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exis [7]
3 years ago
12

Helpppppppppppp on number 19 20 21 22 23

Mathematics
2 answers:
madreJ [45]3 years ago
7 0
19) Q
20) D
21) C
22) C
23) C
Karolina [17]3 years ago
3 0
19.q 20.d 21.6/7 22.6/7 23.b
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A rectangular pool in your friend' s yard is 150 ft× 400 ft.
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Help! <br> Which expression is equivalent? <br> On edge
Ira Lisetskai [31]

Answer: Choice B

x^{1/8}y^{8}

======================================================

Explanation:

The two rules we use are

(a*b)^c = a^c*b^c

(a^b)^c = a^{b*c}

When applying the first rule to the expression your teacher gave you, we can say that:

\left(x^{1/4}y^{16}\right)^{1/2} = \left(x^{1/4}\right)^{1/2}*\left(y^{16}\right)^{1/2}

Then applying the second rule lets us say

\left(x^{1/4}\right)^{1/2}*\left(y^{16}\right)^{1/2} = x^{1/4*1/2}*y^{16*1/2} = x^{1/8}y^{8}

Therefore,

\left(x^{1/4}y^{16}\right)^{1/2}  = x^{1/8}y^{8}

-------------

In short, we just multiplied each exponent inside by the outer exponent 1/2.

So that explains why the exponents go from {1/4,16} to {1/8,8} for x and y in that exact order.

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3 years ago
How do you compare 36.782 or 37.762
Ber [7]

Answer:

36.782 < 37.762

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Jackson bought 3 pounds of candies for $9.75.
ElenaW [278]

Answer:

$3.25

Step-by-step explanation:

Since there are three candle, you divide 9.75 by three.

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