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cupoosta [38]
3 years ago
13

Which best describes the solution to 4 – 7? Because –4 + (–7) is an equivalent expression, the answer is –11. Because 4 + (–7) i

s an equivalent expression, the answer is –3. Because 4 + (–7) is an equivalent expression, the answer is –11. Because –4 + (–7) is an equivalent expression, the answer is –3.
Mathematics
2 answers:
ANTONII [103]3 years ago
3 0
The answer to your question would be: Because 4 + (-7) is an equivalent expression, your answer is -3. The reason for this can be described using integers. So lets say you have $4. You owe your brother $7. Since you don't have enough to pay him, you can pay him all your money, but you still have to pay him $3 more. This means technically your balance is $-3, cause if he needs the money, the second you get it he will ask for it. Sorry if this isn't too great of an example, not sure what else I could think of. Pretty much remember when subtracting a number, you can add the negative of the number, because that is the same thing. Hope this helps. Please rate, leave a thanks, and mark a brainliest answer (Not necessarily mine). Thanks, it really helps! :D
olasank [31]3 years ago
3 0

Answer:

Step-by-step explanation:4+(-7) =-3

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Simora [160]

Answer:

1+r+r^{2}+r^{3}+.....+r^{n-1} = \frac{1-r^{n}}{1-r}

Step-by-step explanation:

Taking the succession:

1+r+r^{2}+r^{3}+.....+r^{n-1}

You can multiply and divide by 1-r without chaging the result:

\frac{1-r}{1-r} (1+r+r^{2}+r^{3}+.....+r^{n-1})

Distributing the upper part of the fraction you have:

\frac{1}{1-r} (1-r+r-r^{2}+r^{2}-r^{3}+r^{3}-r^{4}+.....+r^{n-1}-r^{n})

As can be seen all the intermediate members will be canceled by a same member with opposite sign, only (1-r^{n}) will be left so:

1+r+r^{2}+r^{3}+.....+r^{n-1} = \frac{1-r^{n}}{1-r}

5 0
3 years ago
Please help, marking brainliest for the correct answer
mr_godi [17]
These are corresponding lines, as they are opposite.

I hope this helps.
3 0
3 years ago
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Last year the 7th grade class had 350 students. This year the number decreased 36%. How many students are in this year's 7th gra
Hoochie [10]

Answer:

224

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350-36%=224. easy as that.

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3 years ago
What is the value of the expression
aleksandrvk [35]

Answer:

6

Step-by-step explanation:

2(7)-(-4)/3

(14+4)/3

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3 years ago
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mezya [45]

The given triangle is a right angle .

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Substituting the values of opposite and hypotenuse

SinA=\frac{12}{37}

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3 years ago
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