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mash [69]
3 years ago
6

What’s the answer to this

Mathematics
1 answer:
Zepler [3.9K]3 years ago
6 0
I’m pretty sure the formula is 4/3 • pie • radius^3 (the 3 is to the third power)
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A-2=-1 + 2a-4-1<br><br> send me the work please! (solving equations with variables on both sides)
Vladimir [108]

The value of "a" is 4

<em><u>Solution:</u></em>

<em><u>Given expression is:</u></em>

a - 2  = -1 + 2a - 4-1

The above expression involves variables and constants

A variable is a symbol that represents an unknown number

Here the variable is "a"

Constants are fixed numbers like 1, 2 etc

<em><u>From given expression:</u></em>

a - 2  = -1 + 2a - 4-1

Move the varibale "2a" from right side to left side of equation

When, 2a is moved from R.H.S to L.H.S, it becomes -2a

a -2a - 2 = -1 -4-1

Now move the constant -2 from left side to right side of equation

Similarly, when -2 is moved from L.H.S to R.H.S, it becomes +2

a-2a = -1-4-1+2

Now add the variables on left side of equation

-a = -1-4-1+2

Now add the constants on right side of equation

-a = -6+2\\\\-a = -4

Cancel the negative sign on both sides of equation

a=4

Thus the value of "a" is 4

6 0
3 years ago
To estimate the mean score μ μ of those who took the Medical College Admission Test on your campus, you will obtain the scores o
Juliette [100K]

Answer: 0.4667

Step-by-step explanation:

According to 68–95–99.7 rule , About  99.7% of all data values lies with in 3 standard deviations from population mean (\mu).

Here , margin of error = 3s , where s is standard deviation.

As per given , we have want our sample mean \overline{x} to estimate μ μ with an error of no more than 1.4 point in either direction.

If 99.7% of all samples give an \overline{x} within 1.4 , it means that

3s=1.4

Divide boths ides by 3 , we get

s=0.466666666667\approx0.4667

Hence, So \overline{x} must have 0.4667 as standard deviation so that 99.7 % 99.7% of all samples give an \overline{x} within 1.4 point of μ .

6 0
3 years ago
Write 5% as a decimal.
jolli1 [7]
You cannot do it that way.  Make sure the question you wrote is correct, because you would divide 5 by 100, not 100 by 5.  A simple way is to move the decimal point two points to the left.  5% as a decimal is 0.05.  

The answer is false if the question is written this way.  
3 0
3 years ago
If 4w - 1 = 11, then 4w = 12<br> what is the property?
KonstantinChe [14]

Answer:

Addition property of equality.

Hope this helps :)

7 0
3 years ago
. Solve.<br> 2/3 of 3/5 plese help
olasank [31]

Answer:

10/9

Step-by-step explanation:

7 0
2 years ago
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