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andrew-mc [135]
3 years ago
5

A line has a slope of -8 and includes the points (-10, 0) and (-9, z). What is the value of Z?

Mathematics
2 answers:
Evgesh-ka [11]3 years ago
6 0

Answer:

Step-by-step explanation:

Let L be the given line, then, with a slope of -8

L :  y = -8x + b

where b is to be determined from the included point A(-10,0).

Substitute point A in L to get

0 = -8 (-10) + b

solve to get

b = -80

therefore

L : y = -8x -80

Now substitute B(-9,z) in L

z = -8(-9) - 80 = -8

Shalnov [3]3 years ago
5 0

Answer:

z = -8

Step-by-step explanation:

Given coordinate points are:

(-10 , 0) = (x1 , y1)

(-9 , z) = (x2 , y2)

slope ( m) = y2-y1/x2-x1

-8 = z - 0/-9 - (-10)

-8 = z/-9 + 10

-8 = z/1

-8*1 = z

-8 = z

therefore the value of z is -8.

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3 0
3 years ago
João emprestou R$ 1000,00 a seu amigo José. Para que José conseguisse o empréstimo com o amigo, foram definidas as seguintes con
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Answer:

La opción correcta es;

d) R $ 1.200,00

Step-by-step explanation:

El monto que Joao prestó a José = R $ 1.000,00

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La cantidad que José tiene que pagarle a Joao después de 6 meses viene dada por la siguiente fórmula de interés simple;

A = P · (1 + r · t)

A = La cantidad que José tiene que pagarle a Joao después de 6 meses

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t = La duración del préstamo = 6 meses

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El monto que José debe pagar a Joao después de 6 meses = R $ 1.200,00

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Answer:

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Step-by-step explanation:

Hi there!

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