# Posts by Jackster

Total # Posts: 30

**Math**

How do i solve using the elimination method. If the system has no solution or an infinite number of solutions, state this. 2x + 10y = 58 -14x + 8y = 140

*March 23, 2011*

**math help**

A 125-ft diagonal brace on a bridge connects a support of the center of the bridge to a side support on the bridge. The horizontal distance that it spans is 25 ft longer that the height that it reaches on the side of the bridge. Find the horizontal and vertical distances ...

*March 22, 2011*

**math**

Find the following product: (y-10)^2

*March 13, 2011*

**Algebra**

Find the degree show all work: a^3b^8c^2 - c^22 + a^5c^10

*March 10, 2011*

**algebra**

Consider that the age, x, of a unicorn in human equivalent years can be given by the formula f(x) = - 0.001518x4 + 0.067326x3 – 1.4367x2 + 12.46x + 2.914. When a unicorn is 2.5 years old, what is its age in human equivalent years? What about when it is 12 years old?

*March 8, 2011*

**word problem**

Bob’s Barber Shop estimates their gross revenue for the second quarter to be given by the polynomial 8x3 – x2 – 2x + 4. The shop estimates their costs for that quarter to be given by x2 – 4x + 7. For the second quarter, find and simplify a polynomial that ...

*March 7, 2011*

**Math**

adding (1/4x^2-1/6x-3/8)+(1/4x^2-1/4x-1/2)

*March 6, 2011*

**Word Problem**

Suzie’s flower shop estimates that supplies costs for one month will be given by the polynomial 5x2 + 4x – 7. She estimates that utilities costs for one month is given by 8x + 8. Find and simplify an expression that would estimate Suzie’s total costs for one month.

*March 4, 2011*

**word problem**

Participants in a psychology experiment were able to memorize an average of M words in t minutes, where M = −0.001t3 + 0.1t2 Estimate the number of words memorizes after 14min where M=-0.001t^3 +0.1t^2

*March 4, 2011*

**Math**

multiply and check (a^2+4)(5a^3-3a-1)

*March 3, 2011*

**Math**

ADD: (14.9a^3+3.2a^2-5.1a)+(2.1a^2-3.7a+4.6)

*March 3, 2011*

**Math**

Express the answer using scientific notation; retain all nonzero decimal places. (1.9 • 10^4) • (8.4 • 10^5)

*March 3, 2011*

**math**

Simplify the following quotient of complex numbers into the form a + bi. -8-8i/1+2i

*March 2, 2011*

**math**

Simplify the following product of complex numbers. (8 + i) • (-4 – 3i)

*March 2, 2011*

**math**

Express the answer using scientific notation; retain all nonzero decimal places. (1.9 • 104) • (8.4 • 105)

*March 2, 2011*

**math**

Raise the quantity in parentheses to the indicated exponent, and simplify the resulting expression. Express answers with positive exponents. (-33xy^-1/66x^0y^-3)2

*March 2, 2011*

**Math**

(5x ^3)^2(2x^7)

*March 2, 2011*

**Math**

Simplify the following expression, and rewrite it in an equivalent form with positive exponents. -14xy / 42x^5y^8

*March 1, 2011*

**Math**

Use scientific notation to divide the following two numbers. Express the answer using scientific notation; retain at least three decimal places. 6.2 • 107 / 4.15 • 103

*March 1, 2011*

**Inter algebra**

Simplify the following expression, and rewrite it in an equivalent form with positive exponents. (10x-5)-5

*March 1, 2011*

**agebra**

simplify -14xy / 42x^5y^8

*March 1, 2011*

**Inter algebra**

help, I am stuck on this one. -ã(7c)^2

*March 1, 2011*

**algebra**

3X/ X^(-1)

*February 28, 2011*

**algebra**

How do i solve these kind of problems? -ã((7c)^2)

*February 28, 2011*

**Algebra**

(5x ^3)2(2x^7)

*February 28, 2011*

**college algebra**

-ã(7c)^2

*February 27, 2011*

**algebra**

Solve using the elimination method. Show your work. If the system has no solution or an infinite number of solutions, state this. -5x – 7y = 25.5 -2x + 10y = -9

*February 21, 2011*

**algebra**

Solve using the elimination method. Show your work. If the system has no solution or an infinite number of solutions, state this. -3x + 6y = -3 / -6x + 4y = -10

*February 21, 2011*

**math**

How do I find the quotient of: 4x^2-9y^2 / 2x+3y

*February 3, 2011*

**algebra 2**

Find the quotient: 6x^3 + 5x^2 + 2x +1 / 2x +3

*January 24, 2011*

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