(877) 999-2681  | BECOME A TUTOR | BECOME A STUDENT  |  Sign In
Search 73,462 tutors SEARCH
WyzAnt Tutoring Tutor Tutor United States

## Tracy - I love Math and Language Arts!

### West Chester, OH (45069)

 Travel Radius 15 miles Hourly Fee \$40.00 Save up to 15%
 Background Check Passed 4/30/2012 Your first hour with any tutor is always 100% refundable!

# Tracy's Responses in WyzAnt Answers

#### (–1)(4 – c)simplify using distributive property

simplify  using distributave property

(-1)(4-c)

+ more- less
Asked by Mariah from Los Angeles, CA
10

In this case, it is always good to remember you are distributing a negative one by putting parentheses around it.  For example, you may see other types of problems that won't have the negative in parentheses and it is good practice to do so.

Example:  Add:  2(3x+2) - 4(6x -2)

In this example, we will distribute the 2 across the 3x and +2 to give us 6x +4

Then, we need to see that negative sign in the next operation and ensure it distributes across as a negative 4.  Doing so will give us -24x +8      -4(6x-2) = -24x +8

Now we take 6x +14 -24x +8 and combine like terms to simplify -18x +26

---------------------------------------------------------------------------------------------------------------------

With the case of -1(4-c), this is a simple version of the the above problem, so we will treat it the same

-1(4-c) ------> -4-(-c) ---------> -4 + c

We could leave it as -4 + c, or flip it around to read c -4

#### What is the area of the triangle in cm

7 is on the base of the triangle & 13 is on the right side of the triangle

+ more- less
Asked by Gavin from Bentonville, AR
00

Another way to remember the formula for the Area of a Right Triangle is:

A = (b x h)/2

Sometimes, students can remember this more readily and it's just as accurate.

So, A = (7 x 13)/2 = 91/2 = 45.5 cm2

Thanks,

Tracy

#### x squared =24

Multiple answers on this one, just confused.

+ more- less
00

The answer would be 2√6   (read as "2 square root of 6")

#### the equation that represents the line that passes through the point (-2, -1) and has a slope of 5.

Not sure what the answer is to this one

+ more- less
Asked by Amy from Titusville, FL
00

Hi -- For this problem, you have already been given some useful information and can use the information to plug in to the standard point-slope formula.  When we talk about point-slope, we mean we have one point defined (-2,-1) and the slope is known (which is 5/1).

First, we have the point-slope formula:

y-y1 = m(x-x1)

Second, we will plug in what we know from what was given in the problem

x1 = -2  and y1 = -1

m = 5

Third, let's plug in what we know!

y-(-1) = 5(x-(-2))   Don't forget a (-)(-) = +

y+1 = 5(x+2)         Now, distribute the 5 across (x+2)

y+1 = 5x+10         Now, combine like terms by subtracting 1 from both sides

y = 5x+9              This is the equation of your line with m=5 and y-intercept = (0,9)

#### x + 3y = -4, 4x + 5y = 5

solve using subsitution

+ more- less
Asked by Averie from Naples, FL
00

This is a system of equations with two variables.   We want to end up with a solution set that looks like this (x, y) where x an y are numerical values.  This is a simple substitution problem where the goal will be to define our variables x & y such that we can then plug them into the original equation and solve for one of them, then repeat the process and solve for the other.

x + 3y = -4  (Call this Equation 1)

4x + 5y = 5   (Call this Equation 2)

In the equations above, we have two variables in two equations.  The variables are x and y.  We can define the value of the variable x in Equation 1 by subtracting 3y from both sides

x + 3y = -4    (Equation 1)

- 3y     -3y

x = -3y - 4     ("new" Equation 1)

By defining the variable x in Equation 1, I can say, "hey look, now I can put the value of x into the second equation anywhere I find an x.

4x + 5y = 5 ( Equation 2)

4(-3y -4) + 5y = 5  (Plug in Equation 1 wherever there is an "x")

-12y -16 + 5y = 5  (distribute the 4 across the binomial)

-7y -16 = 5          (combine like terms)

+16    +16       (add 16 to both sides)

-7y = 21               (Divide both sides by -7)

-7

y = -3

Now, take this value of y = -3 and plug it back into equation 1 to solve for x.

x + 3y = -4

x + 3(-3) = -4

x -9 = -4                 (Add 9 to both sides)

+9    +9

x = 5

The solution set for this system of equations with two variables is (5, -3)

## Other West Chester, OH Tutors

### Tracy's Hourly Rate

Hourly Fee: \$40.00

Save up to 15% with a discount package

Cancellation: 8 hours notice required

#### How do I receive a discount?

Save between 5 and 15% on tutoring by purchasing credit with one of our prepaid discount packages. You can buy one of our standard 5, 10 or 15% packages or customize your own package based on how much tutoring you need. The credit you purchase can be used towards any tutor at any time and does not expire. If you do not use the entire package, we will simply deduct what you did spend on tutoring from your original purchase price and give you a refund. Discount packages start as low as \$190.

Credit For Only You Save
\$200 - \$399 \$190 - \$379 5%
\$400 - \$999 \$360 - \$899 10%
\$1,000 + \$850 + 15%

Your first hour with any tutor is protected by our Good Fit Guarantee: You don't pay for tutoring unless you find a good fit!

## Background Check Status for Tracy G.

Tracy G. passed a background check on 4/30/2012. You may run an updated background check on Tracy once you send an email.