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Igoryamba
3 years ago
14

Cube of the number -13/15

Mathematics
2 answers:
Ivan3 years ago
7 0

Answer:

-\frac{2197}{3375}\\\mathrm{Decimal:\quad }\:-0.65096

Step-by-step explanation:

-\left(\frac{13}{15}\right)^3\\\mathrm{Apply\:exponent\:rule}:\quad \left(\frac{a}{b}\right)^c=\frac{a^c}{b^c}\\\left(\frac{13}{15}\right)^3=\frac{13^3}{15^3}\\=-\frac{13^3}{15^3}\\13^3=2197\\=-\frac{2197}{15^3}\\15^3=3375\\=-\frac{2197}{3375}

RUDIKE [14]3 years ago
3 0

Answer:

=  \frac{ - 2197}{3375}

Step-by-step explanation:

cube =  {x}^{3}  \\  (\frac{ - 13}{15})  ^{3}  \\  \frac{ - 13}{15}  \times  \frac{ - 13}{15}  \times  \frac{ - 13}{15}  \\ \\   =   \frac{ - 2197}{3375}

hope this helps

brainliest appreciated

good luck! have a nice day!

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astra-53 [7]

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Step-by-step explanation:

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8 0
3 years ago
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<h3><u>Solution</u></h3>

<u>Given </u><u>:</u><u>-</u>

  • Perimeter of rectangle = 72 cm
  • The length is 3 more than twice the width.

<u>F</u><u>i</u><u>n</u><u>d</u><u> </u><u>:</u><u>-</u>

  • Dimensions of rectangle
<h3 /><h3><u>Explantion</u></h3>

<u>Using </u><u>Formula</u>

\boxed{\underline{\tt{\red{\:(perimeter_{rectang}\:=\:2\times (Length+Width)}}}}

<u>Let,</u>

  • Length of Rectangle = x cm
  • Breadth of Rectangle = y cm

<u>According</u><u> to</u><u> question</u><u>,</u>

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==> x + y = 72/2

==> x + y = 36_________________(1)

<u>Again,</u>

==> x = 2y + 3

==> x - 2y = 3__________________(2)

<u>Subtract</u><u> </u><u>equ(</u><u>1</u><u>)</u><u> </u><u>&</u><u> </u><u>equ(</u><u>2</u><u>)</u>

==> y + 2y = 36 - 3

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<u>keep </u><u>in </u><u>equ(</u><u>1</u><u>)</u>

==> x - 2×11 = 3

==> x = 3 + 22

==> x = 25

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