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zepelin [54]
3 years ago
6

10.5 in the form a/b

Mathematics
1 answer:
Lorico [155]3 years ago
4 0
10.5 in the form of a/b = 105/10 = 21/2
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What is the cost of the following?
Savatey [412]
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6\ cans\\
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3*0,99\$=2,97\$\\\\
\textbf{3\ boxes\ of\ cereal\ cost\ 2,97\$.}\\\\
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1\ loaf\ of\ bread\ cost\ 0,45\$\\
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1\ lbs\ costs\ 0,4\$\\
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1\ box\ of\ jello\\
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5 0
4 years ago
Use factoring to solve the quadratic equation. Check by substitution or by using a graphing utility and identifying x-intercepts
MaRussiya [10]

9514 1404 393

Answer:

  x = -7, x = 9

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We presume your equation is ...

  x² -2x -63 = 0

Factors of -63 that have a sum of -2 are -9 and +7. Then the factored equation is ...

  (x -9)(x +7) = 0

Solutions make the factors zero.

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The solutions to the quadratic equation are x = -7 and x = 9.

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3 years ago
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Step-by-step explanation:

4 0
3 years ago
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Nina [5.8K]

Answer:

See below in bold.

Step-by-step explanation:

1. The 3 angles in a triangle add up to 180 degrees.

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= 180 - 80

= 100 degrees.

2.  The 4 angles in a quadrilateral add up to 360 degrees,, so

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3x + 300 = 360

3x = 360 - 300

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x = 20 degrees.

3. Exterior angle

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