Answer:

Step-by-step explanation:
The required answer is the rate at which Machine A works when the two machines are combined.
Note: the rate of doing work is express as

Hence we can conclude that Machine A working rate is
and machine B working rate is

When the two machine works together, the effective working rate is

The fraction of the work that Machine B will not have complete because of Machine A help is the total work done by machine A
Hence the fraction of work done by A is expressed as


Hence the fraction of the work that Machine B will not have complete because of Machine A help is the total work done by machine A is 
Answer:
FIRST OPTION.
THIRD OPTION.
FOURTH OPTION.
FITH OPTION.
Step-by-step explanation:
The equation of the line in slope-intercept form is:

Where m is the slope, b the y-intercept and the exponent of x is always 1 or 0.
Solve for y from the equations shown below:

(In this linear function the slope is 0)

(It is a linear function)

(It is a linear function)
Equation of the line whose slope is not defined:

Answer:
Answer A is Linear. You can see this because each term is equal to the previous term plus a fixed amount (3), making it an arithmetic sequence.
Answer B is <u>not</u> linear. This is because each term is a multiple of the previous one, making it a geometric sequence.
Answer:
45 miles per hour.
Step-by-step explanation:
360 / 8
= 45 miles per hour.
Answer:
31.5 cm²
Step-by-step explanation:
Calculate area of a triangle with this formula:
Area =
base * height
Substitute in known values
Area =
7 * 9
Multiply 7 by 1/2
Area = 3.5 * 9
Multiply
Area = 31.5 cm²
Hope this helps :)