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3 years ago

The length of a rectangle is 8 centimeters

Mathematics

1 answer:

Anestetic [448]3 years ago

5 0

Answer:

$220 \: {cm}^{2}$

Step-by-step explanation:

$Let \: x \: be \: the \: width \Rightarrow the \: length:3x - 8 \\ a. \: Polynomial: x(3x - 8) \\ b. \:Area: \:10 (3 \times 10 - 8) = 220$

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Answer:

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Step-by-step explanation:

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3 years ago

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Evaulate 3/2 +(-k) + (-2) where = -5/2

Dennis_Churaev [7]

Step-by-step explanation:

Did you mean

Evaluate 3/2 + (-k) + (-2) where k = -5/2

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3 years ago

What is the distance from point (– 1, 3) to the line 3x – 4y = 10?

natta225 [31]

Answer:

5 units

Step-by-step explanation:

The distance from a point (m, n ) to the line Ax + By + C = 0 is given by

d = $\frac{|Am+Bn+C|}{\sqrt{A^2+B^2} }$

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3x - 4y = 10 ( subtract 10 from both sides )

3x - 4y - 10 = 0

with A = 3 , B = - 4 , C = - 10

d = $\frac{|3(-1)+(-4)3-10|}{\sqrt{3^2+(-4)^2} }$

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= $\frac{|-25|}{\sqrt{25} }$

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3 years ago

Solve for x. Round to the nearest tenth, if necessary.

DENIUS [597]

Answer:

x=3.5 cm

Step-by-step explanation:

90/2 = 45 degrees

Soh Cah Toa

We have opposite and hypotenuse making sin.

Length×Sin(Angle)

5×Sin(45) = 3.53553cm

Rounded the the nearest tenth makes 3.5cm

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3 years ago

Select all that apply.

galina1969 [7]

A and C
^^^^^^^^^^^^^^^

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4 years ago

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