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olga2289 [7]
4 years ago
7

An item is regularly priced at

Mathematics
1 answer:
Goshia [24]4 years ago
5 0
18 dollars. div ide 90 by 80 to get 72. and subtract 90 from 72
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The spokes of a bicycle wheel form 10 congruent central angles. The diameter of the circle formed by the outer edge of the wheel
Yuki888 [10]

Answer:

5.6 inches.

Step-by-step explanation:

The length of the outer edge of the wheel between two consecutive spokes is given by;

l=d\sin(\frac{\theta}{2} )

where d=18 inches.

and

\theta=\frac{360\degree}{10}=36\degree is the central angle.

We substitute the values to obtain;

l=18\sin(\frac{36\degree}{2})

l=18\sin(18\degree)

l=5.562305899

l=5.6 inches to the nearest tenth.

8 0
4 years ago
A yoyo rotates 12 tomes every 3 seconds what is the yoyos unit rate for rotations per second
horsena [70]

Answer:

4

Step-by-step explanation:

3 0
3 years ago
Read 2 more answers
four times the sum of some number plus 1 is equal 12 times the difference of the number and 3. Find the number
aleksklad [387]
<h3><u>The value of x is equal to 2.</u></h3>

4(x + 1) = 12(3 - x)

<em><u>Distributive property on both sides.</u></em>

4x + 4 = 36 - 12x

<em><u>Add 12x to both sides.</u></em>

16x + 4 = 36

<em><u>Subtract both sides by 4.</u></em>

16x = 32

<em><u>Divide both sides by 16.</u></em>

x = 2

5 0
4 years ago
Which of the following reveals the minimum value for the equation 3x2 + 18x + 15 = 0?
11111nata11111 [884]

Answer:

Step-by-step explanation:

I have no idea

7 0
3 years ago
Carrie gets 5 points for each answer and has already earned 10 points of extra credit she needs at least 77 to pass
Nookie1986 [14]
Answers have to be more than or equal to 14
7 0
4 years ago
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