Answers only for the following questions.

Solve -?(2x+1)=-9 for x

Which of the following best describes imaginary numbers?

What are the mean and standard deviation of the data -6, 12, 2, -4, 1, 6, 0, 3?

Rationalize the denominator of 2/?(a-1)

Simplify ?(16x^4 y^5 ) ?(243y^7 ) assuming the variables represent non-negative numbers.

Simplify i^23

Two children in nearby houses attempt to use walkie-talkies to communicate. The walkie-talkies reach one quarter of a mile (1320 feet). From on childs house to the other, the walk along the city sidewalks is as follows: Proceed 450 feet from the first house to the nearest corner, turn right ?90?^o and proceed another 1050 feet. Are the childrens houses within the 1320-foot range of one another? Choose the best answer.

Simplify ?810

Combine like radicals in ?(5&2x)-?(5&32x^5 )+?(5&-64x)+?(8x^3 )

Compute the value of |-6-6i|

Which of these expressions is in simplified form?

Which of these points is 5 units away from the point (6,-1)?

Simplify (5?2)/(2-i) by rationalizing the denominator.

Which of these expressions simplifies to (?3 (|x|-5x^2 ))/3?

Which expression has the same value as ?25?^(1/2)?

What best describes the triangle whose corners are located at the points (1, 1), (2, 2), and (0, 16)?

Which of these radical expressions simplifies to x?

Expand (x-2?y)(x+2?y) and simplify. Assume y ? 0.

Solve ?2x+x=4 for x.

Which of these phrases best describes the standard deviation?

To solve ?x+?(x-5)=5 for x, begin with which of these steps?

Simplify (6-i)(2+i)

Rationalize the denominator (?x+?y)/(?x-?y) assuming x > 0 and y? 0.

Simplify ?(-16xy^6 )

Simplify 2?2 (-?8+2?6)

Radicals and

lancer

**Excerpt from file: **1. Solve -(2x1)-9 for x x 40 2. Which of the following best describes imaginary numbers? They are the values of expressions of the form -a for various real numbers a, as long as a0. 3. What are the mean and standard deviation of the data ...

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