Answer:
3p+4=25
Step-by-step explanation:
3p+4=25
Answer:
Step-by-step explanation:
Isolate the variable
3p + 4 - 4 = 25 - 4
Simplify
3p = 21
Solve for p
3p/3 = 21/3
p=7
b. The vertex is (–1, 4), the domain is all real numbers, and the range is y ≤ 4.
c. The vertex is (1, 4), the domain is all real numbers, and the range is y ≥ 4.
d. The vertex is (1, 4), the domain is all real numbers, and the range is y ≤ 4.
Answer:
the answer is B
Step-by-step explanation:
the domain equals to be (-1,4) and a equals more than 0 so it is y ≤ 4
Answer:
Part 1) The best choice is Plan A
Part 2) The data is
Step-by-step explanation:
Part 1)
Let
y ----> the cost per month
x ----> the number of GB of data per month
we know that
Plan A
Plan B
Find out which plan is the best choice if he uses five to eight GB of data per month
Plan A
For x=5 GB -----> y=5(5)+30=$55
For x=8 GB -----> y=5(8)+30=$70
so
with Plan A the cost is between $55 and $70 -----> average $62.5
Plan B
For x=5 GB -----> y=2(5)+50=$60
For x=8 GB -----> y=2(8)+50=$66
so
with Plan B the cost is between $60 and $66 ----> average $63
therefore
The best choice is Plan A
Part 2) How much data would Irfan need to use for both plans to cost the same?
we have
y=5x+30 ----> equation A
y=2x+50 ----> equation B
Solve the system of equations by elimination
Subtract equation B from equation A
0=5x-2x+30-50
0=3x-20
3x=20
Convert to mixed number
----> for this data the cost is the same in both plans
B.The range is all real numbers greater than or equal to 1.
C.The y-intercept is 3.
D.The graph of the function is 1 unit up and 2 units to the left Efrom the graph of y = x2.
F.The graph has two x-intercepts.
This is a polynomial function called Quadratic Function. This is written as:
Recall that the graph of a quadratic function is a special type of U-shaped curve called parabola. The graph of this function is shown in the Figure below. From that, we can say the following:
A. The domain is all real numbers.
This is true. In fact, the domain of any polynomial function is the set of all real numbers.
B. The range is all real numbers greater than or equal to 1.
This is false. Instead, the range is all real numbers greater than or equal to 2, that is the of the vertex.
C. The y-intercept is 3.
This is true. We can find the letting , so:
D. The graph of the function is 1 unit up and 2 units to the left from the graph of
This is false. The correct statement is that the graph of the function is 2 units up and 1 unit to the left from the graph of
E. The graph has two x-intercepts.
This is false. As shown the graph below, this function does not have any
Answer:
A and C
Step-by-step explanation: