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## Summer Tutoring - Patient and Experienced

### Minneapolis, MN (55414)

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# Katherine's Responses in WyzAnt Answers

#### 6,500 cl = ----- L

6,500 cl = how many Liters

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Asked by Belinda from Mocksville, NC
20

### Katherine's Answer:

cl = centiliters

1 centiliter = 0.01 liter  (centi means one hundredth)

6,500 cl x 0.01 liters/cl = 65 liters

#### undefined?

Which value of n makes the expression  5n over 2n-1  undefined?

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Asked by Mikayla from Chittenango, NY
10

### Katherine's Answer:

The expression would be undefined when the denominator equals zero (since you can't divide by zero).

So to solve, we take the denominator (2n -1) and set it equal to 0.

2n - 1 = 0

Solve for n:

2n = 1

n = 0.5

The expression is undefined where n = 0.5

Hope that helps! Please vote if it did :)

#### Which is subject and which is predicate in the sentence "My name is Neil"

Which is subject and which is predicate in the sentence "My name is Neil"

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Asked by Subhamay from Elton, LA
10

### Katherine's Answer:

The subject is "My name"  (the what/whom the sentence is about, in this case someone's name)

The predicate is "is Neil"  (the predicate tells something about the subject, in this case what the person's name is)

#### Which is a simplified form of the expression -2(x – 9) – x?

Which is a simplified form of the expression -2(x – 9) – x?

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Asked by Nicolette from Glenwood Springs, CO
10

### Katherine's Answer:

1. Start by bringing the -2 through the parentheses:

-2(x - 9) - x

-2x + 18 - x

2. Now combine the x terms

-3x + 18

And you're done! When you're looking for simplest form, work to eliminate the parentheses and combine like terms.

#### x * x - 5x + 6

The x is actually x squared. Whats the answer?

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Asked by Ashley from Bellevue, ID
10

### Katherine's Answer:

Given x^2 - 5x + 6, you have a few options, such as using the quadratic formula, factoring, or completing the square.

You labeled this question under factoring, so let's use that method:

Since the coefficient of your middle term is negative (-5) and your last term is positive (+6), you will have an expression of the form:

(x - __) (x - __)

You are looking for two numbers which sum to -5 and have a product of 6.

-2 and -3 work (-2 + -3 = -5; -2 x -3 = 6)

(x - 2) (x -3)

If you're asked to solve for the zeros, that means setting the expression equal to zero and solving for x.

(x - 2) (x - 3) = 0

x = 2, 3

Hope this helps!

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