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3 years ago

SELECT TWO MIXED NUMBERS WHOSE ESTIMATED DIFFERENCE IS 1. JUSTIFY YOUR SELECTION?

Mathematics

1 answer:

Mariulka [41]3 years ago

3 0

It would be: 6 1/2 - 5 1/2

You can check by simplifying:
= 13/2 - 11/2
= 13-11/2
= 2/2
= 1

Hope this helps!

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Type the correct answer in each box. Alan, Bill, and Calvin are playing a game with collectible cards. At the moment, Alan has 1

steposvetlana [31]

Let A be the number of cards Alan has

B be the number of cards Bill has

C be the number of cards Calvin has

Alan had 11 less than 2 1/2 times the number of cards bill has.

is 2.5

Alan is 2.5 of bill has minus 11

A=2.5B -11

Calvin has 1 more than 1 1/2 times the number of cards bill has.

is 1.5

Calvin is 1.5 of bill has plus 1

C=1.5B + 1

Alan and Calvin have the same number of cards

So A=C

WE plug in A and C equations and solve for B

2.5B -11 = 1.5B + 1 (subtract 1.5B on both sides)

1B -11 = 1 (Add 11 on both sides)

B = 12

If Alan and Calvin have the same number of cards, the number bill has is 12

The number of cards Alan and Calvin each have is 19

Total cards = 12 + 19 + 19 = 50

If Alan, bill, and Calvin have all the cards in the deck then the deck has 50 cards

6 0

3 years ago

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19. Find the value of:<br>4/3tan^2 30° + Sin^2 60° – 3Cos^2 30°+ 3tan^2. 60° - 2tan^2 45°

Julli [10]

9514 1404 393

Answer:

107/18

Step-by-step explanation:

Your calculator and/or knowledge of trig function values can help you evaluate this.

= 4/3(1/3) +3/4 -3(3/4) +3(3) -2(1)

= 4/9 +3/4 -9/4 +9 -2

= 107/18

___

tan(30°) = 1/√3

tan(45°) = 1

tan(60°) = √3

sin(60°) = cos(30°) = √3/2

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3 years ago

Can you help me solve this please?

Aleksandr [31]

The answer is 840 180+180+180+180=720
720+60+60=840

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BigorU [14]

Answer:

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Step-by-step explanation:

You use collateral to decrease the risk for the bank. It can be like a car, or house. If you don't pay them back, they take the car or house.

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3 years ago

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What is the sum of the two vectors (-1,-4) and (3,5)

o-na [289]

Answer:

Step-by-step explanation:

$a(-1, -4)\\b(3, 5)\\a + b(2, 1)$

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3 years ago

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