Girl_Ninja
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Questions Answered

Girl_Ninja:
Use Gaussian elimination to find the complete solution to the system of equations, or state that none exists.
4x  y + 3z = 12
x + 4y…
 updated 10 months ago
 31 replies
 2 Medals
Mathematics

Girl_Ninja:
Graph the ellipse and locate the foci.
x^2/36 + y^2/11 = 1
…
 updated 10 months ago
 9 replies
 2 Medals
Mathematics

Girl_Ninja:
HELP PLEASE Find the indicated sum.
4 Σ k =1 (1)^k (k + 11)
A. 28 B. 16 C. 70 D. 54
 updated 10 months ago
 18 replies
 2 Medals
Mathematics

Girl_Ninja:
Determine for what numbers, if any, the given function is discontinuous.
f(x) =
…
 updated 10 months ago
 14 replies
 2 Medals
Mathematics

Girl_Ninja:
Use properties of limits to find the indicated limit. It may be necessary to rewrite an expression before limit properties can be applied.
…
 updated 10 months ago
 3 replies
 2 Medals
Mathematics

Girl_Ninja:
Use the definition of continuity to determine whether f is continuous at a.
f(x) = 5/x + 5 a = 5
A. Not continuous B. Continuous
 updated 10 months ago
 5 replies
 2 Medals
Mathematics

Girl_Ninja:
Use the definition of continuity to determine whether f is continuous at a.
f(x) = x  4/x +5 a = 4
A. Not continuous B. Continuous
 updated 10 months ago
 5 replies
 2 Medals
Mathematics

Girl_Ninja:
Graph the function. Then use your graph to find the indicated limit.
f(x) = 7ex , lim x > 0 f(x)
…
 updated 10 months ago
 5 replies
 3 Medals
Mathematics

Girl_Ninja:
HELP PLEASE
Complete the table for the function and find the indicated limit.
…
 updated 10 months ago
 7 replies
 3 Medals
Mathematics

Girl_Ninja:
HELP PLEASE
Complete the table for the function and find the indicated limit.
…
 updated 10 months ago
 12 replies
 2 Medals
Mathematics

Girl_Ninja:
Use properties of limits to find the indicated limit. It may be necessary to rewrite an expression before limit properties can be applied.
…
 updated 10 months ago
 14 replies
 3 Medals
Mathematics

Girl_Ninja:
Use the definition of continuity to determine whether f is continuous at a.
f(x) = 5x^4  9x^3 + x  7a = 7
…
 updated 10 months ago
 4 replies
 2 Medals
Mathematics

Girl_Ninja:
Use the formula for the sum of the first n terms of a geometric sequence to solve. Find the sum of the first four terms of the geometric se…
 updated 10 months ago
 31 replies
 4 Medals
Mathematics

Girl_Ninja:
I WILL GIVE YOU A MEDAL
Use the formula for the sum of the first n terms of a geometric sequence to solve. Find the sum of the first 8 ter…
 updated 10 months ago
 18 replies
 3 Medals
Mathematics

Girl_Ninja:
Use the formula for the sum of the first n terms of a geometric sequence to solve. Find the sum of the first 8 terms of the geometric sequen…
 updated 10 months ago
 13 replies
 1 Medal
Mathematics

Girl_Ninja:
Find the sum of the infinite geometric series, if it exists. 4  1 + 1/4  1/6 + . . .
A.  1
…
 updated 10 months ago
 2 replies
 1 Medal
Mathematics

Girl_Ninja:
Evaluate the factorial expression.
…
 updated 10 months ago
 8 replies
 4 Medals
Mathematics

Girl_Ninja:
Find the common difference for the arithmetic sequence. 6, 11, 16, 21, . . .
A. 15
…
 updated 10 months ago
 3 replies
 3 Medals
Mathematics

Girl_Ninja:
Find the indicated sum.
5 Σ (i+11) i=1.
A. 28 B. 16 C. 70 D. 54
 updated 10 months ago
 5 replies
 2 Medals
Mathematics

Girl_Ninja:
Find the probability. What is the probability that a card drawn from a deck of 52 cards is not a 10?
A. 12/13
…
 updated 10 months ago
 7 replies
 2 Medals
Mathematics

Girl_Ninja:
Eliminate the parameter t. Find a rectangular equation for the plane curve defined by the parametric equations.
x = 6 cos t, y = 6 sin t; …
 updated 10 months ago
 13 replies
 1 Medal
Mathematics

Girl_Ninja:
Is the relation a function?
y = x^2 + 12x + 31…
 updated 10 months ago
 2 replies
 2 Medals
Mathematics

Girl_Ninja:
Sketch the plane curve represented by the given parametric equations. Then use interval notation to give the relation's domain and range. …
 updated 10 months ago
 1 reply
 1 Medal
Mathematics

Girl_Ninja:
Rewrite the equation in a rotated x'y'system without an x'y' term. Express the equation involving x' and y' in the standard form of a conic…
 updated 10 months ago
 1 reply
 1 Medal
Mathematics

Girl_Ninja:
Convert the equation to the standard form for a hyperbola by completing the square on x and y.
x^2  y^2 + 6x  4y + 4 = 0…
 updated 11 months ago
 20 replies
 3 Medals
Mathematics

Girl_Ninja:
Give the order of the matrix, and identify the given element of the matrix.
…
 updated 11 months ago
 1 reply
 1 Medal
Mathematics

Girl_Ninja:
Use Cramer's rule to solve the system.
2x + 4y  z = 32 x  2y + 2z = 5 5x + y + z = 20
…
 updated 11 months ago
 67 replies
 3 Medals
Mathematics

Girl_Ninja:
Determinants are used to show that three points lie on the same line (are collinear). If
x1 y1 1
x2 y2 1
…
 updated 11 months ago
 3 replies
 2 Medals
Mathematics

Girl_Ninja:
MY ANSWER IS B
Use Cramer's rule to determine if the system is inconsistent system or contains dependent equations.
…
 updated 11 months ago
 2 replies
 3 Medals
Mathematics

Girl_Ninja:
HELP PLEASE ;)
 updated 11 months ago
 5 replies
 2 Medals
Mathematics
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