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Goshia [24]
3 years ago
11

Something added by -8 equals 20

Mathematics
2 answers:
LiRa [457]3 years ago
8 0

Answer:

28 is added by -8 equals 20

Step-by-step explanation:

The equation to calculate something added by -8 equals 20 is as follows:

x-8 = 20

x = 20+8

x = 28

28 is added by -8 equals 20

aleksandrvk [35]3 years ago
6 0

Answer:

28 + -8 = 20.

Step-by-step explanation:

ᗯᕼEᑎ ᗯE ᔕᑌᗷTᖇᗩᑕT 20 ᗩᑎᗪ -8, ᗯE GET 28.   20-8= 28.  28.

TᕼEᖇEᖴOᖇE, YOᑌᖇ ᔕOᒪᑌTIOᑎ Iᔕ 28.

ᕼOᑭE TᕼIᔕ ᕼEᒪᑭᔕ!

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What is the true solution to the logarithmic equation?<br>log2 [log2(sqrt4x)]=1​
erastova [34]

Answer:4

Step-by-step explanation:

log₂[log₂(√4x)] = 1

log₂2 =1

So we replace our 1 with log₂2

log₂[log₂(√4x)] = log₂2

log₂ on bothside will cancel each other.

We will be left with;

[log₂(√4x)] = 2

log = power of exponential

√4x = 2²

√4x = 4

Square bothside

(√4x)² = 4²

4X = 16

Divide bothside by 4

4x/4 = 16/4

x = 4

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3 years ago
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kicyunya [14]

Answer:

An average of about 450 hours; You could say something along the lines of "If the pianist who practices an average of 45 hours per week practices everyday for three months, they would play for approximately 450 hours total."

Step-by-step explanation:

We could write an equation to make it simpler to figure out, making the number of hours after three months = n, 4 = weeks in a month, 3 = the number of months, and 45 = the number of hours after a week. As an equation, it would look like:

45 * 3 * 4 = n

We know 3 *4 is 12, so the equation becomes 45 * 12 = n.

45 * 12 = 540, therefore the pianist practices an average of approximately 540 hours over a three-month period of time.

4 0
3 years ago
-3 + 5n &gt; -13 <br> i need help on this someone please help
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Answer:

n > -2

Step-by-step explanation:

5n > -10

n > -2

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Answer:

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b) The shortest side is opposite to the shortest angle. So, we can calculate it using sin 30º.

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$\frac{1}{2} =\frac{\text{Opposite side to x}}{19} $

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vovikov84 [41]

Answer:

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