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Mice21 [21]
2 years ago
13

The face of a clock is divided into 12 equal parts. The radius of the clock face is 6 inches. Assume the hands of the clock will

form a central angle.
The face of a clock is divided into 12 equal parts.
Which statements about the clock are accurate? Check all that apply.
The central angle measure when one hand points at 2 and the other points at 4 is 60°.
The circumference of the clock is about 19 in.
With one hand at 5 and the other at 10, the minor arc formed by the hands is about 15.7 in.
The minor arc measure when one hand points at 1 and the other hand points at 9 is 150°.
The length of the minor arc between 11 and 2 is the same as the length of the minor arc between 7 and 10.
Mathematics
2 answers:
Ket [755]2 years ago
4 0

Answer:

a , c , e

Step-by-step explanation:

just took it ;)

Mars2501 [29]2 years ago
3 0

Answer: The answer to this is A,C, E! Hope this helps!

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-2021
sukhopar [10]

Answer:

I'm not too sure what you mean but since there was no image I tried to look up how to tell if angles are corresponding based on angle degree and the most I got was the angles will be equal but only if there is a transversal cur but none of the answers equal each other

Step-by-step explanation:

so what advice I can give you is corresponding angles are usually the same degree but on a different level. like on the first parallel line there is an angle and on the second (or whatever) there is another angle (on the same side of the first) -meaning they will both be on the right or the left- and yeah there you go

if you have any questions comment and I'll try my best to help

6 0
3 years ago
A scientist wants to create 120 ml of a solution that is 30% acidic. To create this solution, she has access to a 20% solution a
mafiozo [28]

Answer:

She should add 72 ml of the 20%-acidic solution and 48 ml of the 45%-acidic solution.

Step-by-step explanation:

Hi there!

The volume of the final solution will be the sum of the volume of each solution:

let x be the volume of the solution that is 20% acidic and y the volume of the solution that is 45% acidic. Then:

x + y = 120 ml

The amount of acid (let´s call it acidity units) of the total solution will be the sum of the amount of acid of each solution. If the final solution has 30 acidity units in 100 ml, then in 120 ml there will be (120 ml · 30 acidity units / 100 ml) 36 acidity units (concentration times volume over 100). Then the sum of the acidity units can be expressed as follows:

20/100 x + 45/100 y = 36

0.2x + 0.45y = 36

Then, we have a system of equations that we can solve because there are two equations and two unknowns:

x + y = 120 ml

0.2x + 0.45 y = 36

The solution of the system will be the pair (x,y) that satisfies both equations.

Let´s take the first equation and solve it for y:

x + y = 120 ml

subtract x to both sides of the equation

y = 120 - x

Now replace y in the second equation:

0.2x + 0.45 y = 36

0.2x + 0.45(120 - x) = 36

Apply distributive property

0.2x + 54 - 0.45x = 36

subtract 54 to both sides of the equation

-0.25x = 36 - 54

-0.25x = -18

divide both sides of the equation by -0.25

x = -18/-0.25

x = 72

Now, let´s calculate y:

y = 120 - x

y = 120 - 72

y = 48

She should add 72 ml of the 20%-acidic solution and 48 ml of the 45%-acidic solution.

7 0
3 years ago
What is the length of segment AB? A coordinate plane is shown. Point A is located at 6, 2, and point B is located at 0, 10. The
UkoKoshka [18]
The answer is 8 units
6 0
3 years ago
Read 2 more answers
Please help if you can
Vinvika [58]

The scale is 5/4

Because:

Let's take

20/16 = 5/4

20/16 = 5/4

15/12 = 5/4

4 0
3 years ago
Read 2 more answers
HELP ASAP Which expression is equivalent to 1/8x−1/2?
Sever21 [200]

The 3rd option is correct

8 0
2 years ago
Read 2 more answers
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