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gladu [14]
3 years ago
15

What is -2-(-7) Plsss explain

Mathematics
2 answers:
MrMuchimi3 years ago
8 0

Answer:

14 I think I'm. it completely sure

bulgar [2K]3 years ago
5 0

Answer:

5

Step-by-step explanation:

you keep the sign of the first number

change the minus sign to addition

and the 7 to a positive

-2 +7

is the same as 7 - 2 if you switch the term

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In a class there are 15 boys and 15 girls 5/6 of the children have brown hair if someone is chosen at random what is the probabi
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Probability someone chosen at random will not have brown hair = 1/6

<h3>Probability of two variables</h3>

The number of girls = 15

The number of boys = 15

The total number of children = 15 + 15 = 30

Probability that someone chosen at random will have a brown hair, P(Brown hair) = 5/6

P(Brown hair) + P(Not Brown hair) = 1

5/6  +  P(Not brown hair) = 1

P(not brown hair) = 1 - 5/6

P(not brown hair) = 1/6

Therefore, if someone is chosen at random, probability that they will not have brown hair = 1/6

Learn more on probability here: brainly.com/question/27899440

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2 years ago
What is the value of k? 2k+9=7−3k
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Answer:

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Step-by-step explanation:

2k+9=7-3k

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3 years ago
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What is each expression written using each base only once? (-4)^-6*(-4)^7
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answer a. -4
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If $1,000 is invested at 16% interest, compounded annually,
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Answer:

equation; P=A(1+r/n)^nt

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Step-by-step explanation:

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