Answer:
a) OA = 1 unit
b) OB = 3 units
c) AB = √10 units
Step-by-step explanation:
<u>Given function</u>:

<h3><u>Part (a)</u></h3>
Point A is the y-intercept of the exponential curve (so when x = 0).
To find the y-value of Point A, substitute x = 0 into the function:

Therefore, A (0, 1) so OA = 1 unit.
<h3><u>Part (b)</u></h3>
If BC = 8 units then the y-value of Point C is 8.
The find the x-value of Point C, set the function to 8 and solve for x:

Therefore, C (3, 8) so Point B is (3, 0). Therefore, OB = 3 units.
<h3><u>Part (c)</u></h3>
From parts (a) and (b):
To find the length of AB, use the distance between two points formula:


Therefore:





Answer:
84.74 L
Step-by-step explanation:
22.3*3.8
estimate 22 gal *4 L/gal = 88L
so 84.74
To calculate,
22.3*3.8 = 84.74
A+a+4+2a-3= 21
combine like terms
1+4a= 21
-1. -1
4a= 20
————
4a. 4
a= 5
Answer: 0.556
Step-by-step explanation:
Answer:
10
Step-by-step explanation:
If 100 is the area find the number that you can multiply by itself to get 100.
10*10=100
A=r∧2 π or Area= radius to the power of 2 times pi