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3 years ago

Rachel jogged along a trail that was 1/4 of a mile long. She jogged around it 8 times. How many miles did Rachel jog?

Mathematics

2 answers:

aev [14]3 years ago

4 0

Rachel jogged two miles, 1/4 x 8

bixtya [17]3 years ago

4 0

I'm pretty sure it's 2 because 8x1/4 = 2, I hope this helped

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How to do a exponent with the negative base?

tatiyna

Examples :
(-2)^3 = (-2)(-2)(-2) = - 8

(-3)^4 = (-3)(-3)(-3)(-3) = 81

(-1)^5 = (-1)(-1)(-1)(-1)(-1) = -1

** if the exponent is an even number, the answer will be positive. if the exponent is an odd number, then the answer will be negative

** but keep in mind....if the negative is not included with the base..
-(5^2) = - 25....but (-5^2) = 25

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4 years ago

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(3y^0 x^2)^6 times y^-3 zx8

timurjin [86]

Ok so some basic rules

$(x^m)(x^n)=x^{m+n}$
$(ab)^c=(a^c)(b^c)$
$(x^m)^n=x^{mn}$
$x^0=1$
$x^{-m}= \frac{1}{x^m}$

so
$[(3y^0x^2)^6][y^{-3}zx^8]$
$[(3(1)x^2)^6][y^{-3}zx^8]$
$[(3x^2)^6][y^{-3}zx^8]$
$[(3^6)((x^2)^6)][y^{-3}zx^8]$
$[(3^6)(x^{12})][y^{-3}zx^8]$
$(3^6)(x^{12})(y^{-3})(z)(x^8)$
$(3^6)(x^{12})(x^8)(y^{-3})(z)$
$(3^6)(x^{20})(\frac{1}{y^3})(z)$
$\frac{3^6x^{20}z}{y^3}$
$\frac{729x^{20}z}{y^3}$

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3 years ago

Lincoln and his children went into a bakery and where they sell cookies for $1 each and brownies for $1.75 each. Lincoln has $15

ycow [4]

Answer:

#8__+$-_($9903+39:( :)

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3 years ago

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5 t-shirts cost £38.75. <br> How much do 7 t-shirts cost?

antiseptic1488 [7]

Answer:

$54.25

Step-by-step explanation:

decide 38.75 by 5 to get what each cost then multiply by 7 to get your answer

4 0

3 years ago

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PLEASE ANSWER THIS ASAP ASAP

Alex

12 = 15 (z - 1/5)

12 = 15z - 3

+3 +3

15 = 15z

15 (÷ 15) = 15z (÷ 15)

1 = z

Hope I helped!!! :)

8 0

4 years ago