how is evaluating an expression with fractions like evaluating an expression with whole numbers? how is it different?

MATH HELP 15 POINTS SLOPES!!!!!! ANSWER ALL 3 QUESTIONS

8090 [49]

Question 1.
First solve for slope: $\frac{0-8}{8-0} = \frac{-8}{8} = -1$
Point-slope formula is: $y2 - y1 = m(x - x1)$ where m = slope.
Plug in values for PS form: $y - 0 = -1(x - 8)$
So the answer is Choice 2.

Question 2.
Choice D.
Points given: (-10, -7) and (3, -7)
Both y -intercepts are equivalent to -7

Question 3.
Choice A.
Points given: (2, 4) and (2, -7)
Both x - intercepts are equivalent to 2

3 0

3 years ago

Read 2 more answers

Given g (x) = 20x - 189 what is g (1/2) please help me quick!

bonufazy [111]

G(x) = G(1/2)
So just plug in

20(1/2) - 189
10-189
= -179

Your final answer is -179

Hope this helped! Let me know if you have any questions.

Mark me Brianliest please:)

3 0

3 years ago

Nadia is a stockbroker. She earns 11% commission each week. Last week, she sold $7,000 worth of stocks. How much did she make

makvit [3.9K]

Answer:

Nadia's commission per week is $770

Amount Nadia made in commission in 2011 is $40,040

Step-by-step explanation:

Commission made last week = 11% of $7,000

Therefore commission made last week = 0.11 × $7,000 = $770

Whereby Nadia averages the same aount each week, the amount Nadia would make in commission in 2011 is given by

Amount Nadia makes per week in commission = $7,000

Number of weeks in a year = 52 weeks. Therefore, amount Nadia makes in one year is given by

Amount in commission per week × 52 weeks

=$770 × 52 = $40,040

Amount Nadia made in 2011 = $40,040.

5 0

3 years ago

A rectangular tract of land in Mathville has the dimensions 4x2 + 3x + 12 and 4x – 2. Another rectangular area of a land in Alge

Goryan [66]

Answer:

Step-by-step explanation:

Area of a rectangle = Length * Width

Given the dimension

Length = 4x2 + 3x + 12

Width = 4x – 2

A) Area = (4x^2 + 3x + 12)(4x – 2)

Open the parenthesis

= 16x^3-8x^2+12x^2-6x+48x-24

Area of land in Mathville = 16x^3+4x^2+42x-24

For the land in Algebratown

Area = (5x^2 + x – 4)(2x + 1)

Area = 10x^3+5x^2+2x^2+x-8x-4

Area = 10x^3+7x^2-7x-4

B) difference between the area of Mathville and the area of Algebratown

= 16x^3+4x^2+42x-24 -(10x^3+7x^2-7x-4)

= 16x^3+4x^2+42x-24 -10x^3-7x^2+7x+4

collect like terms

= 16x^3-10x^3+4x^2-7x^2+42x+7x-24+4

= 6x^3-3x^2+49x-20

C) The difference if x = 9

Substitute x = 9 into the resulting function

A(x) = 6x^3-3x^2+49x-20

A(9) = 6(9)^3-3(9)^2+49(9)-20

A(9) = 2187-243+441-20

A(9) = 2,365

Hence the difference of the areas if x = 9 is 2,365

6 0

3 years ago

Jay bought a guitar on sale at 45% off. The original price was $576.75.

topjm [15]

Answer:

317.21 (sales price)

259.53 (discount amount)

Step-by-step explanation:

First, we need to divide.

576.75/100=5.7675 (note that I will be rounding at the end)

5.7675 x 55 (100-45) = 317.2125

Rounds to: 317.21

Now, we need to find the discount amount.

576.75

-317.21

=259.53

6 0

3 years ago