3 years ago

The length of a rectangular courtyard can be represented by (4x +3) and the width by (3x– 7). What is

Mathematics

1 answer:

love history [14]3 years ago

4 0

The area is 12x^2-19x-21

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2 years ago

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Write the equation in standard form using integers.

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<h2><u><em>4x + 5y = -30 hope this helps</em></u></h2>

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2 years ago

The velocity of a particle moving back and forth on a line is vequalsStartFraction ds Over dt EndFraction equals6 sine (2 t )Sta

max2010maxim [7]

Answer:

s = 6 m

Step-by-step explanation:

The value of the velocity v is given as:

$v = \frac{ds}{dt} = 6 sin(2t)$ m/s

To find s, we have to integrate and apply the initial values of s = o when t = 0:

$\frac{ds}{dt} = 6 sin(2t)\\\\\int\limits^s_0 {ds} = \int\limits^t_0 {6sin(2t)} \, dt\\\\s|^s_o = -3cos(2t)|^t_o\\\\s - 0 = -3cos(2t) -(-3cos(0))\\\\s = -3cos(2t) + 3(1)\\\\s = -3cos(2t) + 3$

When t = π/2, s will be:

s = -3cos(2 * π/2) + 3

s = -3cos(π) + 3

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3 years ago

Which letter correctly identifies the Isthmus of Panama? A B C D The Panama Canal

Setler79 [48]

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Step-by-step explanation:

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3 years ago

X - 2y = -3<br> 2x + y = -1

bezimeni [28]

Answer:

y = 1

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Step-by-step explanation:

x - 2y = -3, then x = 2y - 3

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substitute for x:

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5y = 5

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x = 2 - 3 = -1

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2 years ago

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