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3 years ago

13

Please Help!! 100 POINTS, Write the equation of the line of best fit using the slope-intercept formula $y = mx + b$. Show all yo

ur work, including the points used to determine the slope and how the equation was determined.

1 answer:

Nady [450]3 years ago

8 0

Answer:

y= 6/5x-10

Step-by-step explanation:

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Chris buys p pairs of parts and 4 more shirts than pairs of pants.Shirts cost $18 each and pair of pants cost $25 each.What does

Flauer [41]

The entire expression represents the total cost of the pants and shirts that Chris bought.

25p + 18(p + 4) ....let me break this down for u...

p = number of pants bought
25p is telling us the pants cost $ 25 a piece
p + 4 is telling us the number of shirts bought...4 more shirts then pants
18(p + 4) is telling us that each shirt bought costs $ 18

6 0

3 years ago

If f(x) = 2x2 - x - 6 and g(x) = x2 - 4, find f(x) ÷ g(x).

Phantasy [73]

$f(x)=2x^2-x-6,\ g(x)=x^2-4\\\\f(x)\div g(x)=\dfrac{f(x)}{g(x)}=\dfrac{2x^2-x-6}{x^2-4}=\dfrac{2x^2-4x+3x-6}{x^2-2^2}\\\\=\dfrac{2x(x-2)+3(x-2)}{(x-2)(x+2)}=\dfrac{(x-2)(2x+3)}{(x-2)(x+2)}=\dfrac{2x+3}{x+2}\ for\ x\neq0\\\\Answer:\ f(x)\div g(x)=\dfrac{2x+3}{x+2}$

$Used:\ a^2-b^2=(a-b)(a+b)$

4 0

3 years ago

The Natural History Museum has a 1:60 scale model of a tyrannosaurus rex dinosaur. The length of the model is 20 centimeters. Fi

Kamila [148]

Answer:

12 meters

20cm*60 = 1200cm = 12 meters

100cm = 1m btw

4 0

4 years ago

3 (x + 1) - 2y= 0

Rina8888 [55]

$3(x+1)-2y=0\\3x+3-2y=0\\3x=2y-3\\x=\frac{2}{3}y-1\\\\y=9:\\x=\frac{2}{3}\cdot9-1=\frac{18}{3}-1=6-1=5\\\\y=16\frac{1}{2}=\frac{33}{2}:\\x=\frac{2}{3}\cdot\frac{32}{2}-1=\frac{64}{6}-1=\frac{32}{3}-\frac{3}{3}=\frac{29}{3}=9\frac{2}{3}\\\\y=24:\\x=\frac{2}{3}\cdot24-1=\frac{48}{3}-1=16-1=15\\\\X|5|\ 9\frac{2}{3}|15\\Y|9|16\frac{1}{2}|24$

8 0

3 years ago

In an electric circuit, two resistors with resistances x and y are connected in parallel. In this case, if r is the combined res

Vladimir [108]

Answer:

(D) xy/(x + y)

Step-by-step explanation:

To find r in terms of x and y

Given,

two resistors with resistances x and y are connected in parallel
r is the combined resistance of these two resistors
the reciprocal of r is equal to the sum of the reciprocals of x and y

Then,

1/r = 1/x + 1/y

1/r = (y + x)/xy

Find the reciprocal of both sides

r = xy/(x + y)

The right answer is option (D) xy/(x + y)

5 0

3 years ago