3 years ago

A line has a slope of 1 and passes through the point (2,4). PLSSSSS HELPP :(

Mathematics

1 answer:

Mariulka [41]3 years ago

5 0

Answer:

y=x+2

Step-by-step explanation:

In this picture ( step by step )

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Find the area of a right triangle with a base of 38 cm and height of 26 cm.

Marianna [84]

Answer:

494cm2

Step-by-step explanation:

Área = (base × height)/2

Área=(38×26)/2=988/2=494cm²

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3 years ago

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Use the definition of the derivative to differentiate v=4/2 pie r^3

nata0808 [166]

I suspect 4/2 should actually be 4/3, since 4/2 = 2, while 4/3 would make V the volume of a sphere with radius r. But I'll stick with what's given:

$\displaystyle \frac{dV}{dr} = \lim_{h\to0} \frac{2\pi(r+h)^3-2\pi r^3}{h}$

$\displaystyle \frac{dV}{dr} = 2\pi \lim_{h\to0} \frac{(r^3+3r^2h+3rh^2+h^3)- r^3}{h}$

$\displaystyle \frac{dV}{dr} = 2\pi \lim_{h\to0} \frac{3r^2h+3rh^2+h^3}{h}$

$\displaystyle \frac{dV}{dr} = 2\pi \lim_{h\to0} (3r^2+3rh+h^2)$

$\displaystyle \frac{dV}{dr} = 2\pi \cdot 3r^2 = \boxed{6\pi r^2}$

In Mathematica, you can check this result via

D[4/2*Pi*r^3, r]

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3 years ago

Graph a line with a y-intercept of -3 and a slope of 43 .

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Step-by-step explanation:

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3 years ago

What value represents 144%

riadik2000 [5.3K]

Answer:

144/100=1.44

Step-by-step explanation:

it is done

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