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larisa86 [58]
3 years ago
9

HELP ME FOR BRAINLESS Mr. Erikson plans to tile the floor of the hallway in a school, as shown in the

Mathematics
1 answer:
LenaWriter [7]3 years ago
4 0

The minimum tiles Mr. Erikson needs to buy is 150.

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I think the answer might be 45
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3 years ago
Fill in the table using this function rule <br> y=- 10x + 2
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3 years ago
Write a polynomial function of minimum degree with real coefficients whose zeros include those listed. Write the polynomial in s
sergey [27]

Answer:

y = x⁴ − 9x² − 50x − 150

Step-by-step explanation:

Complex roots come in conjugate pairs.  So if -1 + 3i is a root, then -1 − 3i is also a root.

y = (x − 5) (x + 3) (x − (-1 + 3i)) (x − (-1 − 3i))

y = (x − 5) (x + 3) (x + 1 − 3i) (x + 1 + 3i)

Distribute using FOIL (first, outer, inner, last) to get real coefficients:

y = (x − 5) (x + 3) (x² + (1 + 3i)x + (1 − 3i)x + (1 − 3i)(1 + 3i))

y = (x − 5) (x + 3) (x² + x + 3ix + x − 3ix + 1 + 3i − 3i − 9i²)

y = (x − 5) (x + 3) (x² + 2x + 1 + 9)

y = (x − 5) (x + 3) (x² + 2x + 10)

Distribute to convert from factored form to standard form:

y = (x² + 3x − 5x − 15) (x² + 2x + 10)

y = (x² − 2x − 15) (x² + 2x + 10)

y = x²(x² + 2x + 10) − 2x(x² + 2x + 10) − 15(x² + 2x + 10)

y = x⁴ + 2x³ + 10x² − 2x³ − 4x² − 20x − 15x² − 30x − 150

y = x⁴ − 9x² − 50x − 150

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3 years ago
Point A and point C are shown on the number line below. Point C is located at 4⁄5. The sum of points B and C is equal to point A
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1/5 is the answer for your question!!
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3 years ago
Help me pleaseee!!!☹️
zavuch27 [327]

Answer:

i can't understand it as well

7 0
3 years ago
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