sarahc
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Questions Answered

sarahc:
Group Title
Find the indicated limit, if it exists.
limit of f of x as x approaches 8 where f of x equals x plus 10 when x is less than 8 and f of x…
 updated yesterday
 3 replies
 2 Medals
Mathematics

sarahc:
Group Title
Find the derivative of f(x) = 6 divided by x at x = 2.
6
…
 updated 7 days ago
 6 replies
 3 Medals
Mathematics

sarahc:
Group Title
HELPPPPPP
The graph of a limacon curve is given. Without using your graphing calculator, determine which equation is correct for the grap…
 updated 17 days ago
 7 replies
 1 Medal
Mathematics

sarahc:
Group Title
HELP! WILL MEDAL! The graph of a limacon curve is given. Without using your graphing calculator, determine which equation is correct for the…
 updated 17 days ago
 3 replies
 No Medals Yet
Mathematics

sarahc:
Group Title
WILL AWARD MEDAL! NEED HELP ASAP :)
Determine two pairs of polar coordinates for the point (2, 2) with 0° ≤ θ < 360°.
…
 updated 18 days ago
 3 replies
 1 Medal
Mathematics

sarahc:
Group Title
Determine two pairs of polar coordinates for the point (2, 2) with 0° ≤ θ < 360°.
(2 square root of 2, 225°), (2 square root of 2, 45°…
 updated 18 days ago
 1 reply
 No Medals Yet
Mathematics

sarahc:
Group Title
PLEASE HELP!
Find the rectangular coordinates of the point with the polar coordinates (1, 1 divided by 2 pi).
…
 updated 18 days ago
 5 replies
 1 Medal
Mathematics

sarahc:
Group Title
Use your grapher to determine which of the graphs matches the polar equation r = 3 sin 2θ.
…
 updated 20 days ago
 1 reply
 No Medals Yet
Mathematics

sarahc:
Group Title
Find the rectangular coordinates of the point with the polar coordinates (1, 1 divided by 2 pi).
(0, 1)
…
 updated 25 days ago
 4 replies
 No Medals Yet
Mathematics

sarahc:
Group Title
Find an equation in standard form for the hyperbola with vertices at (0, ±6) and asymptotes at
y = ±three divided by four times x.
…
 updated one month ago
 2 replies
 No Medals Yet
Mathematics

sarahc:
Group Title
Find the vertices and foci of the hyperbola with equation x squared over sixteen minus y squared over forty eight = 1
Vertices: (0, ± 4)…
 updated one month ago
 5 replies
 2 Medals
Mathematics

sarahc:
Group Title
HELP NEEDED ASAP
Graph the hyperbola
 updated one month ago
 13 replies
 1 Medal
Mathematics

sarahc:
Group Title
HELP!!
Graph the hyperbola with the equation (x+3)^2/4  (y3)^2/9 = 1
 updated one month ago
 9 replies
 1 Medal
Mathematics

sarahc:
Group Title
PRE CALC HELP
 updated 2 months ago
 5 replies
 1 Medal
Mathematics

sarahc:
Group Title
Find the standard form of the equation of the parabola with a focus at (7, 0) and a directrix at x = 7.
y = one divided by twenty eight…
 updated 2 months ago
 9 replies
 1 Medal
Mathematics

sarahc:
Group Title
Use mathematical induction to prove the statement is true for all positive integers n.
8 + 16 + 24 + ... + 8n = 4n(n + 1)
 updated 3 months ago
 17 replies
 2 Medals
Mathematics

sarahc:
Group Title
A certain species of tree grows an average of 4.2 cm per week. Write an equation for the sequence that represents the weekly height of this …
 updated 3 months ago
 3 replies
 2 Medals
Mathematics

sarahc:
Group Title
Let u = <6, 9>, v = <1, 4>. Find u  v.
<5, 5>
…
 updated 3 months ago
 2 replies
 1 Medal
Mathematics

sarahc:
Group Title
Find a ⋅ b.
a = 6i  6j, b = 4i + 2j
…
 updated 3 months ago
 9 replies
 1 Medal
Mathematics

sarahc:
Group Title
The given measurements may or may not determine a triangle. If not, then state that no triangle is formed. If a triangle is formed, then use…
 updated 3 months ago
 2 replies
 No Medals Yet
Mathematics

sarahc:
Group Title
Express the complex number in trigonometric form.
5i
…
 updated 3 months ago
 4 replies
 1 Medal
Mathematics

sarahc:
Group Title
Determine whether the vectors u and v are parallel, orthogonal, or neither.
u = <1, 2>, v = <4, 8>
 updated 3 months ago
 8 replies
 1 Medal
Mathematics

sarahc:
Group Title
Find a ⋅ b.
a = <2, 4>, b = <2, 5>
…
 updated 4 months ago
 2 replies
 No Medals Yet
Mathematics

sarahc:
Group Title
Evaluate the expression:
v ⋅ w
…
 updated 4 months ago
 3 replies
 1 Medal
Mathematics

sarahc:
Group Title
If there are 500 oak trees in a forest covering 50 square kilometers then the population density is
10 trees per square kilometer
100 tr…
 updated 10 months ago
 5 replies
 3 Medals
Mathematics

sarahc:
Group Title
In the oceans, global warming has ______.
decreased the amount of oxygen available
made the water more acidic
…
 updated 10 months ago
 5 replies
 1 Medal
Mathematics

sarahc:
Group Title
The first letter of important words in titles should be
capitalized
left as they appear in the publication
…
 updated 10 months ago
 16 replies
 1 Medal
Mathematics

sarahc:
Group Title
The fossil record suggests that whales
once had welldeveloped hind flippers.
are descended from one branch of marine reptiles.
…
 updated 10 months ago
 6 replies
 1 Medal
Mathematics

sarahc:
Group Title
Is this a stressor or a hassle? HELP
 updated one year ago
 5 replies
 1 Medal
Mathematics

sarahc:
Group Title
Is this a stressor or a hassle?
 updated one year ago
 4 replies
 3 Medals
Mathematics
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