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3 years ago

The perimeter of a rectangle is 162 ft. The ratio of the length to the width is 5:4. Find the length of the rectangle.

Mathematics

2 answers:

Fudgin [204]3 years ago

6 0

Answer:

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aksik [14]3 years ago

3 0

Answer:D

90ft

Step-by-step explanation:

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The upper quartile of a set of data is represented by which of the following?

Natali [406]

Answer:

The mode of the upper quarter of the data.

Step-by-step explanation:

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3 years ago

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Find the area of the figure below. * 8 ft. 12 ft. 5 ft. 15 ft.

Elanso [62]

Answer

131ft^2

Step-by-step explanation:

I find area by basically taking the figure and making it into two figures and solving the area for the two then adding them up.

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4 years ago

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X f(x) -2 -1/200 -1 -1/20 0 -1/2 1 -5 2 -50

Hitman42 [59]

9514 1404 393

Answer:

f(x) = -1/2·10^x

Step-by-step explanation:

The y-intercept is -1/2.

The common ratio is (-1/20)/(-1/200) = 10, so the exponential function can be written as ...

f(x) = -1/2·10^x

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3 years ago

Which of the following are solutions to the equation below?

sladkih [1.3K]

Answer:

$\mathrm{The\:solutions\:to\:the\:quadratic\:equation\:are:}$

$x=3,\:x=-\frac{1}{2}$

Step-by-step explanation:

considering the equation

$2x^2\:-\:4x\:-\:3\:=\:x$

solving

$2x^2\:-\:4x\:-\:3\:=\:x$

$2x^2-4x-3-x=x-x$

$2x^2-5x-3=0$

$\mathrm{For\:a\:quadratic\:equation\:of\:the\:form\:}ax^2+bx+c=0\mathrm{\:the\:solutions\:are\:}$

$x_{1,\:2}=\frac{-b\pm \sqrt{b^2-4ac}}{2a}$

$\mathrm{For\:}\quad a=2,\:b=-5,\:c=-3:\quad x_{1,\:2}=\frac{-\left(-5\right)\pm \sqrt{\left(-5\right)^2-4\cdot \:2\left(-3\right)}}{2\cdot \:2}$

solving

$x=\frac{-\left(-5\right)+\sqrt{\left(-5\right)^2-4\cdot \:2\left(-3\right)}}{2\cdot \:2}$

$x=\frac{5+\sqrt{\left(-5\right)^2+4\cdot \:2\cdot \:3}}{2\cdot \:2}$

$x=\frac{5+\sqrt{49}}{2\cdot \:2}$

$x=\frac{5+7}{4}$

$x=3$

also solving

$x=\frac{-\left(-5\right)-\sqrt{\left(-5\right)^2-4\cdot \:2\left(-3\right)}}{2\cdot \:2}$

$x=\frac{5-\sqrt{\left(-5\right)^2+4\cdot \:2\cdot \:3}}{2\cdot \:2}$

$x=\frac{5-\sqrt{49}}{4}$

$x=-\frac{2}{4}$

$x=-\frac{1}{2}$

Therefore,

$\mathrm{The\:solutions\:to\:the\:quadratic\:equation\:are:}$

$x=3,\:x=-\frac{1}{2}$

7 0

3 years ago

HELP!!!!!

choli [55]

Answer:

x = 64 m

Step-by-step explanation:

The scale is proportional to the actual:

(6 m)/(3/4 cm) = x/(8 cm)

Multiplying by 8 cm, we get ...

x = (8 cm)·(6 m)/(3/4 cm)

x = 64 m . . . . the width of the actual wall

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3 years ago

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