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sergeinik [125]
2 years ago
12

Find (f^-1)(a). F(x)=cosx- sin x + pi/2 a=pi/2, 0

Mathematics
1 answer:
Novosadov [1.4K]2 years ago
7 0

Answer:

pi/4

Step-by-step explanation:

my answer is in the image above

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Equation with a slope of -2 and point of (4,7)
s344n2d4d5 [400]

Answer:

y=-2x+15

Step-by-step explanation:

So first we can write it in point slope form.

That is y-y1=m(x-x1)

y1 is the y coordinate

m is the lope

x1 is the x coordinate

This means that the equation is:

y-7=-2(x-4)

We can then convert it to slope intercept form which is

y=mx+b

so

y-7=-2x+8

y=-2x+15

3 0
3 years ago
Read 2 more answers
Isabel is running for president of the chess club, and she received 33 votes. There are 60 members in the club. What percentage
iVinArrow [24]

Answer:

55%

Step-by-step explanation:

(Received number of votes/Total number of votes)100%

=(33/60)100%

=(11/20)100%

=(0.55)100%

=55%

Therefore, 55% of the club members voted for Isabel.


4 0
3 years ago
Kelsey had $65 to spend on books. Each book cost $5.50, and there was a $7.50 fee for shipping. She let b equal the number of bo
GuDViN [60]

Answer:

Let the number of books she can purchase = b

The cost of each book is $5.5 with an extra shipping of $7.5

So, the total cost of the books she can purchase = 5.5b+7.5

Since, she had $65 to spend on the books.

The required inequality is 5.5b+7.5\leq 65.

So, according to the inequality above, we get,

The correct options are,

B. The inequality symbol is incorrect because she can spend up to and including $65.

C. The expression  5.5b+7.5 is correct because $5.50 per book is  5.5b and that is added to the shipping fee of $7.50 to determine the total purchase price.

5 0
3 years ago
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Helen got a $7 reduction in the price of pair of jeans that are normally $32. What is the aproximate percent decrease In The pri
hjlf
$ 7 dollar reduction....that means new price is (32 - 7) = 25

percent decrease = (original number - new number) / original number..* 100
                                (32 - 25) / 25....* 100
                                 7/25 * 100
                                 0.28 * 100
                                 28% decrease <==
6 0
3 years ago
Ann went to the store. She bought a book for $4.00, pencils for $2.00, and a notebook for $3.00. What is her change if she paid
agasfer [191]

Answer:

$11 is her change

Step-by-step explanation:

This is a simple adding and subtracing problem.

What we first do is add up 4+2+3=9 then we subtract 9 from 20 which gives us $11

We can check our answer by add up 11 + 9 to see if it equals to 20

8 0
3 years ago
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