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sukhopar [10]
3 years ago
5

(JUSTIFY)The diameter of a wheel is 15 inches. How far would your hand move in one full turn of the wheel if you do not let go o

f the wheel? Round the answer to the nearest inch. (Use 3.14 for pi) Describe how to tell weather your answer is reasonable.
Mathematics
1 answer:
Elanso [62]3 years ago
4 0
So,

The circumference of a circle is 2 \pi r, or \  \pi d, where \ d \ is \ the \ diameter.

Substitute 15 for d
15(3.14)

47.1
47

Your hand would move 47 inches.
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Write the expression<br> Divide y by 9 then subtract z from the result
aev [14]

Answer:

Bruh its not that hard, but ill answer it. answer is below

Step-by-step explanation:

Divide y by 9 then subtract z from the result

We know that y divided by 9 is y/9

and the you subtract z from it: y/9-z

but i think that since it says "subtract z <em><u>FROM THE RESULT</u></em>"

I think it is

(y/9)-z

3 0
3 years ago
Select the correct answer. What is the range of the function f(x) = -4\x+ 11 - 5? A. (-4,-5) B. [-5,-) OC. (-4,-) OD. (-2,-4] Re
Y_Kistochka [10]

We are given the following function:

f(x)=-4\lvert x+1\rvert-5

This function is equivalent to the function:

g(x)=-4\lvert x+1\rvert

Together with a translation 5 units in the negative direction of the "x" axis. Since the range of g(x) is all the values of "y" that are smaller or equal to zero, if we translate 5 units in the negative direction of the y-axis the range is:

R(f(x))=\mleft\lbrace y\parallel y\mright?\le5\rbrace

or in interval notation:

R(f(x))=(-\infty,-5\rbrack

3 0
1 year ago
I want the answer only, Due now.
klio [65]

Answer:

Write the equation then try the equation with the numbers from choice A then go down. do all of them. which ever ends up equal is the right answer.

Step-by-step explanation:

I will do the math but you try it first, then ill do the math step by step in the comments, but only if you try it first. im trusting you to try.

5 0
3 years ago
Put the following numbers in order from smallest to largest, with the smallest value at the top of the list.
Kobotan [32]

Answer:

The right order is:

  1. <u>0.085</u>
  2. <u>1/3</u>
  3. <u>2/5</u>
  4. <u>60%</u>
  5. <u>3/4</u>
  6. <u>78%</u>
  7. <u>1.05</u>

Step-by-step explanation:

To identify the right order of the numbers given in order from the smallest to largest, you first must convert all the numbers to the same mode (fractions, decimals or percentages), in this case, I will transform all the numbers to decimals, for this you must divide the fractions or operate the percentages, and you will obtain:

  • 0.085 = 0.085
  • 1/3 = 0.33333333333
  • 60% = 0.6
  • 2/5 = 0.4
  • 3/4 = 0.75
  • 1.05 = 1.05
  • 78% = 0.78

How you can see, <em>in this form is easier than the original form, now you can identify that 2/5 (0.4) is smaller than 60% (0.6) and 1.05 is bigger than 78% (0.78)</em>.

4 0
3 years ago
Cos x cos (-x) -sin x sin (-x) = 1. Verify the Identity. Please Show All Steps.
umka21 [38]

Answer:

cos x cos (-x) -sin x sin (-x) = 1 ⇒ proved down

Step-by-step explanation:

* Lets revise the angles in the four quadrants

- If angle x is in the first quadrant, then the equivalent angles to it are

# 180 - x ⇒ second quadrant (sin (180 - x) = sin x , cos (180 - x) = -cos x

  tan (180 - x) = -tan x)

# 180 + x ⇒ third quadrant (sin (180 - x) = -sin x , cos (180 - x) = -cos x

  tan (180 - x) = tan x)

# 360 - x ⇒ fourth quadrant (sin (180 - x) = -sin x , cos (180 - x) = cos x

  tan (180 - x) = -tan x)

# -x ⇒fourth quadrant (sin (- x) = -sin x , cos (- x) = cos x

  tan (- x) = -tan x)

* Lets solve the problem

∵ L. H .S is ⇒ cos x cos (-x) - sin (x) sin (-x)

- From the rules above cos x = cos(-x)

∴ cos x cos (-x) = cos x cos x

∴ cos x cos (-x) = cos² x

- From the rule above sin (-x) = - sin x

∴ sin x sin (-x) = sin x [- sin x]

∴ sin x sin (-x) = - sin² x

∴ cos x cos (-x) - sin (x) sin (-x) = cos² x - (- sin² x)

∴ cos x cos (-x) - sin (x) sin (-x) = cos² x + sin² x

∵ cos² x + sin² x = 1

∴ R.H.S = 1

∴ L.H.S = R.H.S

∴ cos x cos (-x) -sin x sin (-x) = 1

8 0
3 years ago
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