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Lynna [10]
3 years ago
13

Solve for x. Enter the solutions from least to greatest. 2x^2– 5 = 13

Mathematics
1 answer:
frosja888 [35]3 years ago
5 0

Answer:

x1 = -3 x2 = 3

Step-by-step explanation:

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given the points a (-1,2) and (7,14), find the coordinates of the point p on directed line segment ab that partitions ab in the
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Check the picture below.

\bf \left. \qquad  \right.\textit{internal division of a line segment}
\\\\\\
a(-1,2)\qquad b(7,14)\qquad
\qquad 1:3
\\\\\\
\cfrac{aP}{Pb} = \cfrac{1}{3}\implies \cfrac{a}{b} = \cfrac{1}{3}\implies 3a=1b\implies 3(-1,2)=1(7,14)
\\\\
-------------------------------\\\\
{ P=\left(\cfrac{\textit{sum of "x" values}}{r1+r2}\quad ,\quad \cfrac{\textit{sum of "y" values}}{r1+r2}\right)}

\bf -------------------------------\\\\
P=\left(\cfrac{(3\cdot -1)+(1\cdot 7)}{1+3}\quad ,\quad \cfrac{(3\cdot 2)+(1\cdot 14)}{1+3}\right)
\\\\\\
P=\left( \cfrac{-3+7}{4}~,~\cfrac{6+14}{4} \right)

3 0
3 years ago
How many sides does a polygon have whose total number of diagonals is 20?​
Bond [772]

Answer:

there would be <u>8</u><u> </u><u>sides</u> if there are 20 diagonals

6 0
3 years ago
Lucia earns $150 each week. She saves 12% of her earnings.
tatiyna
$18 i think............
5 0
2 years ago
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2350 million in standard form
topjm [15]

Answer:

in this problem we have

2,350 million

Remember that

1 million=1,000,000

so

2,350 million=2,350*1,000,000=2,350,000,000

convert to standard form

2,350,000,000=2.35*10^{9}

therefore

the answer is

2.35*10^{9}

Step-by-step explanation:

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Answer:

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Step-by-step explanation:

450/12 =37.5

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3 years ago
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