Question 1:
<h3>Answer: The number does <u>not</u> change</h3>
Removing the zero from 0.76 leads to .76 which is the same as before. Both lead to 
in scientific notation.
Personally I prefer the zero up front to make the decimal point stand out easier. Of course it's just a preference, so its up to you to decide which you prefer.
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Question 2:
<h3>Answer: Yes the number changes</h3>
Taking the zero out of 10.25 leads to 1.25 which is definitely a different number (and smaller). Therefore, this zero is a significant digit compared to before.
-6(2x - 4) = -6*(2x) -6*(-4) = -12x + 24
-(12x - 6) + 18 = -12x + 6 + 18 = -12x + 24
-3(4x - 3) + 15 = -3*(4x) -3*(-3) + 15 = -12x + 9 + 24 = -12x + 24
-4(3x + 6)
= -4*(3x) -4*(6) = -12x -24
All the expressions gave the same answer as -12x + 24, except for the last expression.
So, -4(3x + 6)
is not equivalent to the others.
Hello!
First:
write an equation.
5x + (7x+8) + (7x+2) = 143
now combine like terms
19x + 10 =143
now subtract 10 from both sides
19x = 133
divide 19 on both sides.
x = 7.
Are you done here? Nope, we need to find out what each side is, so lets plug in the number 7 for x.
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For the side 5(x)
5(7) = 35
This side is 35m
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For the side 7x + 2
7(7) + 2
49 + 2
51
This side is 51m
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For the side 7x + 8
7(7) + 8
49 + 8
57
This side is 57m.
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I hope this helps,
Have a great day!
513/9 = 57 rows
Can the rows be divided into a number of equal sections? No
Explain how you found the answer. There aren't any lower number of multiples to break down 57 evenly.
Please help quick
