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scoundrel [369]
3 years ago
11

Order of operations with negative numbers!

Mathematics
1 answer:
denis-greek [22]3 years ago
7 0
Please excuse my dear aunt Sally. Parenthesis, exponents, multiplication, division, addition, subtraction.
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Is (-2,-3) a solution of the graphed system of inequalities?
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No. A solution is any co ordinated that lies in the blank space on the graph. (-2,-3) is in the blue shades section so it is not a solution.
4 0
3 years ago
HELP ASAP PLEASE!!!!!
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The rule for inscribed angles and their corresponding arcs is that the measure of the angle is one-half that of the arc. Therefore, all we have to do is divide 68/2, which gets us an answer of D. 34.

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An angle is 6 more than five times its supplement. Find the measure of the largest angle.
Julli [10]
Supplementary angles add up to 180°


Angle y is the large angle: y= 5x+6

180= x+y
180= (5x+6) + x
180=6x+6
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4 0
3 years ago
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Evaluate the series 4 – 2 + 1 – 0.5 + 0.25 to S10. Round to the nearest hundredth.
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The initial term of this geometric series is 4, and the common ratio is -1/2. The sum is given by

S_{n}=a_{1}\dfrac{r^{n}-1}{r-1}\\\\S_{10}=4\cdot \dfrac{(-\frac{1}{2})^{10}-1}{-\frac{1}{2}-1}=4\cdot \dfrac{(\frac{1}{1024}-1)}{(-\frac{3}{2})}\\\\=\dfrac{8}{3}\cdot \dfrac{1023}{1024}=\dfrac{341}{128}

The sum is approximately 2.66.
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3 years ago
There are a few ways to increase the rate of a reaction. When the amount of a substance in a given volume is increased, this is
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Both of these variables represent a common measure used in chemistry.

The amount of material/volume is the material’s concentration.

The rate is the reaction is increase by altering the concentration.
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3 years ago
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