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3 years ago

Find the sum and express it in simplest form. (3a^2 + 2a) + (5a^-a -7)

Mathematics

1 answer:

fredd [130]3 years ago

7 0

Answer:

8a^2+a-7

Step-by-step explanation:

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My Scando-Germanic friend, Odd Zahlen, often brings a die to class to answer multiple-choice final exam questions. Each multiple

Paraphin [41]

Answer:

$P(A=5)= 0.1366$

Step-by-step explanation:

From each multiple-choice question, there consists three answers to each;

So the probability of picking, the correct answer as they are uniformly distributed among the choices (a), (b), and (c) will be;

P(correct answer) = $\frac{1}{3}$

Now, to determine the probability of obtaining exactly 5 correct answers on a ten question examination using this method

Let use A as representative for the numbers of correct answers out of 10 questions that is being answered.

∴

$P(A=5)= [\left \ {{10} \atop {5}} \right.]$ $(\frac{1}{3}) ^5$ $(1-\frac{1}{3})^{10-5}$

$P(A=5)= [\left \ {{10} \atop {5}} \right.](\frac{1}{3}) ^5 (\frac{2}{3}) ^5$

$P(A=5)= 0.13657$

$P(A=5)= 0.1366$

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4 years ago

Find the solution set for inequality <br> 2x < 10

ElenaW [278]

X> 5 is the correct answer

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4 years ago

HELP HELP HELP HELP!! WILL GIVE BRAINLY!! Only answer IF YOURE SURE... WILL REPORT LINKS :)

jeka57 [31]

The answer is D.

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3 years ago

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LekaFEV [45]

Answer:

The answer is D

Step-by-step explanation:

Coplanar means that they are on the same closed area(or plane)- P, M, C, N are all on the same Plane.

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3 years ago

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Mrac [35]

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Find the sum and express it in simplest form. (3a^2 + 2a) + (5a^-a -7) ​

Find the sum and express it in simplest form. (3a^2 + 2a) + (5a^-a -7)