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SSSSS [86.1K]
3 years ago
10

Do a + a + a + a and 4a a have the same value for any value of ? Explain how you know

Mathematics
1 answer:
stepladder [879]3 years ago
4 0

Answer:

No

Step-by-step explanation:

4a=a*a*a*a

4a is 4 times the variable <em>a</em>, not the variable <em>a</em> added to itself 4 times.

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It's almost 50% of American celebrate the new year at home, about how many people will be at home?
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Answer:

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Step-by-step explanation:

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3 years ago
Evaluate the expression - |7-9|
timama [110]

Answer: -2

Step-by-step explanation: As our first step, we simplify inside the absolute value. 7 - 9 is -2 so we have -|-2|.

A common mistake at this point in the problem is to change the minus a negative to plus a positive but don't fall into this trap.

We must ignore the negative outside the absolute value until our very last step in this problem.

So we take the absolute value of -2 which is 2 and we have -(2) or -2.

Notice that I used parentheses around the 2 as it comes out of the absolute value.

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Answer:

9 inch by 12 pan

Step-by-step explanation:

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3 years ago
Read 2 more answers
Ten times the sum of half of a number and 6 is 8
Ahat [919]
10\cdot\left(\dfrac{1}{2}x+6\right)=8\ \ \ \ |use\ distributive\ property\ a(b+c)=ab+ac\\\\5x+60=8\ \ \ \ |subtract\ 60\ from\ both\ sides\\\\5x=-52\ \ \ \ |divide\ both\ sides\ by\ 5\\\\\boxed{x=-10.4}
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