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3 years ago

If BX/XC = AB/AC, then AC/AB = BX/XC. True False

Mathematics

2 answers:

Papessa [141]3 years ago

3 0

False. I hope this helps.

HACTEHA [7]3 years ago

3 0

Answer:

False

Step-by-step explanation:

We are given the relation $\frac{BX}{XC}=\frac{AB}{AC}$ .

We take the reciprocal of the given relation,

i.e. $\frac{BX}{XC}=\frac{AB}{AC}$

i.e. $\frac{XC}{BX}=\frac{AC}{AB}$ .

So, we have that $\frac{BX}{XC}$ ≠ i.e. $\frac{AC}{AB}$ .

Hence, the conclusion is wrong.

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PLEASEEE HELP MEEEE<br><br>NO LINKSSS

Artemon [7]

Answer:

$\huge\boxed{(2,\ 3);\ (-1,\ 6)}$

Step-by-step explanation:

$f(x)=x^2-2x+3\to y=x^2-2x+3\\f(x)=-x+5\to y=-x+5\\\\\left\{\begin{array}{ccc}y=x^2-2x+3&(1)\\y=-x+5&(2)\end{array}\right$

substitute (1) to (2):

$x^2-2x+3=-x+5$ add x to both sides

$x^2-2x+x+3=-x+x+5$

$x^2-x+3=5$ subtract 5 from both sides

$x^2-x+3-5=5-5$

$x^2-x-2=0\\\\x^2+x-2x-2=0\\\\x(x+1)-2(x+1)=0\\\\(x+1)(x-2)=0\iff x+1=0\ \vee\ x-2=0\\\\\boxed{x=-1\ \vee\ x=2}$

substitute the values of x to (2):

$x=-1\\\\y=-(-1)+5=1+5=6\\\\\huge\boxed{(-1,\ 6)}\\\\x=2\\\\y=-2+5=3\\\\\huge\boxed{(2,\ 3)}$

3 0

3 years ago

Solve.

baherus [9]

The correct answer is: [C]: " 5 " .
__________________________________________________________
→ " a = 5 " .
__________________________________________________________
Explanation:
__________________________________________________________

Given: " a + 1 <span>− 2 = 4 " ; Solve for "a" ;

4 + 2 = 6 ;

6 </span>− 1 = 5 ; → a = 5 ;

To check our work:

5 + 1 − 2 = ? 4 ?? ;

5 + 1 = 6 ;

6 − 2 = 4. Yes!

So the answer is: [C]: " 5 ".
_________________________________________________________
→ " a = 5 " .
_________________________________________________________

4 0

3 years ago

Is having a multiplication sign outside the parentheses the same as not?

katrin2010 [14]

I believe it's the same

8 0

3 years ago

Read 2 more answers

Six notebooks cost $8.34. How much per notebook?

Setler79 [48]

6n=$8.34, 8.34/6= 1.39 N=1.39

5 0