Answer:
<u>part</u><u> </u><u>1</u><u>:</u>
see in the picture, E is the centre of the kite
1) AC = 2.EC = 40
2) CD = sqrt( ED² + EC² ) = sqrt(21² + 20²) = 29
3) ABE = 90⁰ - 51⁰ = 39⁰
4) BCE = BAE = 51⁰
<u>p</u><u>a</u><u>r</u><u>t</u><u> </u><u>2</u><u>:</u>
we have:
3x + 7 = (3x - 1 + 8x)/ 2
<=> 3x + 7 = 5.5x - 0.5
<=> 2.5x = 7.5
<=> x = 3
5) with x = 3 => UV = 3.3 - 1 = 9 - 1 = 8
6) XY = 3.3 + 7 = 9 + 7 = 16
7) TW = 8.3 = 24
<u>9</u><u>)</u><u> </u><u>t</u><u>h</u><u>e</u><u> </u><u>w</u><u>i</u><u>d</u><u>t</u><u>h</u><u> </u><u>o</u><u>f</u><u> </u><u>t</u><u>h</u><u>e</u><u> </u><u>b</u><u>a</u><u>s</u><u>e</u> is x (x > 0)
we have:
28.5 = (x + 25)/2
<=> x + 25 = 57
<=> x = 32
Try graphing y=x^3. It crosses the x-axis at (0,0), and this point represents the one and only real root.
Every form of a cubic function has a graph that crosses the x-axis in 1 or 3 places.
Thus, the correct answers to this particular problem are B and C.
Additionally, certain cubic function forms have graphs that cross the x-axis in one unique place, but which touch (but do not cross) the x-axis. Here you have one unique real root plus one repeated (duplicated) real root, for a total of 3 roots.
Using these facts, decide which of the four given answers are correct.
Answer:
20 + 0.05m
Step-by-step explanation:
The phone company charges a standard fee as well as a fee for every minute of long distance.
When no minutes are used, the cost is $20. This means that the standard fee is $20.
For 10 minutes, the cost is $20.50. The standard fee is $20. This means that for ten minutes, $0.50 is charged. For one minute, the charge is $0.05,
$20.50 - $20 = $0.50
$0.50/10 = $0.05
Dan's monthly cost is the standard fee plus the charge per minute.
20 + 0.05m
Answer:
y=(-1/6)x -3
Step-by-step explanation:
y=(-1/6)x + b, plug in (6,-4) to solve for b
-4 = (-1/6)(6) + b
b = -4 + 1 = -3
Answer:
Step-by-step explanation:
35+12*x ; where x = amount of months