1/3m- 1- 1/2n when m= 21 and n = 12

1 answer:

4 0

With this one, plug in the values with the corresponding letters. 1/3m would be the same as 1/3(21) to get an answer of 7. Then 1/2(12) which is 6. Now the equation is 7-1-6 to get an answer of 0.

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Cada par de puntos determina una recta con la pendiente dada. Halla el valor de la incógnita en cada caso: a. (3,2);(4,x); m=1 b

True [87]

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a=3,b=0,c=5,d=-4/21

Step-by-step explanation:

The formule we use to get the slope is:

m = $\frac{y2-y1}{x2-x1}$

a. (3,2);(4,x); m=1

$\frac{x-2}{4-3}=1$ → x= (1)(4-3)+2 → 3

b. (b,-1);(2,-2); m=-1/2

$\frac{-2-(-1)}{2-b}=\frac{-1}{2}$ → -1= ( $\frac{-1}{2}$ )(2-b) → $\frac{-1}{\frac{-1}{2} }-2$ → 0

c. (5,d);(9,2); m=-3/4

$\frac{2-d}{9-5}=\frac{3}{4}$ → d= ( $\frac{-3}{4}$ )(9-5)-2 → 5

d. (-1/3,3/4);(h,5/6); m=7/12

$\frac{\frac{5}{6}-\frac{3}{4} }{h-\frac{-1}{3} }=\frac{7}{12}$ → $\frac{5}{6}-\frac{3}{4}$ = $\frac{7}{12}$ ( ${h-\frac{-1}{3} }$ ) → $\frac{-4}{21}$