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Kay [80]
3 years ago
6

The line passing through the point (-2,5)and (1,a) is perpendicular to the line 2x-y-5=0, find the value of a​

Mathematics
1 answer:
timofeeve [1]3 years ago
8 0

Answer:

a = 7/2

Step-by-step explanation:

2x - y - 5 = 0

2x = y + 5

y = 2x - 5

m = -1/2

y - 5 = -1/2(x - (-2))

y - 5 = -1/2(x + 2)

y - 5 = -x/2 - 1

y = -x/2 + 4

a = -1/2 + 4

a = 7/2

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In mathematics the curve that graphically represents the sine function and also that function itself is called sinusoid or sinusoid. It is a curve that describes a repetitive and smooth oscillation. It can be represented as y(x) = a sin (ωx+φ) where a is the amplitude, ω is the angular velocity with ω=2πf, (ωx+φ) is the oscillation phase, and φ the initial phase.

The period T of the sin function is T=1/f, from the equation ω=2πf we can clear f and substitute in T=1/f.

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Substituting in T=1/f:

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For the example y = a sin bx, we have that a is the amplitude, b is ω and the initial phase φ = 0. So, we have that the period T of the function a sin bx is:

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3 years ago
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tamaranim1 [39]

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Step-by-step explanation:

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3 years ago
Please help me, I'm a little confused on this one.
pochemuha
The answer is D , because if you look on the graph you going to see the Answer in your face
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cricket20 [7]

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Step-by-step explanation:

i think its c

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timurjin [86]

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