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Yanka [14]
3 years ago
14

HELP GEOMETRY PROOFS

Mathematics
1 answer:
Reptile [31]3 years ago
6 0

Step-by-step explanation:

See the attached for the proof

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Assume that lines that appear to be tangent are tangent. O is the center of the circle. In degrees, what is the value of x?
Nastasia [14]

9514 1404 393

Answer:

  145

Step-by-step explanation:

In this geometry, the central angle (x°) and the external angle (35°) are supplementary.

  x° = 180° -35°

  x = 145

4 0
3 years ago
Find the PERCENT of Change.<br> The original cost was $50 and the new cost is $60.
Hitman42 [59]

Answer:

20% Increase

Step-by-step explanation:

[(New Value – Old Value)/Old Value] x 100 = Answer

[($60-$50)/$50]x100=20%

5 0
3 years ago
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WORTH 100 POINTS NEED DONE ASAP WRONG ANSWERS WILL BE REPORTED THANK YOUUU
zysi [14]

Answer:

3.

1.x=√(15²-12²)=√81=9

2.x=√(6²+6²)=6√2

3.c=√(√19²-√7²)=√(19-7)=√12

Step-by-step explanation:

4.h=10

a=b=x

we have

by using Pythagoras law

h²=x²+x²

100=2x²

x²=50

x=√50=5√2

both legs =5√2

7 0
3 years ago
B) Find the value of 2^-3 x 3^-2
jekas [21]

Answer:

1/72

Step-by-step explanation:

2^-3 = 1/2^3 = 1/8

3^-2 = 1/3^2 = 1/9

1/8 x 1/9 = 1/72

7 0
3 years ago
Read 2 more answers
The following set of data represents letter grades on term papers in a rhetoric class: A,A,A,B,B,B,B,C,C,C,C,C,C,C,C,C,D,D,D,F.
Viktor [21]

Answer:

c. Mode

Step-by-step explanation:

Mean is the average obtained by adding all values and then dividing by the size of the values. Here, adding A and B etc is not clear.

Median is the middle value of a set of numeric values. To find a median, values should be sort-able from smallest to the largest. If there is no unique middle value, then the average of the middle values has to be taken. Here, average of the two different grades is not clear.

Mode is the value that occurs most often. Clearly C occurs most often.

Mid-range value is the mean of the difference between largest value and the smallest value. Here, difference between A and F is not clear.

Mean,median,Mid-range are applied to numeric values where mode is also suitable for categorical values.

Therefore, the most appropriate measure of central tendency for the data described is mode

5 0
3 years ago
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