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lukranit [14]
3 years ago
5

ITS AN EXAM PLEASE HELP

Mathematics
1 answer:
AVprozaik [17]3 years ago
6 0

Answer:

528

Step-by-step explanation:

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Can someone assist me in this question right here?
aksik [14]

Answer:

b

Step-by-step explanation:

did it in class

6 0
3 years ago
Find the exact value of cos 157.5°.
Nonamiya [84]
Cos 157.5º=-cos (180º-157.5º)=-cos 22.5=-cos(45/2)

cos Ф/2=⁺₋√((1+cosФ)/2).

In this case 157.5º is in the second quadrant, therefore we use the following equation:
cos Ф/2=-√((1+cosФ)/2).          (we will have a negative number)

cos 157.5º=-cos (45/2)=-√((1+cos 45º)/2)
=-√((1+√2/2)/2)
=-√((2+√2)/4)
=-√(2+√2) / 2   (≈-0.92387...)

Answer: cos 157.5º= -√(2+√2) / 2

3 0
3 years ago
Read the problem and examine the diagram.
yulyashka [42]

Answer:

Option A: The answer should be 10% of 6 is the correct answer.

Step-by-step explanation:

Given that:

6 students play trumpet. As they represent 10% of the total students.

Let,

x represent the number of students in the band.

10% of x = 6

By solving this, we will get the value for number of students in the band.

As x will be our answer,

The choices B, C and D are correct in the given scenario.

However,

10% of 6 cannot be the solution to the problem.

Hence,

Option A: The answer should be 10% of 6 is the correct answer.

6 0
2 years ago
At a certain toy store, tiny stuffed
AleksAgata [21]

Answer:

130

Step-by-step explanation: add

4 0
3 years ago
I need help please and thank you
nignag [31]

Answer:

B. A square is a rectangle.

5 0
3 years ago
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