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3 years ago

15

he perimeter of a rectangle is 48 m. If the width were doubled and the length were increased by 24 m, the perimeter would be 112

m. What are the length and width of the rectangle?

1 answer:

ratelena [41]3 years ago

8 0

I believe its 36 but im not sure

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Please help with this

snow_lady [41]

Answer:

B. $- \frac{9}{8}$

Step-by-step explanation:

$\huge\frac{ - 2 {a}^{ - 3} {b}^{2} }{a} \\ \\ \huge = \frac{ - 2 {b}^{2} }{a \times{a}^{ 3} } \\ \\ \huge = \frac{ - 2 {b}^{2} }{{a}^{ 4} } \\ \\ \huge = \frac{ - 2 \times {3}^{2} }{ {( - 2)}^{4} } \\ \\ \huge= \frac{ - 2 \times 9}{16} \\ \\ \huge \red{= - \frac{9}{8} }$

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3 years ago

Give the coordinates of the focus and the equation of the directrix with the equation

Andrews [41]

Well from what i see this equation isn't a point at all, however it does start at (0,0)

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3 years ago

Use radical notation to rewrite each expression and simplify<br> 9 3/2

scoundrel [369]

Answer:

$9^{\frac{3}{2}}=\sqrt{9^3}=27$

Step-by-step explanation:

The fractional exponent m/n is often translated to radical form as ...

$x^{\frac{m}{n}}=\sqrt[n]{x^m}$

In this case, I find it easier to evaluate as ...

$x^{\frac{m}{n}}=(\sqrt[n]{x})^m=\boxed{(\sqrt{9})^3=3^3=27}$

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3 years ago

Rhonda can travel 45 miles in 3 hours while on her skateboard. at this rate, how many hours does it take to travel 1 mile

Rasek [7]

The question is relating Rhonda's distance travelled and time taken

If 45 miles = 3 hours

Then, 1 mile = 3/45 hours

$=\frac{1}{15}$

Therefore, it will take Rhonda 1/15 hours to travel 1 mile.

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1 year ago

If you travel 550 miles in 8 hours, what is your unit rate?

Rama09 [41]

Answer:

68.785 miles per hour

Step-by-step explanation:

make one of the numbers 0 and divide the other one by that number

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3 years ago

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