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Slav-nsk [51]
3 years ago
11

Help please , I need an answer quickly if possible

Mathematics
2 answers:
Semenov [28]3 years ago
6 0

Answer:

The answer is B

RideAnS [48]3 years ago
3 0

Answer:

B.

(f-g)(x) = - 3x^2 -x - 4

Step-by-step explanation:

(f-g)(x) = - 4x^2 -6x -1 - (-x^2 -5x + 3)

(f-g)(x) = - 4x^2 -6x -1 + x^2 + 5x - 3

(f-g)(x) = - 3x^2 -x - 4

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Alan needs to manufacture a circular metal plate with a perimeter of `10pi` centimeters. If the allowed error tolerance in the p
AnnZ [28]

The ideal radius Alan must control is \frac{1}{2\pi } cm.

<h3>Define perimeter of circle.</h3>

The measurement of the circle's perimeter, also known as its circumference, is called the circle's boundary. The area of a circle determines the space it takes up. A circle's diameter is equal to the length of a straight line traced through its center. Usually, it is stated in terms of units like cm or m.

Given data -

Perimeter of circular plate = 10\pi cm

We know that perimeter of a circle is 2\pir

Therefore   10\pi = 2\pir

r = 5 cm

The given error Alan can make is +-1 cm.

Minimum radius is given by

2\pir = 10\pi - 1

r = \frac{10\pi - 1 }{2\pi }

r = 5 - \frac{1}{2\pi }

Maximum radius is given by

2\pir = 10\pi + 1

r = \frac{10\pi + 1 }{2\pi }

r = 5 + \frac{1}{2\pi }

The ideal radius Alan must control is \frac{1}{2\pi } cm.

To know more about perimeter of circle, visit:

brainly.com/question/2718232

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5 0
1 year ago
The owner of a local nightclub has recently surveyed a random sample of n = 250 customers of the club. She would now like to det
Maru [420]

Answer:

0.077994

Step-by-step explanation:

Given that the owner of a local nightclub has recently surveyed a random sample of n = 250 customers of the club.

H_0: Mean = 30\\H_a: Mean >30

(Right tailed test)

Sample size = n=250

Sample mean = 30.45

Mean difference =30.45-30=0.45\\

Sample std dev s = 5

Sample std error = \frac{5}{\sqrt{n} } =\frac{5}{\sqrt{250} } \\=0.3163

Test statistic = Mean diff/std error = =\frac{0.45}{0.3163} =1.423

Since population std deviation is not know we use t test

p value = 0.077994

4 0
3 years ago
What combination of transformations is shown below
Lunna [17]
Yes you are correct it is a transformation and then a rotation
3 0
3 years ago
Read 2 more answers
Share ur negativity…
Dima020 [189]

Answer:

I'm almost 30,000 dollars in debt

Step-by-step explanation:

It makes me cry

7 0
3 years ago
Read 2 more answers
Given f (x) = -5x + 1, find f (6)
Readme [11.4K]

Answer:

x=6(given)

-5x+1

-5*6+1

-30+1

-29

hope this answer helps u

pls mark it as brainliest

6 0
3 years ago
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