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Nastasia [14]
3 years ago
12

What is the inverse of y=cos(x-pi/2)​?

Mathematics
1 answer:
alekssr [168]3 years ago
6 0

Answer:

f − 1 ( x ) = arccos  ( x ) +  π/ 2

Step-by-step explanation:

y=cos(x-pi/2)

For inverse, interchange the variables and solve for y

f − 1 ( x ) = arccos  ( x ) +  π/ 2

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Simplify to create an equivalent expression.<br> -r+8(-5r-2)
Fittoniya [83]

Regroup terms

8(-5r - 2) - r

Expand

-40r - 16 - r

Collect like terms

(-40r - r) -16

Simplify

<u>-41r - 16</u>

4 0
3 years ago
Calculate the final total amount of money you could put toward saving or another experience
prisoha [69]

Answer:

105.29

Step-by-step explanation:

629.75-225=40475

404.75-149.49=255.29

255.29-50=205.29

205.29-100=105.29

3 0
3 years ago
Substitute the values for a, b, and c into b2 – 4ac to determine the discriminant. Which quadratic equations will have two real
hoa [83]

Answer: 0=2x^2-7x-9\\0=4x^2-3x-1\\0=x^2-2x-8


Step-by-step explanation:

We know that the standard quadratic equation is  ax^2+bx+c=0

Let's compare all the given equation to it and , find discriminant.

1. a=2, b= -7, c=-9

b^2-4ac=(-7)^2-4(2)(-9)=49+72>0

So it has 2 real number solutions.

2. a=1, b=-4, c=4

b^2-4ac=(-4)^2-4(1)(4)=16-16=0

So it has only 1 real number solution.

3. a=4, b=-3, c=-1

b^2-4ac=(-3)^2-4(4)(-1)=9+16=25>0

So it has 2 real number solutions.

4. a=1, b=-2, c=-8

b^2-4ac=(-2)^2-4(1)(-8)=4+32=36>0

So it has 2 real number solutions.

5. a=3, b=5, c=3

b^2-4ac=(5)^2-4(3)(3)=25-36=-9

Thus it does not has real solutions.



5 0
3 years ago
Read 2 more answers
Question 11 options:
Lana71 [14]

Answer:

112

Step-by-step explanation:

The volume is 448 cm^{3}

You are asked to dilate it to a scale factor of 1/4

All you are doing is multiplying: 448/1 × 1/4

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3 years ago
Bài4 mình không biết làm mọi người help mee
aivan3 [116]
Sorry I can’t read that hand writing if I could just write it on brainly
8 0
3 years ago
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