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gregori [183]
3 years ago
11

Which function is equivalent to y= -cot(x)?

Mathematics
2 answers:
erastova [34]3 years ago
7 0
We know that
tan (A+B)=sin (A+B)/cos (A+B)
sin (A+B)=sin A*cos B+sin B*cos A
cos (A+B)=cos A*cos B-sin A*sin B
so
for (x+pi/2)
A=x
B=pi/2
sin A=sin x
sin B=1
cos A=cos x
cos B=0
sin (A+B)=sin x*0+1*cos x------> cos x
cos (A+B)=cos x*0-sin x*1------> -sin x
tan (x+pi/2)=cos x/(-sin x)------> -cot x

the answer is the option
D. y= tan (x+pi/2)
vitfil [10]3 years ago
7 0

Answer:

D. y = tan(x + pi/2)

Step-by-step explanation:

this is the correct answer on ed-genuity, hope this helps! :)

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Suppose both factors in a multiplication problem are multiples of 10. Why might the number of zeroes in the product be different
Lelu [443]

Answer:

Multiplying factors whose products are multiples of 10 add to the number of zeros when factors are multiplied as multiples of 10s.

Step-by-step explanation:

Let the first five multiples of ten be

10*1= 10

10*2= 20

10*3=30

10*4=40

10*5= 50

Suppose we chose 20 and 50.

Now multiplying 20 with 50 we get

20*50= 1000

IF we count the total number of zeros in the factors ( 20 and 50) they are 2.

But the number of zeros in the product (1000) are 3.

This is because when we multiply 2 with 5 we get 10 which adds to the existing number of zeros ( i.e 2) and we get a total of 3 zeros.

And multiplying 10 with 50 we get

10*50= 500

IF we count the total number of zeros in the factors ( 10 and 50) they are 2.

But the number of zeros in the product (500) are also 2.

This is because when we multiply 1 with 5 we get 5 which does not add to the existing number of zeros ( i.e 2) and the total number of zeros remain the same.

Similarly multiplying 20 with 30 we get

20*30= 600

IF we count the total number of zeros in the factors ( 20 and 30) they are 2.

But the number of zeros in the product (600) are also 2.

This is because when we multiply 2 with 3 we get 6 which does not have a zero and the total  number of zeros remain the same as in the factors.

So we see that multiplying factors whose products are multiples of 10 add to the number of zeros when factors are multiplied as multiples of 10s.

5 0
2 years ago
HELPPP PLS SHOW WORK
expeople1 [14]

Answer:

61

Step-by-step explanation:

1. let the unknown be x

2. using theorem of Pythagoras that states the hypotenuse will be equal to the sum of the other two sides we can determine that 75=14+X

3. this implies that X=75-14

4. therefore X= 61

7 0
2 years ago
Is 2/3 equivalent to 1/3 if it isn't then which is bigger plz help and will give a thanks
lina2011 [118]
Compare the enumerators because they have the same denominator. 2 is large than 1 so 2/3 is larger than 1/3

Hope this helps!
7 0
3 years ago
Read 2 more answers
Find the surface area of a cylinder with a diameter of 4 cm, and a height of
4vir4ik [10]

Answer:

125.66

Step-by-step explanation:

3 0
3 years ago
If a lobster molts 20 times in 5 years, then how many times will a lobster molt in 12 years?
statuscvo [17]

its simple really the lobster will molt 4 times every year so take 12 times 4 to get 48. to get how many times a lobster molts in one year divide 20 by 5 to get 4

hope this helps :)

4 0
3 years ago
Read 2 more answers
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