Answer:
Step-by-step explanation:
(7, 0) = (h, k), r = 3
Equation of circle in standard form is given as:
Substituting the values of h, k and r.
Which is the required equation of the circle.
Answer:
m = -8/5
Step-by-step explanation:
First determine how much x changes as we go from the first point to the second: -1 to +4. This change (the 'run') is 5 units.
Then find the change in y: -4 - (4) = -8. This change (the 'rise') is -8.
Thus the slope m = rise / run is m = -8/5
Answer:
substitute 10 for y (y=10) and solve for t
2.17
Step-by-step explanation:
I think the equation is written wrong because assuming that his wage increases at the end of each year, the beginning of the first year wages should be 7.72, not 0.
recommended correction
y=7.72 + (1.05)t
Answer:
1.04P
P+0.04P
Step-by-step explanation:
To add tax, you add 4% or 0.04 of the total paid.
This can represented in many ways including 1.04P or 100% of teh price plus 4% of the price. This is 104% or 1.04 times the price P
You can also add to the price P + 0.4P the percent of the price.
Answer:
$11.9
Step-by-step explanation:
We are given;
The cost of the cell phone is $170
Tax rate is 7%
We are required to find how much tax is paid on the cell phone.
The tax rate is 7% of the cost of the cell phone
That is;
7% of $170
also; 7/100 of $170
Thus, tax paid = 7/100 × $170
= $11.9
Thus, the tax paid on the cell phone is $11.9