Answer:
i. 1.63 s
ii. The negative time cannot be used in this context
Step-by-step explanation:
i. Since h = −640t² and the rocket descends 1,690 m, h = -1,690 m (since there is a drop in height).
So, h = -640t²
t² = h/-640
t = √(- h/640)
Substituting h into the equation, we have
t = √(- h/640)
t = √[-(-1,690)/640]
t = √2.640625
t = 1.625
t ≈ 1.63 s
ii. So, the negative time cannot be used in this context because, the height drop is negative.
The measure of angles are 69 degree and 111 degree
<em><u>Solution:</u></em>
Given is linear pair angles
The measure of angles are: (6x - 9) degrees and (9x - 6) degrees
A linear pair of angles is formed when two lines intersect.
The measure of a straight angle is 180 degrees, so a linear pair of angles must add up to 180 degrees.
Therefore,
<em><u>Thus the measure of angles are:</u></em>
Thus measure of angles are 69 degree and 111 degree
<em>x = 4</em>
- <em>Step-by-step explanation:</em>
<em>Hi there ! </em>
<em>use </em><em><u>Thales theorem</u></em>
<em>x/(x + 8) = 4/12</em>
<em>12x = 4x + 32</em>
<em>12x - 4x = 32</em>
<em>8x = 32</em>
<em>x = 32 : 4</em>
<em>x = 4</em>
<em />
<em>4/(8 + 4) = 4/12</em>
<em>4/12 = 4/12 (true)</em>
<em />
<em>Good luck !</em>
Answer: y= 2x +7
Step-by-step explanation:
Answer:
106 I think or the question is incomplete
