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hjlf
2 years ago
7

If x - 9 is a factor of x2 - 5 - 36 what is the other factor

Mathematics
1 answer:
atroni [7]2 years ago
8 0
I assume your equation is actually x^2-5x-36. You can use synthetic division to divide out the x - 9 factor and the answer will be the remaining factor. Or think about factors of -36 that add up to -5 (that is using what we know about the FOIL method).
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Please see attachment

Step-by-step explanation:

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3 years ago
Please someone answer for this question
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All human blood can be "ABO-typed" as O, A, B, or AB, but the distribution of the types varies a bit among groups of people. Her
Tanya [424]

Answer:

a. Pr(They both have type O)

= Pr(They both have type O)

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b. Pr( they both have the same blood type)

= Pr( they both have the same blood type)

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= Pr (at least one person has type O)

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Step-by-step explanation:

a) Data:

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Chinese   0.35   0.27    0.26     0.12

American 0.45   0.4      0.11       0.04

b) Calculations:

i. Pr(They both have type O)

= Probability of Chinese with O multiplied by Probability of American with O

= 0.35 * 0.45

= 0.1575 = 15.75%

ii. Pr( they both have the same blood type)

= Probability of two out of 8 outcomes

= 2/8

= 0.25 = 25%

iii. Pr( at least one person has type O)

= Probability of (1 – p(none) )

The probability of none = p(none O blood type)

= p(none)

for Chinese = (0.27 + 0.26 + 0.12) * for American ( 0.4 + 0.11 + 0.04)

= 0.65 * 0.55 = 0.3575

Pr (at least one person has type O) = 1 - 0.3575

= 0.6425

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3 years ago
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Answer:

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Step-by-step explanation:

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2 years ago
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