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3 years ago

Please factor these two equations.

Mathematics

1 answer:

Montano1993 [528]3 years ago

7 0

Answer:

The answer to your question is 9. (2x - 3)(3x - 4) 10. (x + 4)²

Step-by-step explanation:

9. 6x² - 17x + 12

-Multiply 6 by 12 and find the prime factors of the result

6 x 12 = 72

72 2

36 2

18 2

9 3

3 3

-Find two numbers that added gives -17

-These numbers are -8 and -9

-Substitution

6x² - 9x - 8x + 12

-Factor by grouping

3x(2x - 3) - 4(2x - 3)

(2x - 3)(3x - 4)

10. x² + 8x + 16

-Find two numbers that added gives 8 and multiply gives 16

-These numbers are 4 and 4

-Factor like a perfect square trinomial

(x + 4)²

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Step-by-step explanation:

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3 years ago

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kodGreya [7K]

Answer:

$6 {a}^{4} + 5b$

Step-by-step explanation:

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2 years ago

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The positions of two villages A and B. Village B is 100km away and on a bearing of 083° from village A.

blagie [28]

Answer:

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Step-by-step explanation:

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3 years ago

In a survey of 300 T.V. viewers, 40% said they watch network news programs. Find the margin of error for this survey if we want

bixtya [17]

Answer:

Step-by-step explanation:

The formula for calculating the margin of error is expressed as;

$M.E = z * \sqrt{\frac{p*(1-p)}{n} }$ where;

z is the z-score at 95% confidence = 1.96 (This is gotten from z-table)

p is the percentage probability of those that watched network news

p = 40% = 0.4

n is the sample size = 300

Substituting this values into the formula will give;

$M.E = 1.96*\sqrt{\frac{0.4(1-0.4)}{300} }\\ \\M.E = 1.96*\sqrt{\frac{0.4(0.6)}{300} }\\\\\\M.E = 1.96*\sqrt{\frac{0.24}{300} }\\\\\\M.E = 1.96*\sqrt{0.0008}\\\\\\M.E = 1.96*0.02828\\\\M.E \approx 0.05543$

Hence, the margin of error for this survey if we want 95% confidence in our estimate of the percent of T.V. viewers who watch network news programs is approximately 0.05543

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3 years ago

Find the value x.<br> Need help....thank you

nikklg [1K]

Step-by-step explanation:

It is parallel to the third side and has a length equal to half the length of the third side.

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3 years ago