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german
3 years ago
5

Is 6x+21y a equivalent expression

Mathematics
1 answer:
Viefleur [7K]3 years ago
3 0
I think it Is because 6x+21y=27y so that’s the answer
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Explain why the square root of a number is defined to be equal to that number to the 1/2 power<br>​
denis23 [38]

Answer:

Because square root is essentially the same thing as the power to a half

sqrt(x) is the same as (x)^1/2

4 0
3 years ago
Expand a logarithmic expression
ivanzaharov [21]

The logarithmic expression is

log (\sqrt{z^5}/(x^3y))

To expand the expression we have to use some properties of logarithm.

We know that log(m/n) = log (m) - log(n)

By using this property we can write,

log(\sqrt{z^5}) - log(x^3y)

Square root means to the power 1/2, so for \sqrt{z^5}, we can write z^(5/2).

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So we will use this property to log(x^3y)

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Now we have to use another property of logarithm.

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By using this property we can write,

(5/2)log(z) - 3log(x) - log(y)

This is the required aswer here.

8 0
4 years ago
Read 2 more answers
If P = (3, 1) and Q = (-3, -7), find The distance PO​
Monica [59]

Answer:

10 units

Step-by-step explanation:

Given data

P = (3, 1) and Q = (-3, -7)

x1=3

y1=1

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The expression for the distance between two coordinate is

d=√((x_2-x_1)²+(y_2-y_1)²)

Substitute

d=√((-3-3)²+(-7-1)²)

d=√((-6)²+(-8)²)

d=√36+64

d=√100

d=10 units

Hence the distance is 10 units

7 0
3 years ago
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aleksklad [387]
Try subtracting first there were 10 then four were sold I don't know what happens after but thats what I know
5 0
3 years ago
27x+3=6 what does x equal
Digiron [165]

Answer:

1/9

Step-by-step explanation:

27x+3 = 6

-3 -3

27x = 3

/27 /27

× = 3/27 = 1/9

8 0
3 years ago
Read 2 more answers
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