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Over [174]
3 years ago
10

Find the slope (-2,-1) and (-4,-7)

Mathematics
1 answer:
Alika [10]3 years ago
3 0
\bf \begin{array}{ccccccccc}
&&x_1&&y_1&&x_2&&y_2\\
%  (a,b)
&&(~{{ -2}} &,&{{ -1}}~) 
%  (c,d)
&&(~{{ -4}} &,&{{ -7}}~)
\end{array}
\\\\\\
% slope  = m
slope = {{ m}}\implies 
\cfrac{\stackrel{rise}{{{ y_2}}-{{ y_1}}}}{\stackrel{run}{{{ x_2}}-{{ x_1}}}}\implies \cfrac{-7-(-1)}{-4-(-2)}\implies \cfrac{-7+1}{-4+2}
\\\\\\
\cfrac{-6}{-2}\implies 3
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Which is a zero of the quadratic function f(x) = 9x2 – 54x – 19?
liraira [26]

Answer: Third Choice. x= 6 1/3

Step-by-step explanation:

Given

f(x) = 9x² - 54x - 19

Completing the square

3x          -19

3x          1

Substitute back to the function

f(x) = (3x-19) (3x+1)

Simplify

x= 6 1/3 or -1/3

Hope this helps!! :)

Please let me know if you have any questions

7 0
3 years ago
Myers has 3/5 of cake. She divides the cake among 7 children. How much of the cake will each child get
vovikov84 [41]

Answer:

Step-by-step explanation:

3/5/7=3/35

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3 years ago
Is the spinner below , what is the probability of lading on 2 ? Help me !!!!
-BARSIC- [3]

Answer:

c

Step-by-step explanation:

1/6. theres only one 2, and theres 6 numbers total.

3 0
3 years ago
.... someone pls help me !!! pleaseee
Archy [21]

Answer:

m=4 is the correct answer

6 0
2 years ago
Read 2 more answers
Un paracaidista que pesa 70 N es lanzado de un avión. halla su masa​
77julia77 [94]

Answer:

<em>La masa del paracaidista es 7.14 Kg</em>

Step-by-step explanation:

<u>Peso y Masa</u>

La masa de un objeto es una medida de la cantidad de material que el objeto posee. Sus unidades más comunes son el Kg, gr, lb, Ton.

El peso de un objeto de masa m es la fuerza con la cual la Tierra atrae al objeto a través de la aceleración de gravedad g. Sus unidades son iguales a las de cualquier fuerza, es decir, Nw, Kgf, Dina. Su fórmula es:

P=m.g

Si tenemos el peso P=70 N, podemos calcular la masa, despejándola de la fórmula:

\displaystyle m=\frac{P}{g}

Sustituyendo los valores:

\displaystyle m=\frac{70}{9.8}=7.14\ Kg

La masa del paracaidista es 7.14 Kg

8 0
3 years ago
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