Answer:
$20.43 is how much tip was
Step-by-step explanation:
27% >>> .27
.27 * 75.68 = 20.43 tip
Bonus: $96.11 is the all out total
C. a slanting plane cutting two adjacent edges of the base
D. a slanting plane containing exactly one edge of the cube
Answer:
C. a slanting plane cutting two adjacent edges of the base
Step-by-step explanation:
The base of a cube is parallel to the horizon. A plane cuts through the cube creating a pentagon-shaped cross section. The plane could be - a slanting plane cutting two adjacent edges of the base.
The equation of the line that is tangent to the circle at (8, -2) is:
We know that the line which is tangent at a point on a circle is perpendicular to the line joining the center of the circle and that point.
Here we are given the equation of a circle as:
The center of the circle is at: (3,-2)
( Since, the standard form of a circle with center at (h,k) and radius r is given by:
)
Also, the equation of a line joining (3.-2) and (8,-2) is given by:
Also, we know that the slope of this line is zero.
Also, we know that if two lines are perpendicular with slope m and m' respectively then,
Hence, we get that the slope of the tangent line is:
Also, we know that:
The equation of a line with given slope m' and a passing through point (a,b) is given by:
Here (a,b)=(8,-2)
and
i.e. the equation of the tangent line is:
Answer:
Hence, it will take about 73 years for the population to triple.
Step-by-step explanation:
For this case we have an exponential function P(t) which represents the population at time 't' ; which is given as:
i.e. the equation is represented of the form:
Where,
A: initial amount ( Here we have A=430000)
b: growth rate (Here we have b=1.015)
t: time in years.
As the population has to triple over the time.
Hence, Substituting values we have:
⇒
Taking logarithmic function on both side we have:
( Since )
⇒
Hence, It will take for the population to triple about:
t = 73 years
a. 6,487
b. 6,587
c. 9,991
d. 12,621