3 years ago

Math Help Quick!!!! Plzzzzzzzz!!!!!

Mathematics

1 answer:

KatRina [158]3 years ago

4 0

Answer:(5,-10)

Step-by-step explanation:

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Find the equation of the line that passes through points A and B. y X A (4, 7) B (2, 3)

g100num [7]

Answer:

y = 2x - 1.

Step-by-step explanation:

The slope = (7-3)/(4-2)

= 4/2

= 2.

y - y1 = m(x - x1)

Here m = 2 , x1 = 2 and y1 = 3. So we have:

y - 3 = 2(x - 2)

y = 2x - 4 + 3

y = 2x - 1.

We have used the point (2, 3) to find the equation but we could have used (4, 7). We would have got the same answer.

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2 years ago

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What is the value of h(3) multiplied by h(7) P.S. I will give brainliest to the best answer

Eddi Din [679]

Answer:

Step-by-step explanation:

Because h(3) times h(7) is equal to 21.

Hope it helps!

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2 years ago

Your friend has owned a dog for 35 weeks. This is five weeks less than twice as long as he has owned a cat. How long has your fr

pashok25 [27]

Answer:

20 weeks

Step-by-step explanation:

35+5=40

40/2=20

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2 years ago

Sue charges $15 per hour for the first hour of babysitting and $10 for each additional hour, with each fraction of an hour count

Iteru [2.4K]

Answer:

12:06

Step-by-step explanation:

Gwendolyn Logan is not happy with you cheating.

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3 years ago

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The formula for wind chill C (in degrees Fahrenheit) is given by C = 35.74 + 0.6215T - 35.75v^0.16 + 0.4275Tv^0.16 where v is th

Diano4ka-milaya [45]

Answer:

dC = 2.44

Relative error = 19%

Step-by-step explanation:

$C = 35.74 + 0.6215*T - 35.75*v^(0.16) + 0.4275*T*v^(0.16)$

Δv = 3 ; ΔT = 1 , v = 23, T = 8

Use differential Calculus

$dC = Cv.dv + Ct.dt$

$Cv = dC/dv = -5.72*v^(-0.84) + 0.0684*T*v^(-0.84)\\Ct = dC/dT = 0.6215 + 0.4275*v^(0.16)\\dC = modulus (Cv.dv) + modulus (CT.dT)\\dC = (-5.72*v^(-0.84) + 0.0684*T*v^(-0.84))* 3 + (0.6215 + 0.4275*v^(0.16))*1\\dC = 2.44$

Relative Error

dC / C @(T = 8, v=23) * 100 = 19 %

8 0

2 years ago