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3 years ago

Please help. Polynomial question

Mathematics

1 answer:

Reil [10]3 years ago

4 0

Answer:

Therefore the Difference is

$-2x^{2}-7x+11$

Step-by-step explanation:

Vertical Format to Subtract

Given

4x² - 5x + 7

- (6x² + 2x - 4)

----------------------------

- - + ....... Sign will change for Subtraction

-----------------------------

∴ -2x² - 7x + 11 ....... As Required

------------------------------

Therefore the Difference is

$-2x^{2}-7x+11$

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sveticcg [70]

Answer:

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Step-by-step explanation:

The best way to go about this is to use a trig identity. You have the unknown opposite the angle and the hypotenuse, so its best to use the sine identity: $sin(x)=\frac{O}{H}$ , where O is the opposite side, and H is the hypotenuse.

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3 years ago

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Shalnov [3]

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3 years ago

A college basketball player makes 80% of his freethrows. Over the course of the season he will attempt 100 freethrows. Assuming

BARSIC [14]

Answer:

The probability that the number of free throws he makes exceeds 80 is approximately 0.50

Step-by-step explanation:

According to the given data we have the following:

P(Make a Throw) = 0.80%

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Binomial distribution:

mean: np = 0.80*100= 80

hence, standard deviation=√np(1-p)=√80*0.20=4

Therefore, to calculate the probability that the number of free throws he makes exceeds 80 we would have to make the following calculation:

P(X>80)= 1- P(X<80)

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P(Z<(80-80)/4)=1-P(Z<0)=1-50=0.50

The probability that the number of free throws he makes exceeds 80 is approximately 0.50

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3 years ago