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fiasKO [112]
3 years ago
13

Given the following formula for V=4r. How would you solve for "r"?

Mathematics
1 answer:
Artyom0805 [142]3 years ago
7 0
R = v/4
because:
v = 4r
v/4 = 4r/4 the fours cancel out and you are left with r
therefore v/4 = r or r = v/4
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What’s the next step to solve the equation -2(n+3)= 9
elena-s [515]

Answer:

-15/2

Step-by-step explanation:

The next step would be to distribute the negative two through the parenthesis,

-2n-6=9

then you add the six, -2n= 15

then you divide by 15 by negative 2 and get -15/2

8 0
3 years ago
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The observations of 124.53, 124.55, 142.51, and 124.52 are obtained when taping the length of a line. What should the observer c
mylen [45]

Answer: the observer should consider to eliminate or to retake the third measure.

Explanation:

The four measures taken are 124.53, 124.55, 142.51 and 124.52.

As it can be easily seen, the third measure is much different from the other three. This means that something went wrong during the observation: it can be either the measure taken wrong or that the number was written wrong (if you switch the 2 and the 4 you get a number similar to the other ones).

If the third measure is not considered, an estimate of the mean would place it around 124.5, while if the outlier (the detatched number) is considered an estimate of the mean would increase to about 129.

Therefore, in order to obtain a more reliable mean, the observer should consider to eliminate or to retake the third measure.

6 0
3 years ago
3 cans store 9 tennis balls. Write an equation to represent the realationship
LUCKY_DIMON [66]

Answer:

y = 3x.

Step-by-step explanation:

To find out the equation, put it this way. For every 3 cans, there are 9 tennis balls. So if you put it as 9/3, that means that for every can, there are 3 tennis balls. y = 3x. The x is the variable for how many cans there are. If there are 5 cans, the five would multiply by 3 and then thats your answer.

I hope I helped.

Brainliest would be appreciated.

Have a nice day.

4 0
3 years ago
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Plz help I don't want to be awake the whole night
kolezko [41]

Answer:

Therefore

75\div 5 - [(9-7)\times 3 ]\times 2 = 3

Step-by-step explanation:

To Find:

Value of expression

75 ÷ 5 - [( 9 - 7 ) × 3 ] × 2

Solution:

PEDMAS rule

It explains the order of operations to solve an expression.

According to Pedmas rule, if an expression contains brackets ((), {}, []) we have to first solve or simplify the bracket followed by of (powers and roots etc.),

then division, multiplication, addition and subtraction from left to right.

P - parenthesis

E- exponent

D/M - Div or Multiply which ever comes first

A/S - Add or Sub which ever comes first.

So first we will solve the Parenthesis we get

Step 1. Parenthesis  operation

75 ÷ 5 - [( 2 ) × 3 ] × 2

Step 2. Parenthesis operation

75\div 5 - [(2)\times 3 ]\times 2

Step 3. Division

15 - [6]\times 2

Step 4. Multiplication

15 - 12

Step 5. Subtraction

3

Therefore

75\div 5 - [(9-7)\times 3 ]\times 2 = 3

7 0
3 years ago
Which of these numbers are composite<br><br> 51, 53, 57, 59
Oduvanchick [21]

Answer:

57

Step-by-step explanation:

57 is a composite number

6 0
3 years ago
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