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White raven [17]
3 years ago
6

In speech class, you lose 3 points for every 30 seconds

Mathematics
2 answers:
lara31 [8.8K]3 years ago
5 0

Answer:

9

Explanation:

The definition of an integer is a number that is a whole number. In this scenario, you are going 90 seconds over the time limit, and you lose 3 points for every 30 seconds you go over the time limit. To find the integer, I simply multiplied 3 by 3. 3 represents the amount of points you are losing per 30 seconds, and the other 3 represents the amount of times you lose points. You would thus get 9.

Law Incorporation [45]3 years ago
4 0

Answer:

9

Step-by-step explanation:

If you lose 3 points for every 30 seconds you go over the time limit, and your speech is 90 seconds over the time limit, you multiply 90*3 which would give you 270 points.

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(08.01, 8.02 MC) An expression is shown below: 18x3y − 9x2y − 72xy3 + 36y3 Part A: Rewrite the expression so the GCF is factored
vitfil [10]

Answer:

9y(2x - 1)(x - 2y)(x + 2y)

Step-by-step explanation:

Given

18x³y - 9x²y - 72xy³ + 36y³ ← factor out 9y from each term

= 9y(2x³ - x² - 8xy² + 4y²)

Factor the first/second and third/fourth term in the parenthesis

= 9y( x²(2x - 1) - 4y²(2x - 1)) ← factor out (2x - 1) from each term

= 9y(2x - 1)(x² - 4y²)

x² - 4y² is a difference of squares and factors in general as

a² - b² = (a - b)(a + b), thus

x² - 4y²

= x² - (2y)² = (x - 2y)(x + 2y), hence

18x³y - 9x²y + 72xy³ + 36y³

= 9y(2x - 1)(x - 2y)(x + 2y) ← in factored form

7 0
3 years ago
​PLEASE HELP! I will give you the brainiest and A LOT of points!
Alja [10]

Answer:The solution is in the attached file

Step-by-step explanation:

7 0
3 years ago
Find the greatest common factor of the following numbers.
densk [106]
2 times 3 times 4 times 4 times 5 equals 480
5 0
3 years ago
How to do question 4?
Nutka1998 [239]
Marie states that any integer greater than 4 will always get an even number of factors.

This can be proven wrong by (for example) 12.

12 has these factors:

1 x 12
2 x 6
3 x 4

12 has an ODD number of factor pairs.

Another example is 28.

28:
1 x 28
2 x 14
4 x 7

28 has an odd number of factor pairs.

I hope this helps!
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4 years ago
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anzhelika [568]
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