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notka56 [123]
3 years ago
15

Rewrite the following phrase as a mathematical expression: twice a number increased by eighteen. 18 n + 2 2n + 18 2 + 18 O2/18 1

) NEXT QUESTION 2 ASK FOR HELP​
Mathematics
1 answer:
Alex777 [14]3 years ago
3 0

Answer:

2(n+18)

18(2+n)

2•(18•n)

I hope this helps

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Let [n] represent the greatest even integer less than n that divides n, for any positive integer n. For example, [24] = 12. What
ipn [44]
First you write down all even integers that divide 20.

Those are: 2,4,10,20

Since the request is that integer is less than n, 20 cannot be the answer.
This means that greatest even integer is 10

Answer is 10.
7 0
3 years ago
Hi. I need help with these questions.<br>See image for question.<br>​
Oduvanchick [21]

Step-by-step explanation:

<u>Given</u>

  • f(x) = 4x³ + 3x² - 2x - 1

<u>Divide it by the following:</u>

<u>(a) 2x + 1</u>

  • 4x³ + 3x² - 2x - 1 =
  • (4x³ + 2x²) + (x² + 1/2x) - (5/2x + 5/4) + 1/4 =
  • 2x²(2x+1) + 1/2x(2x + 1) - 5/4(2x + 1) + 1/4 =
  • (2x + 1)(2x² + 1/2x - 5/4) + 1/4

Quotient =  2x² + 1/2x - 5/4

Remainder = 1/4

<u>(b) 2x - 3</u>

  • 4x³ + 3x² - 2x - 1 =
  • (4x³ - 6x²) + (9x² - 13.5x) + (11.5x - 17.25) + 16.25 =
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Quotient = 2x² + 4.5x + 5.75

Remainder = 16.25

<u>(c) 4x - 1</u>

  • 4x³ + 3x² - 2x - 1 =
  • (4x³ - x²) + (4x² - x) - (2x - 1/2) - 3/2 =
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Quotient = x² + x - 1/2

Remainder = - 3/2

<u>(d) x + 2</u>

  • 4x³ + 3x² - 2x - 1 =
  • (4x³ + 8x²) - (5x² + 10x) + (8x + 16) - 17 =
  • (x + 2)(4x² - 5x + 8) - 17

Quotient = 4x² - 5x + 8

Remainder = - 17

8 0
2 years ago
Read 2 more answers
This one is number 6
iren2701 [21]
I’m not entirely sure, but i do think it could be B.
5 0
2 years ago
Read 2 more answers
What is the value of b in the equation 2x-y=6
andriy [413]

Answer:

are you sure its b? b doesnt seem to be present in 2x-y=6

4 0
2 years ago
What is the area of the triangle? Make me brainlest pleas
DiKsa [7]

Answer:

i looked it up

Step-by-step explanation:

7 0
3 years ago
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