Answer:
x = 5
Step-by-step explanation:
18x-30-7x = 25
11x = 55
x = 55/11
x=5
Graph the function of (f - g)(x) and find the x-intercepts.
Answer:
Abelito had the greater average speed
Step-by-step explanation:
Given
Bobby:


Abelito


Required:
Who had a greater average speed
Average speed (S) is calculated as:

We will make use of mph (miles per hour) as the unit of speed.
For Bobby:

Convert minute to hour


For Abelito

Convert minute to hour


By comparison: 12.5mph > 8mph
Hence: Abelito had the greater average speed
Answer:
(-3;6]
Step-by-step explanation:
-9<4x+3≤27 |-3 (because we have to remove everything what's next to the x)
-9-3<4x+3-3≤27-3
-12<4x≤24 |:4
-12:4<4x:4≤24:4
-3<x≤6
x = (-3;6]

<h3><u>Given </u><u>:</u><u>-</u></h3>
- <u>We </u><u>have </u><u>given </u><u>in </u><u>the </u><u>question </u><u>that</u><u>, </u><u> </u><u>Robin </u><u>is </u><u>flying </u><u>a </u><u>kite</u><u>. </u>
- <u>She </u><u>ties </u><u>the </u><u>5</u><u>0</u><u> </u><u>foot </u><u>kite </u><u>string </u><u>to </u><u>the </u><u>ground </u><u>.</u>
- <u>The</u><u> </u><u>kite </u><u>is </u><u>flying </u><u>at </u><u>4</u><u>0</u><u> </u><u>feet </u><u>high </u>
<h3><u>To </u><u>Find </u><u>:</u><u>-</u></h3>
- <u>We </u><u>have </u><u>to </u><u>find </u><u>the </u><u>measure </u><u>of </u><u>the </u><u>angle </u><u>the </u><u>string </u><u>forms </u><u>with </u><u>the </u><u>group </u><u>that </u><u>is </u><u>angle </u><u>of </u><u>elevation</u><u>. </u>
<h3><u>Let's </u><u>Begin </u><u>:</u><u>-</u></h3>
<u>According </u><u>to </u><u>the </u><u>given</u><u> </u><u>question</u><u>, </u>
- Hypotenuse AC ( Distance of string from the ground) = 50 ft.
- Perpendicular height AB ( Distance of the kite from the ground) = 40 ft.
<h3><u>Therefore</u><u>, </u></h3>
<u>By </u><u>using </u><u>trigonometric </u><u>ratios</u><u>,</u><u> </u>
{ 

}
<u>The </u><u>Angle </u><u>of </u><u>elevation </u><u>will </u><u>be </u>
<u>[</u><u> </u><u>The </u><u>angle </u><u>that </u><u>is </u><u>formed </u><u>between </u><u>the </u><u>line </u><u>of </u><u>sight </u><u>and </u><u>base </u><u>of </u><u>the </u><u>triangle </u><u>is </u><u>called </u><u>angle </u><u>of </u><u>elevation </u><u>]</u>





Hence, The measure of the angle the string forms with the ground is 45.83° .