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pogonyaev
3 years ago
9

Evaluate -(a + b), given values a = -4, b = - 12.

Mathematics
2 answers:
tatuchka [14]3 years ago
4 0
The answer would be -16
stira [4]3 years ago
4 0
16 I think is the correct answer
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60 randomly chosen students from each grade level at Willow Brook school about their favorite types of reading material of those
faust18 [17]

Answer: Yes, he makes a reasonable inference.

Step-by-step explanation:

Since we have given that

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Number of chosen science students = 12

Percentage of students who chose science is given by

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= 1/5 x 100

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Since Mr. Rodriguez used the data to draw the inference that about 20% of middle school students prefer to read science fiction.

So yes, he makes a reasonable inference.

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3 0
3 years ago
Solve for c.<br><br> 3 − 7c − 20c = 7(–7c − 19) + 14c<br><br> c =
OleMash [197]

Answer:

\boxed{c = -17}

Step-by-step explanation:

=  > 3 - 7c - 20c = 7( - 7c - 19) + 14c \\  \\  =  > 3 - 27c = ( - 7c \times 7) - (7 \times 19) + 14c \\  \\  =  > 3 - 27c =  - 49c - 133 + 14c \\  \\  =  > 3 - 27c =  - 35c - 133 \\  \\  =  > 3 - 27c + 35c =  - 133 \\  \\  =  > 3  + 8c =  - 133 \\  \\  =  > 8c =  - 133 - 3 \\  \\  =  > 8c =  - 136 \\  \\  =  > c =  -  \frac{136}{8}  \\  \\  =  > c =  - 17

7 0
3 years ago
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