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alexdok [17]
3 years ago
8

Round 0.142 to the nearest tenth

Mathematics
2 answers:
diamong [38]3 years ago
6 0
The 2 is irrelevant, the 4 determines whether you round up or down. since the four is less than 5 you round down. ( if the number to the right is 5 or greater you round up, if it is less than 5 you round down
0.142 = 0.100 = 0.1
hjlf3 years ago
5 0
If the number you are rounding is followed by 5, 6, 7, 8, or 9, round the number up (+1).


If the number you are rounding is followed by 0, 1, 2, 3, or 4, round the number down (no change).

0.142 ≈ 0.1
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The length of a rectangle is 8 inches more than three times the width. the perimeter is 88 inches. find the length and width.
Sav [38]
We can say L as length and W as the width 

L= 3w + 8 

The formula for perimeter is 2L + 2W = P. We can substitute L in as "3w+8" to make the equation... 

2(3w+8)+2w=88        Now, we can simplify by distributing the 2 to each term
6w+16+2w=88
8w+16=88               Then subtract 16 from each side..
8w=72
w=9

So the width is 9, so we can substitue that into the previous equation, L = 3w+8. 

L=3(9)+8
L=27+8
L=35, W=9



5 0
2 years ago
What is the value of (f-g)(7)?<br>f(x)=2+x;g(x)=x^2+5<br>(f-g)(7)=[1]​
Sav [38]

Answer:

Alright so on this type of problem you just perform the operation they ask for, which in this case is subtraction.  

Your first step will be to set up the problem:

f(x) - g(x)

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(2x + 1) - (x2 - 7)

The easiest way to do the subtraction problems is to distribute your negative into your second set of parenthesis, so your expression would become:

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Then combine your like terms:

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Lastly put your expression in standard form (highest exponent to lowest)

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Hope this helped!

Step-by-step explanation:

8 0
3 years ago
Identify the expression equivalent to 2x + 8 by substituting x = 7 and x = 5.
Nat2105 [25]

Answer:

the answer is C ;P

Step-by-step explanation:

4 0
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lyudmila [28]
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2 years ago
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