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3 years ago

Help me! I will mark brainliest!

Mathematics

2 answers:

gulaghasi [49]3 years ago

8 0

Answer:

A. x^7

Step-by-step explanation:

Whenever you are dividing the same term with different exponents, you will subtract the exponents.

For this problem, we are going to subtract 4 from 11:

11 - 4 = 7

There you have it! you will get x^7.

And, if you really did write 11 x's and divided it by 4 x's, the 4 x's would cancel out, leaving you with 7 still remaining :D

Hope I helped!

-Mary

castortr0y [4]3 years ago

6 0

Answer:

$x^{7}$

Step-by-step explanation:

because $x^{11}/x^{4} \\$ is 11-4, which is 7. And you don't change the x.

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Answer:

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b. The probability that 5 or more fish were caught.

#Using normal approximation:

$P(X \geq 5) \approx P(Y \geq 4.5) = P(Z \geq\frac{ (4.5-11.04)}{\sqrt{(5.7408)}})\\\\=1-0.0032\\\\=0.9968$

Hence, the probability of catching 5+ is 0.9968

c. The probability of between 5 and 12 is calculated as;

-From b above $P(X\geq 5)=0.9968$ and a , $P(X\leq 12)$ =0.7291

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Hence, the probability of between 5 and 12 is 0.7259

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