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3 years ago

Write an equation for a line with a slope of (-2) and the point (5,9)

Mathematics

1 answer:

erastovalidia [21]3 years ago

5 0

Answer:

2x+y-19=0

Step-by-step explanation:

Slope = -2

The line passes through the points (5,9)

The equation of the line is

y-9 = -2(x-5) (Gradient and 1 point form)

y-9 = -2x+10

2x+y-19 = 0

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If f =28 when a = 7 find f when a is 10 (direct proportion)

QveST [7]

Answer:

f=40

Step-by-step explanation:

f=28, a=7

$f \infty a \\ f = ka \\28 = k(7) \\ 28 = 7k \\ \frac{28}{7} = \frac{7k}{7} \\ 4 = k \\ k = 4 \\ f = 4a \\ a = 10 \\ f = 4(10) \\ f = 40$

Hope that this is helpful.

Have a nice day.

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3 years ago

Read 2 more answers

Help me please I done understand

KonstantinChe [14]

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3 years ago

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Marizza181 [45]

Answer:

XW = 4 units

Step-by-step explanation:

Given tanf° = $\frac{2}{1}$ , then

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2XW = 8 ( divide both sides by 2 )

XW = 4

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4 years ago

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kirill [66]

Answer:

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Step-by-step explanation:

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3 years ago

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