MATHEMATICS HIGH SCHOOL

The sum of the measures of the interior angles of a polygon is 1620°.How many sides does the polygon have?
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Answers

Answer 1
Answer: you should end up with 11 sides............

sum=(n-2)180
1620=(n-2)180

n-2=9
n=11 sides

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A teacher assigns a journal to be completed. In the journal, a student is supposed to include 32 quotations from a book they read in class. Their are 19 chapters in the book. How many quotations are to be given from every chapter?

Answers

32➗19= 1.684...

So that would mean that you would need 1-2 quotations per chapter with the minimum of at least 1 per chapter.

You would need 1-2 quotations

Hope this helps! :3

Use the distributive property to write an expression that is equivalent to 8(a+4)

Answers

Multiply it out!

8×a+8×4

8a+32

What is the surface area of the rectangular prism?200 in2


110 in2


220 in2


180 in

Answers

Answer:

220 in2

Step-by-step explanation:

(10 * 5) * 2 = 100

(10 * 4) * 2 = 80

(5 * 4) * 2 = 40

cuz the bottom of the rectangle

100 + 80 + 40 = 220

Answer:

Step-by-step explanation:

the correct answer is 220 in I took the k12 math quiz just now and got 80% but this question was correct

I took my final exam which is worth 12% of my grade,my final had 50 questions,but i think my teacher will grade only 25 questions from my final.I have 73.2% in my class.how much can my final affect my grade?how many points can i get from my final if i passed it?

Answers

If you get 50 questions, that means you get all 12%.
You add that you're current percentage: 73.2% + 12% = 85.20%

However, if you think you'll only get 25, then you'll get:
(25/50) (12%) = 6%

You add this to your current percentage:
73.20% + 6% = 79.20%

Refer to you passing score and see if 79.20% gives you a passing mark.

Find the approximate circumference of a circle (in inches) if the diameter is 14 inches

Answers

Answer:

43.96 inches

Step-by-step explanation:

The formula that you have to find the circumference is.

C = π d

Here,

C = circumference

d = diameter

Let us find now.

C = π d

C = π × 14

C = 3.14 × 14

C = 43.96 inches

Hope this helps you :-)

Let me know if you have any other questions :-)

Factor the expression completely.

4x2 - 12x + 9

Answers

(2x - 3)(2x - 3)
the answer to the question
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