A box contain 9 novels, 7 biographies, and 5 reference books. Alyssa randomly chooses a book, then she randomly chooses another book without replacing the first book.What is the probablity that she chooses two biographies? Write answer as decimal

Answers

Answer 1

Answer: $first\ book:\n9\ novels+7\ biographies+5\ reference=21\ all\ books\nprobability:\nP_1($

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Plz help me out! What is the result when x^3 + 6x^2 + 10x + 25 is divided by x+ 5?

Select the equation that most accurately depicts the word problem. A class of 19 pupils has five more girls than boys. Let n = the number of boys. n + (n + 19) = 5 n + (n + 5) = 19 n - (n + 5) = 19 n + (n - 19) = 5

Answers

Answer: $n+(n+5)=19$

Step-by-step explanation:

Given: The total number of students in a class = 19

Let n represents the number of boys.

Then, According to the question the number of girls = n+5

Now, the equation that most accurately depicts the given word problem will be :-

$\text{Girls+Boys=Total}\n\n\Rightarrow n+(n+5)=19$

Hence, the $n+(n+5)=19$ is the equation that most accurately depicts the given word problem .

n+(n + 5) = 19 should be the answer, if it is wrong then sorry..

n+ (n+ 5) = 19 is the best answer because they're are 19 people in the class so the total would be 19, now there is 5 more girls than boys and "n" represents the number of boys so you would put n + 5 = 19. You wouldn't subtract, you would add.

Rita owed her brother $ 15. After her birthday, she was able to pay him back and still have $45. How much money did Rita receive for her birthday ?

Answers

she received $60 on her birthday

Final answer:

Rita received $60 for her birthday. This is calculated by adding the money left after paying her debt ($45) to the debt she owed her brother ($15).

Explanation:

This problem is a basic arithmetic problem. To solve it, we need to identify the amounts of money involved. Here, we know that Rita owed her brother $15, and after paying him back, she was left with $45.

When paying back the debt, she would have been left with $0. But she has additional $45 left. It means this additional $45 is a part of the birthday money she received. But, she also paid her brother $15 from the same money. Therefore, her total birthday money should be the sum of money she paid her brother and the money remaining with her i.e. $15 + $45 = $60.

Learn more about Basic Arithmetic here:

brainly.com/question/30553381

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Th sum of the cost of dinner d a $12 tip divided equally between 3 people

Answers

12 / 3 so the answer would be 4

Which equation represents the line that passes through the point (1, 5) and has a slope of -2?

Answers

Answer:

y=-2x+7

Step-by-step explanation:

y-y1=m(x-x1)

y-5=-2(x-1)

y=-2x+2+5

y=-2x+7

Which angle forms a linear pair with ∠ABD

Answers

Answer:

I believe its angle DBC

Step-by-step explanation:

A linear pair has to equal 180 degrees together

Answer:

fbc

Step-by-step explanation: that is the closest answer

Factoring the difference of two squares x^2-1

Answers

difference of 2 perfect squres
if yo have
a^2-b^2 that equals (a-b)(a+b)

x^2-1^2=(x-1)(x+1)
tada

(X^2-1^2) (x-1)(x+1) I hope that is good!

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