) = 28 - n(S \cap F)

So

n(S \cup F) = n(s) + n(f) + n(S \cap F)

58 = 54 - n(S \cap F) + 28 - n(S \cap F) + n(S \cap F)

n(S \cap F) = 24

So the correct answer is:

b) 24

3 0
3 years ago
Which graph represents the function y = cos(4x)?<br><br> Answer is graph B
VARVARA [1.3K]

Answer:

Step-by-step explanation:

Let the equation of the cosine function is,

y = Acos(Bx)

From the graph attached,

A = Amplitude = \frac{1-(-1)}{2}

   = 1

B = \frac{2\pi}{\text{Period}}

B = \frac{2\pi}{\frac{\pi}{2}-0}

B = \frac{4\pi}{\pi}

B = 4

Therefore, equation of the cosine wave given in the graph will be,

y = 1.Cos(4x)

y = Cos(4x)

7 0
3 years ago
Read 2 more answers
13. Find the arc length with the given information . centralangle = pi/4, radius = 6
zimovet [89]

Answer:

it is 4th one for 14 it is 2nd one

Step-by-step explanation:

7 0
3 years ago
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The cat has gone 7/16 of the way across the yard. How much farther does it have to go to reach the gate?
snow_tiger [21]
9/16 ways to go...unless the gate is closer you didn't really say where the gate is
7 0
3 years ago
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I WILL AWARD BRAINLIEST TO WHO GETS IT CORRECT A pedestrian is walking at a speed of 3km/h. find the distance the pedestrian wal
ludmilkaskok [199]

Answer:

3km

Step-by-step explanation:

If they are walking 3km for every hour that they walk, then in 1 hour they will walk 3km.

5 0
3 years ago
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