3A.
Find the domain and range of the function. (Enter your answer
using interval notation.)
h(x) =
8
x + 7
Domain
Range
3B.
Determine whether y is a function of x.
xy + x3 −
2y = 0
Yes, y is a function of x.
No, y is not a function of
x.
It cannot be determined whether y is a function of
x.
3C.
Consider the following function. Find the composite
functions
f ∘ g
and
g ∘...
If n=230 and X = 184, construct a 99% confidence interval.
Enter your answer as an open-interval
(i.e., parentheses) using decimals (not percents) accurate
to three decimal places.
Confidence interval = answer _____
Express the same answer as a tri-linear inequality using
decimals (not percents) accurate to three decimal places.
answer _____ < p < answer _____
Express the same answer using the point estimate and margin of
error. Give your answers as decimals, to three places.
p = answer...
solve the following
1. solve the following inequality for X
2x^2 +5x <3
2. without solving the equation 2x^2 +5x =3, how would
I know that it has two rational solutions.
3. 3^2(x+1) - 8.3^x+1 = 1
4. log (x+1) + log x =1
4.1. show that the above equation will have a
irrational root if the base is changed to 2, and a rational root if
the base is changed to 4
5. the sum of squares of two...
1. Divide. (Simplify your answer completely.)
6x3y6
14a4b2
÷
36x4y3
16a9b
2. Solve. (Enter your answers as a comma-separated list.)
y + 2
y2 − y − 2
+
y + 1
y2 − 4
=
1
y + 1
3. Solve by using the quadratic formula. (Enter your answers as
a comma-separated list.)
w2 + 9w − 5 =
0
w =
4.
Find the coordinates of the x-intercepts of the
parabola given by the equation. (If an answer...
1, Let
f(x)=x3/3−0.5x2−6x
Find the interval where f(x) is decreasing.
Enter your answer for the left endpoint in the first textbox, and
right endpoint in the second textbox:
Consider the function f(x)=arctan [(x+6)/(x+5)] Express the
domain of the function in interval notation: Find the y-intercept:
y= . Find all the x-intercepts (enter your answer as a
comma-separated list): x= . Does f have any symmetries? f is even;
f is odd; f is periodic; None of the above. Find all the asymptotes
of f (enter your answers as comma-separated list; if the list is
empty, enter DNE): Vertical asymptotes: ; Horizontal asymptotes: ;
Slant asymptotes: . Determine the...
Consider the function f(x)=arctan [(x+6)/(x+5)]
Express the domain of the function in interval notation: Find
the y-intercept: y= . Find all the x-intercepts (enter your answer
as a comma-separated list): x= . Does f have any symmetries? f is
even; f is odd; f is periodic; None of the above. Find all the
asymptotes of f (enter your answers as comma-separated list; if the
list is empty, enter DNE): Vertical asymptotes: ; Horizontal
asymptotes: ; Slant asymptotes: . Determine the...
Enter your answer in the provided box in scientific notation. A
hydrogen-like ion is an ion containing only one electron. The
energy of the electron in a hydrogen-like ion is given by
En = −(2.18 × 10−18J) Z2 (1/n2)
where n is the principal quantum number and Z is the atomic
number of the element.
Plasma is a state of matter consisting of positive gaseous ions
and electrons. In the plasma state, a mercury atom could be
stripped of its...