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djyliett [7]
3 years ago
10

Geometry Question! Please help me with this! Worth 20 points! WILL GIVE BRAINIEST

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

Answer:

30°

Step-by-step explanation:

to find the arc, multiply the inscribed angle (w) by 2

15° × 2 = 30°

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The base of the triangle decreases by 30% and the height increases by 20%.
sergeinik [125]

Answer:

Area decreases by 16%

Step-by-step explanation:

Use formula for the area of the triangle

A=\dfrac{1}{2}\cdot \text{Base}\cdot \text{Height}

<u>Initial triangle:</u>

The base is 18 cm

The height is 5 cm

The area is

A_{initial}=\dfrac{1}{2}\cdot 18\cdot 5=45\ cm^2

<u>New triangle:</u>

The base is (1-0.3)\cdot 18=0.7\cdot 18=12.6\ cm

The height is (1+0.2)\cdot 5=1.2\cdot 5=6\ cm

The area is

A_{new}=\dfrac{1}{2}\cdot 12.6\cdot 6=37.8\ cm^2

Area decreases by

100\%-\dfrac{37.8}{45}\cdot 100\%=100\%-84\%=16\%

5 0
3 years ago
the measurement of one angle of a right angle is 42 degrees what is the measurement of the third angle
kogti [31]
The angles of a triangle all add up to 180°. In fact, it can be generalized that the sum of the interior angles of an n-sided polygon is equal to 180°(n–2). 

A right triangle must have a right angle, which is equal to 90°. If the other angle is 42°, that means that we can find the third angle by subtracting 90° + 42° from 180°.

x = 180° – (90° + 42°) = 48°
8 0
3 years ago
How many 1/4 ft cubed make up the volume of this prism ?​
DIA [1.3K]

Answer:

Each cube with side lengths of 1/4 has a volume of (1/4)3 which means each cube's volume is 0.015625 cubic units. To find how many cubes are needed to fill the prism, divide 3 cubic units by 0.015625 cubic units. Your answer will be 192 cubes.

Step-by-step explanation:

6 0
3 years ago
I am M I am a number between 17 and 25 I am a multiple of 36 is not a factor of mine what am I
Leni [432]

Answer:

wat

Step-by-step explanation:

8 0
3 years ago
A bee beats its wings 250 times each second. What is the average time for a single beat of a bee's wing?
Marat540 [252]
I'm not sure, but the average time can be 1/250 seconds.
8 0
3 years ago
Read 2 more answers
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