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fenix001 [56]
3 years ago
15

Prompt:

Mathematics
2 answers:
Roman55 [17]3 years ago
8 0

Answer:

I got this answer from the answer above but put it into my own words...

Sasha is incorrect. She concluded that the object hit the ground at -1.71 seconds, when that is impossible because there is no way an object can hit the ground in negative seconds. What she could have done was used the quadratic formula because it works for every problem, but it does take more time than any other problem.

Vadim26 [7]3 years ago
4 0

Answer:

Her answer is wrong because she the object cannot hit the ground at negative seconds. She could’ve have used other methods because she used the quadratic formula. The advantages is that it works for every situation. The disadvantages is that it takes longer. She should’ve used a different method.

Step-by-step explanation:

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Find the value of x​
soldier1979 [14.2K]

Answer:

x = -14

Step-by-step explanation:

Look at the image attatched. I have labeled the angles for better explanation.

We know that angle 1 is 54 degrees as is rests on a straight line with its adjacent angle at 126 degrees. This means that angle 1 would be 180 - 126 degrees, or 54 degrees. We also know that angle 1 and 3 must be congruent as the sides of the triangle opposite those angles are congruent as well. This means that both those angles are 54 degrees. Since the sum of all angles in a triangle must equal 180 degrees, we can get that angle 4 is 180 - (2*54) degrees, or 72. Since angle two and angle 4 both lie on a straight line, they must add up to 180 degrees. This means that the value of angle 2 would be 180 - 72, or 108 degrees. Since angle 2 is also equal to x+122, we get the equation:

108 = x + 122.

We then solve this by getting:

x = 108 - 122

which gives us the answer of

x = -14

3 0
3 years ago
Read 2 more answers
12/19 - 1/2<br> 5/7 + 3/8<br><br> Solve these two I will mark you brainliesat
olga_2 [115]

Answer:

  • 5/38

  • 61/58

Step-by-step explanation:

Answer in the attachment

5 0
2 years ago
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Help me find m PLEASE THANK YOUUUU
julia-pushkina [17]

Answer:

the m angle ABC is 19x+12

3 0
2 years ago
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If a = -3, find the value of<br> a) 2a<br> b) a^2<br> c) 3a^2
White raven [17]

Answer:

a) -6

b) 9

c) 27

Step-by-step explanation:

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8 0
1 year ago
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How many gallons of a 70​% antifreeze solution must be mixed with 60 gallons of 20​% antifreeze to get a mixture that is 60​% ​a
Flura [38]

We have 60 gallons of 20% antifreeze.

How much 70% antifreeze do we add to get 60% antifreeze?

We'll make "x" the gallons of 70% we must add.

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x = 240 gallons of 70% antifreeze.

Source

1728.com/mixture.htm (see example B)


4 0
3 years ago
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