Every 30 min the tank fills up to 40 gallons
Answer:
(B)21+3a
Step-by-step explanation:
An expression is said to be distributive when:

Given the algebraic expression: (7 + a)3
Applying the distributive property

An equivalent expression is 21+3a.
The correct option is B
Options:
(2, 2), (3, 1), (4, 2)
(2, 2), (3, –1), (4, 1)
(2, 2), (1, –2), (0, 2)
(2, 2), (1, 2), (2, 0)
Answer:
A. (2, 2), (3, 1), (4, 2)
Step-by-step explanation:
Given


Required
Solve for x and y
To solve this, we make use of graphical method (see attachment for graph)
All points that lie on the shaded region are true for the inequality
Next, we plot each of the given options on the graph
A. (2, 2), (3, 1), (4, 2)
All 3 points lie on the shaded region.
<em>Hence, (a) is true</em>
1) We have to calculate the first derivative:
y=2x²+2
y´=4x
2) the slope at the point x=3; will be f´(3);
f´(3)=4(3)=12
answer: the slope will be 12.
Step-by-step explanation:
In a equation of a line
y=mx+c
Let's take two points from the graph (0,1) and (4,3)
Slope=m= (3-1/4-0)= 2/4=1/2
C= 1
y=½x+1