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8090 [49]
3 years ago
5

Determine which justification best fits step 3 for the following proof

Mathematics
2 answers:
devlian [24]3 years ago
7 0

Answer: it's actually angle addition postulate

explanation: angle addition postulate is the one that allows you to say that the individual parts of a bigger angle can add up to equal that bigger angle

fgiga [73]3 years ago
6 0

Answer:

D

Step-by-step explanation:

Since ABC is collinear and angle 3 is a right angle, adding 1&2 together should equal 3, which comes out to being equal to line ABC

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Given the diagram below what is tan 60?
Contact [7]

Answer:

A) √3

Step-by-step explanation:

The tangent of an angle can be found by dividing the leg opposite the angle over the leg adjacent to it.

So, we have to find them.

The 30-60-90 rule says that in a right triangle with the angles 30°, 60° and 90°, the sides opposite those angles will have the ratio of 1:√3:2.

That means the side adjacent to 60° is 2 units long and the one opposite is 2√3 units long.

Dividing those two gives us (2√3)/2, which can be simplified to √3.

3 0
3 years ago
Read 2 more answers
the cost of a phone call lasting 3 minutes 30 seconds was 52.5 cents . at this rate what was the cost of a call lasting 5 minute
Effectus [21]

Answer:

80 cents

Step-by-step explanation:

The easiest place to start for this is to calculate how much it costs per minute of call time. To do this, if we know that it costs 52.5 cents to call for 3.5 minutes, we can divide those two numbers to get how much it costs per minute.

52.5/3.5 = 15

If it costs 15 cents per minute, and we want to know how much it would cost to call for 5.33 (5 and 1/3 of a minute), then we multiply our 15 cents a minute by the number of minutes to get the final cost.

15 x 5.33 = 79.99

Because we can't have 99/100 cents, rounding up to 80 is important to get a proper answer.

6 0
3 years ago
The following list has a mean of 24 what would be the new mean if 17 was added to the list?
Anastaziya [24]

Answer:

23

Step-by-step explanation:

6 0
3 years ago
What is the slope of a line that passes through the points (-2, 3) and (4, -12)?<br> Please hurry
IgorC [24]
6/-15 simplified is 2\-5 explanation: you subtract 4-(-2) which is 6 then -12-3 which is -15. Then I simplified to 2/-5 (sorry if I am wrong)
7 0
3 years ago
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Write an equation to solve for x 3x + 21 6x-60 will mark brainiest ​
Maru [420]

Answer:

<h2>3x + 21 = 6x - 60</h2><h2 />

Step-by-step explanation:

parallel angles are equal:

so the equation is to equates each side

3x + 21 = 6x - 60

8 0
3 years ago
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