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Taya2010 [7]
3 years ago
13

What part of the circumference is an arc whose measure is 30°? 1/12 1/10 1/8 1/6

Mathematics
1 answer:
GrogVix [38]3 years ago
5 0

Answer:

1/12

Step-by-step explanation:

The whole circumference (i.e complete circle) is an arc which measures 360°

in our case, it is given that our arc measures only 30°

the fraction of our arc of 30° to the complete circle of 360° is

30/360

= 3/36

= 1/12

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Isreal has 575779 ducks and tyier has 585869698 ducks how many ducks do they have in all
sergejj [24]
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575779+585869698=586445477 
4 0
3 years ago
ladder is 8 ft long . The ladder needs to reach to a window that is 6 ft above the ground . How far away from the house should t
stiks02 [169]

Answer:

5.3 or 28

Step-by-step explanation:

6^{2}+b^{2}=8^{2}

36+b^{2}=64

64-36=28

\sqrt{28\\}

=5.29 or 5.3

5 0
2 years ago
Select all of the following that are quadratic equations. 7x2 + 14x = 0 x3 - 3x2 + 1 = 0 5x - 7 = 0 x2 + 3x -5 = 0 x - 5 = 9x +
Tpy6a [65]

Answer:

7x2 + 14x = 0

x2 + 3x -5 = 0

x2 - x = 3x + 7  

Step-by-step explanation:

A quadratic equation has the highest power of x to the second power.  It must have x to the second power

7x2 + 14x = 0  quadratic

x3 - 3x2 + 1 = 0   not quadratic  but cubic

5x - 7 = 0  not quadratic  but linear

x2 + 3x -5 = 0   quadratic

x - 5 = 9x + 7  not quadratic but linear

x2 - x = 3x + 7  quadratic

4 0
2 years ago
Ripley told his mom that multiplying whole numbers by multiples of 10 was easy because you just count zeros in the factors and p
zhuklara [117]

Answer:

She is right, it won´t always work.

Step-by-step explanation:

Hi, in the examples this tactic works because the first numbers, when multiplied, don´t equal 10 (7x6=42 and 8x7=56). If you multiply both numbers and give you 10, you will have to add another zero to the final number and the trick would crash.

Example:

    200    x       500      =    100,000

(2 Zeros)      (2 zeros)        (5 zeros)

Best of luck.

5 0
3 years ago
Area of trapezoids <br>find the area​
Zinaida [17]

Answer:

Area of the trapezoid = 6cm^2

Step-by-step explanation:

Area of a trapezoid:

(1/2)*Sum of parallel opposite sides +Distance between the parallel sides

Parallel sides are: 2 cm  and 4 cm

Distance between the parallel sides is 2 cm

Area of the trapezoid:

                            =\frac{1}{2}*(2+4)*2\\\\=\frac{1}{2}* 6*2\\\\=\frac{12}{2}\\\\ =6cm^2

Area of the trapezoid is 6cm^2

7 0
3 years ago
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