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kramer
3 years ago
5

If AB= 2x+1 and BC=5x-14 Find AC

Mathematics
1 answer:
zloy xaker [14]3 years ago
3 0
A=(2x+1)/B
C=(5x-14)/B

AC=(2x+1)/B * (5x-14)/B
AC=(10x² - 23x - 14)/BE
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The slope of a line passing through H (-2, 5) is -3/4. Which ordered pair represents a point on this line?
oksano4ka [1.4K]
Answer:
(6,-1)

Explanation:
The slope of the line can be calculated using the following formula:
slope = \frac{y2-y1}{x2-x1}

We are given that:
slope = -0.75
point (x1,y1) is (-2,5)

We will use each of the given points to calculate the corresponding slope, then compare the calculated slope with the given one.

For point (6,-1):
slope = \frac{-1-5}{6--2} = -0.75 ........> accepted choice

For point (2,8):
slope = \frac{8-5}{2--2} = 0.75 ........> rejected choice

For point (-5,1):
slope = \frac{1-5}{-5--2} = 4/3 ........> rejected choice

For point (1,1):
slope = \frac{1-5}{1--2} = -4/3 ........> rejected choice

Therefore, the first option is the only correct one.

Hope this helps :)
5 0
2 years ago
Simplity to create an equivalent expression<br> 2 ( - 14+ r ) -(-3 - 5)
vovikov84 [41]

Answer:

2r+25

Step-by-step explanation

8 0
2 years ago
Simultaneous Equations <br> 2x+4y=22 <br> 2x+2y=15
Aleks04 [339]

Answer:

x = 4

y = \frac{7}{2}

Step-by-step explanation:

Ummmm

I'm not sure if this is corrrect but this is what I got

So first you solve 2x+4y=22 to find x

and you get x = -2y+11

Then you have to subtitute -2y+11 for x in 2x+2y=15

which you then get y= \frac{7}{2}

After you have to subttitute y= \frac{7}{2}  for y in x = -2y+11

which you get as x=4

Finally you get the answer as:

x = 4

y = \frac{7}{2}

5 0
3 years ago
11 Points Math Please help fast!!!
Vesnalui [34]

Answer:

do you still need the answer

Step-by-step explanation:

8 0
2 years ago
In functions, what does (x+2)(x-4) equate to? ​
dimaraw [331]

Answer:

f(x) = x^2 -2x -8

Step-by-step explanation:

(x+2)(x-4)

FOIL

first: x*x = x^2

outer: -4x

inner: 2x

last: 2*-4x = -8

Add together

x^2 +2x-4x-8

x^2 -2x -8

This is a parabola

6 0
3 years ago
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