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azamat
4 years ago
9

Which biconditional is NOT a good definition ?

Mathematics
1 answer:
alexgriva [62]4 years ago
6 0

Answer:

d

Step-by-step explanation:

An angle is straight if and only if its measure is 180

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Help please I’m almost done
netineya [11]

Answer:

33 and -39

Step-by-step explanation:

Angle on a straight line = 180

|5x + 15| = 180 and |5x + 15| = -180

5x + 15 = 180

Subtract 15 from both sides;

5x = 165

Divide both sides by 5;

x = 33

5x + 15 = -180

Subtract 15 from both sides;

5x = -195

Divide both sides by 5;

x = -39

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3 years ago
A kite descends to the ground from a height of 32 feet. Use an integer to describe the descent.
nydimaria [60]
32-x=0; with x equaling the amount descended or -32.
8 0
3 years ago
What does standard deviation mean?
Sveta_85 [38]
Standard deviation is: It is a measure of how spread out numbers are. It is the square root of the Variance, and the Variance is the average of the squared differences from the Mean.

For example: To find the standard deviation, you have to add up all the numbers in the data set, then divide by how many numbers there are, and that will get you your answer.

Example,  Say your data set is: 9, 2, 5, 4, 12, 7, 8, 11, 9, 3, 7, 4, 12, 5, 4, 10, 9, 6, 9, 4.

The Mean is: 9 + 2 + 5 + 4 + 12 + 7 + 8 + 11 + 9 + 3 + 7 + 4 + 12 + 5 + 4 + 10+ 9 + 6 + 9 + 4. Over 20. That equals: 104 over 20 = 7.

So, the Standard Variance and  Mean is: 7 for this problem.

Hope I helped!

- Debbie
4 0
3 years ago
A construction crew is lengthening a road. The crew is adding 6 miles to the road each week. The road originally measured 52 mil
PSYCHO15rus [73]

6x + 52 > 130

Subtract 52 from both sides:

6x > 78

Divide both sides by 6:

X > 78/6

X > 13

7 0
3 years ago
Correct answer gets brainliest
Tju [1.3M]

Answer: It should be C) Vertical angles are congruent.

5 0
3 years ago
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