Answer:
<h2> 25 centimeters</h2>
Step-by-step explanation:
Ratio 4:5 means:
width: W = 4x
length: L = 5x
Area of rectangle: A = W×L
Therefore:
500 = 4x×5x
500 = 20x²
50 = 2x²
x² = 25
x = 5
W = 4×5 = 20 cm
L = 5×5 = 25 cm
Step-by-step explanation:
a)
<u>g(3) = 9 </u>
b)
<u>g(-1) = 1</u>
c)
<u>g(-x) = x²</u>
d)
<u>g(2y) = 4y²</u>
e)
<u>g(1 + h) = 1 + h² + 2h</u>
<em>using</em><em> </em><em>the</em><em> </em><em>identity</em><em> </em><em>(</em><em>a</em><em> </em><em>+</em><em>b</em><em>)</em><em>²</em><em> </em><em>=</em><em> </em><em>a</em><em>²</em><em> </em><em>+</em><em> </em><em>b</em><em>²</em><em> </em><em>+</em><em> </em><em>2ab</em>
Answer:
Increasing by $66 per day
Step-by-step explanation:
If sales are dropping at a rate of 2 per day, the sales function is:
If price is increasing by $1 per day, the daily price function is:
Revenue is given by daily sales multiplied by daily price:
The derivate of the revenue function gives us the daily rate of change in revenue:
Currently (t=0) her daily revenue is changing by:
Her revenue is increasing by $66 per day.
The third one
x,y —>-x,-y
Because 2,-1–>-2,1
$4000 is the goal because if you do 2400/3= 800 so 800 x 5 = 4000
